illumos: manual page: bdw_de

BDW_DE_EVENTS(3CPC) CPU Performance Counters Library Functions

NAME

bdw_de_events - processor model specific performance counter events

DESCRIPTION

This manual page describes events specific to the following Intel CPU
models and is derived from Intel's perfmon data. For more information,
please consult the Intel Software Developer's Manual or Intel's perfmon
website.

CPU models described by this document:

+o Family 0x6, Model 0x56

The following events are supported:

ld_blocks.store_forward
This event counts how many times the load operation got the true
Block-on-Store blocking code preventing store forwarding. This
includes cases when:
- preceding store conflicts with the load (incomplete overlap);
- store forwarding is impossible due to u-arch limitations;
- preceding lock RMW operations are not forwarded;
- store has the no-forward bit set (uncacheable/page-split/masked
stores);
- all-blocking stores are used (mostly, fences and port I/O); and
others. The most common case is a load blocked due to its address
range overlapping with a preceding smaller uncompleted store. Note:
This event does not take into account cases of out-of-SW-control
(for example, SbTailHit), unknown physical STA, and cases of
blocking loads on store due to being non-WB memory type or a lock.
These cases are covered by other events. See the table of not
supported store forwards in the Optimization Guide.

ld_blocks.no_sr
This event counts the number of times that split load operations
are temporarily blocked because all resources for handling the
split accesses are in use.

misalign_mem_ref.loads
This event counts speculative cache-line split load uops dispatched
to the L1 cache.

misalign_mem_ref.stores
This event counts speculative cache line split store-address (STA)
uops dispatched to the L1 cache.

ld_blocks_partial.address_alias
This event counts false dependencies in MOB when the partial
comparison upon loose net check and dependency was resolved by the
Enhanced Loose net mechanism. This may not result in high
performance penalties. Loose net checks can fail when loads and
stores are 4k aliased.

dtlb_load_misses.miss_causes_a_walk
This event counts load misses in all DTLB levels that cause page
walks of any page size (4K/2M/4M/1G).

The following errata may apply to this: BDM69

dtlb_load_misses.walk_completed_4k
This event counts load misses in all DTLB levels that cause a
completed page walk (4K page size). The page walk can end with or
without a fault.

The following errata may apply to this: BDM69

dtlb_load_misses.walk_completed_2m_4m
This event counts load misses in all DTLB levels that cause a
completed page walk (2M and 4M page sizes). The page walk can end
with or without a fault.

The following errata may apply to this: BDM69

dtlb_load_misses.walk_completed_1g
This event counts load misses in all DTLB levels that cause a
completed page walk (1G page size). The page walk can end with or
without a fault.

The following errata may apply to this: BDM69

dtlb_load_misses.walk_completed
Demand load Miss in all translation lookaside buffer (TLB) levels
causes a page walk that completes of any page size.

The following errata may apply to this: BDM69

dtlb_load_misses.walk_duration
This event counts the number of cycles while PMH is busy with the
page walk.

The following errata may apply to this: BDM69

dtlb_load_misses.stlb_hit_4k
Load misses that miss the DTLB and hit the STLB (4K).

dtlb_load_misses.stlb_hit_2m
Load misses that miss the DTLB and hit the STLB (2M).

dtlb_load_misses.stlb_hit
Load operations that miss the first DTLB level but hit the second
and do not cause page walks.

int_misc.recovery_cycles
Cycles checkpoints in Resource Allocation Table (RAT) are
recovering from JEClear or machine clear.

int_misc.recovery_cycles_any
Core cycles the allocator was stalled due to recovery from earlier
clear event for any thread running on the physical core (e.g.
misprediction or memory nuke).

int_misc.rat_stall_cycles
This event counts the number of cycles during which Resource
Allocation Table (RAT) external stall is sent to Instruction Decode
Queue (IDQ) for the current thread. This also includes the cycles
during which the Allocator is serving another thread.

uops_issued.any
This event counts the number of Uops issued by the Resource
Allocation Table (RAT) to the reservation station (RS).

uops_issued.stall_cycles
This event counts cycles during which the Resource Allocation Table
(RAT) does not issue any Uops to the reservation station (RS) for
the current thread.

uops_issued.flags_merge
Number of flags-merge uops being allocated. Such uops considered
perf sensitive
added by GSR u-arch.

uops_issued.slow_lea
Number of slow LEA uops being allocated. A uop is generally
considered SlowLea if it has 3 sources (e.g. 2 sources + immediate)
regardless if as a result of LEA instruction or not.

uops_issued.single_mul
Number of Multiply packed/scalar single precision uops allocated.

arith.fpu_div_active
This event counts the number of the divide operations executed.
Uses edge-detect and a cmask value of 1 on ARITH.FPU_DIV_ACTIVE to
get the number of the divide operations executed.

l2_rqsts.demand_data_rd_miss
This event counts the number of demand Data Read requests that miss
L2 cache. Only not rejected loads are counted.

l2_rqsts.rfo_miss
RFO requests that miss L2 cache.

l2_rqsts.code_rd_miss
L2 cache misses when fetching instructions.

l2_rqsts.all_demand_miss
Demand requests that miss L2 cache.

l2_rqsts.l2_pf_miss
This event counts the number of requests from the L2 hardware
prefetchers that miss L2 cache.

l2_rqsts.miss
All requests that miss L2 cache.

l2_rqsts.demand_data_rd_hit
This event counts the number of demand Data Read requests that hit
L2 cache. Only not rejected loads are counted.

l2_rqsts.rfo_hit
RFO requests that hit L2 cache.

l2_rqsts.code_rd_hit
L2 cache hits when fetching instructions, code reads.

l2_rqsts.l2_pf_hit
This event counts the number of requests from the L2 hardware
prefetchers that hit L2 cache. L3 prefetch new types.

l2_rqsts.all_demand_data_rd
This event counts the number of demand Data Read requests
(including requests from L1D hardware prefetchers). These loads may
hit or miss L2 cache. Only non rejected loads are counted.

l2_rqsts.all_rfo
This event counts the total number of RFO (read for ownership)
requests to L2 cache. L2 RFO requests include both L1D demand RFO
misses as well as L1D RFO prefetches.

l2_rqsts.all_code_rd
This event counts the total number of L2 code requests.

l2_rqsts.all_demand_references
Demand requests to L2 cache.

l2_rqsts.all_pf
This event counts the total number of requests from the L2 hardware
prefetchers.

l2_rqsts.references
All L2 requests.

l2_demand_rqsts.wb_hit
This event counts the number of WB requests that hit L2 cache.

longest_lat_cache.miss
This event counts core-originated cacheable demand requests that
miss the last level cache (LLC). Demand requests include loads,
RFOs, and hardware prefetches from L1D, and instruction fetches
from IFU.

longest_lat_cache.reference
This event counts core-originated cacheable demand requests that
refer to the last level cache (LLC). Demand requests include loads,
RFOs, and hardware prefetches from L1D, and instruction fetches
from IFU.

cpu_clk_unhalted.thread_p
This is an architectural event that counts the number of thread
cycles while the thread is not in a halt state. The thread enters
the halt state when it is running the HLT instruction. The core
frequency may change from time to time due to power or thermal
throttling. For this reason, this event may have a changing ratio
with regards to wall clock time.

cpu_clk_unhalted.thread_p_any
Core cycles when at least one thread on the physical core is not in
halt state.

cpu_clk_thread_unhalted.ref_xclk
This is a fixed-frequency event programmed to general counters. It
counts when the core is unhalted at 100 Mhz.

cpu_clk_thread_unhalted.ref_xclk_any
Reference cycles when the at least one thread on the physical core
is unhalted (counts at 100 MHz rate).

cpu_clk_unhalted.ref_xclk
Reference cycles when the thread is unhalted (counts at 100 MHz
rate).

cpu_clk_unhalted.ref_xclk_any
Reference cycles when the at least one thread on the physical core
is unhalted (counts at 100 MHz rate).

cpu_clk_thread_unhalted.one_thread_active
Count XClk pulses when this thread is unhalted and the other thread
is halted.

cpu_clk_unhalted.one_thread_active
Count XClk pulses when this thread is unhalted and the other thread
is halted.

l1d_pend_miss.pending
This event counts duration of L1D miss outstanding, that is each
cycle number of Fill Buffers (FB) outstanding required by Demand
Reads. FB either is held by demand loads, or it is held by non-
demand loads and gets hit at least once by demand. The valid
outstanding interval is defined until the FB deallocation by one of
the following ways: from FB allocation, if FB is allocated by
demand; from the demand Hit FB, if it is allocated by hardware or
software prefetch. Note: In the L1D, a Demand Read contains
cacheable or noncacheable demand loads, including ones causing
cache-line splits and reads due to page walks resulted from any
request type.

l1d_pend_miss.pending_cycles
This event counts duration of L1D miss outstanding in cycles.

l1d_pend_miss.pending_cycles_any
Cycles with L1D load Misses outstanding from any thread on physical
core.

l1d_pend_miss.fb_full
Cycles a demand request was blocked due to Fill Buffers
inavailability.

dtlb_store_misses.miss_causes_a_walk
This event counts store misses in all DTLB levels that cause page
walks of any page size (4K/2M/4M/1G).

The following errata may apply to this: BDM69

dtlb_store_misses.walk_completed_4k
This event counts store misses in all DTLB levels that cause a
completed page walk (4K page size). The page walk can end with or
without a fault.

The following errata may apply to this: BDM69

dtlb_store_misses.walk_completed_2m_4m
This event counts store misses in all DTLB levels that cause a
completed page walk (2M and 4M page sizes). The page walk can end
with or without a fault.

The following errata may apply to this: BDM69

dtlb_store_misses.walk_completed_1g
This event counts store misses in all DTLB levels that cause a
completed page walk (1G page size). The page walk can end with or
without a fault.

The following errata may apply to this: BDM69

dtlb_store_misses.walk_completed
Store misses in all DTLB levels that cause completed page walks.

The following errata may apply to this: BDM69

dtlb_store_misses.walk_duration
This event counts the number of cycles while PMH is busy with the
page walk.

The following errata may apply to this: BDM69

dtlb_store_misses.stlb_hit_4k
Store misses that miss the DTLB and hit the STLB (4K).

dtlb_store_misses.stlb_hit_2m
Store misses that miss the DTLB and hit the STLB (2M).

dtlb_store_misses.stlb_hit
Store operations that miss the first TLB level but hit the second
and do not cause page walks.

load_hit_pre.sw_pf
This event counts all not software-prefetch load dispatches that
hit the fill buffer (FB) allocated for the software prefetch. It
can also be incremented by some lock instructions. So it should
only be used with profiling so that the locks can be excluded by
asm inspection of the nearby instructions.

load_hit_pre.hw_pf
This event counts all not software-prefetch load dispatches that
hit the fill buffer (FB) allocated for the hardware prefetch.

ept.walk_cycles
This event counts cycles for an extended page table walk. The
Extended Page directory cache differs from standard TLB caches by
the operating system that use it. Virtual machine operating systems
use the extended page directory cache, while guest operating
systems use the standard TLB caches.

l1d.replacement
This event counts L1D data line replacements including
opportunistic replacements, and replacements that require stall-
for-replace or block-for-replace.

tx_mem.abort_conflict
Number of times a TSX line had a cache conflict.

tx_mem.abort_capacity_write
Number of times a TSX Abort was triggered due to an evicted line
caused by a transaction overflow.

tx_mem.abort_hle_store_to_elided_lock
Number of times a TSX Abort was triggered due to a non-
release/commit store to lock.

tx_mem.abort_hle_elision_buffer_not_empty
Number of times a TSX Abort was triggered due to commit but Lock
Buffer not empty.

tx_mem.abort_hle_elision_buffer_mismatch
Number of times a TSX Abort was triggered due to release/commit but
data and address mismatch.

tx_mem.abort_hle_elision_buffer_unsupported_alignment
Number of times a TSX Abort was triggered due to attempting an
unsupported alignment from Lock Buffer.

tx_mem.hle_elision_buffer_full
Number of times we could not allocate Lock Buffer.

move_elimination.int_eliminated
Number of integer Move Elimination candidate uops that were
eliminated.

move_elimination.simd_eliminated
Number of SIMD Move Elimination candidate uops that were
eliminated.

move_elimination.int_not_eliminated
Number of integer Move Elimination candidate uops that were not
eliminated.

move_elimination.simd_not_eliminated
Number of SIMD Move Elimination candidate uops that were not
eliminated.

cpl_cycles.ring0
This event counts the unhalted core cycles during which the thread
is in the ring 0 privileged mode.

cpl_cycles.ring0_trans
This event counts when there is a transition from ring 1,2 or 3 to
ring0.

cpl_cycles.ring123
This event counts unhalted core cycles during which the thread is
in rings 1, 2, or 3.

tx_exec.misc1
Counts the number of times a class of instructions that may cause a
transactional abort was executed. Since this is the count of
execution, it may not always cause a transactional abort.

tx_exec.misc2
Unfriendly TSX abort triggered by a vzeroupper instruction.

tx_exec.misc3
Unfriendly TSX abort triggered by a nest count that is too deep.

tx_exec.misc4
RTM region detected inside HLE.

tx_exec.misc5
Counts the number of times an HLE XACQUIRE instruction was executed
inside an RTM transactional region.

rs_events.empty_cycles
This event counts cycles during which the reservation station (RS)
is empty for the thread. Note: In ST-mode, not active thread
should drive 0. This is usually caused by severely costly branch
mispredictions, or allocator/FE issues.

rs_events.empty_end
Counts end of periods where the Reservation Station (RS) was empty.
Could be useful to precisely locate Frontend Latency Bound issues.

offcore_requests_outstanding.demand_data_rd
This event counts the number of offcore outstanding Demand Data
Read transactions in the super queue (SQ) every cycle. A
transaction is considered to be in the Offcore outstanding state
between L2 miss and transaction completion sent to requestor. See
the corresponding Umask under OFFCORE_REQUESTS. Note: A prefetch
promoted to Demand is counted from the promotion point.

The following errata may apply to this: BDM76

offcore_requests_outstanding.cycles_with_demand_data_rd
This event counts cycles when offcore outstanding Demand Data Read
transactions are present in the super queue (SQ). A transaction is
considered to be in the Offcore outstanding state between L2 miss
and transaction completion sent to requestor (SQ de-allocation).

The following errata may apply to this: BDM76

offcore_requests_outstanding.demand_data_rd_ge_6
Cycles with at least 6 offcore outstanding Demand Data Read
transactions in uncore queue.

The following errata may apply to this: BDM76

offcore_requests_outstanding.demand_code_rd
This event counts the number of offcore outstanding Code Reads
transactions in the super queue every cycle. The Offcore
outstanding state of the transaction lasts from the L2 miss until
the sending transaction completion to requestor (SQ deallocation).
See the corresponding Umask under OFFCORE_REQUESTS.

The following errata may apply to this: BDM76

offcore_requests_outstanding.demand_rfo
This event counts the number of offcore outstanding RFO (store)
transactions in the super queue (SQ) every cycle. A transaction is
considered to be in the Offcore outstanding state between L2 miss
and transaction completion sent to requestor (SQ de-allocation).
See corresponding Umask under OFFCORE_REQUESTS.

The following errata may apply to this: BDM76

offcore_requests_outstanding.cycles_with_demand_rfo
This event counts the number of offcore outstanding demand rfo
Reads transactions in the super queue every cycle. The Offcore
outstanding state of the transaction lasts from the L2 miss until
the sending transaction completion to requestor (SQ deallocation).
See the corresponding Umask under OFFCORE_REQUESTS.

The following errata may apply to this: BDM76

offcore_requests_outstanding.all_data_rd
This event counts the number of offcore outstanding cacheable Core
Data Read transactions in the super queue every cycle. A
transaction is considered to be in the Offcore outstanding state
between L2 miss and transaction completion sent to requestor (SQ
de-allocation). See corresponding Umask under OFFCORE_REQUESTS.

The following errata may apply to this: BDM76

offcore_requests_outstanding.cycles_with_data_rd
This event counts cycles when offcore outstanding cacheable Core
Data Read transactions are present in the super queue. A
transaction is considered to be in the Offcore outstanding state
between L2 miss and transaction completion sent to requestor (SQ
de-allocation). See corresponding Umask under OFFCORE_REQUESTS.

The following errata may apply to this: BDM76

lock_cycles.split_lock_uc_lock_duration
This event counts cycles in which the L1 and L2 are locked due to a
UC lock or split lock. A lock is asserted in case of locked memory
access, due to noncacheable memory, locked operation that spans two
cache lines, or a page walk from the noncacheable page table. L1D
and L2 locks have a very high performance penalty and it is highly
recommended to avoid such access.

lock_cycles.cache_lock_duration
This event counts the number of cycles when the L1D is locked. It
is a superset of the 0x1 mask (BUS_LOCK_CLOCKS.BUS_LOCK_DURATION).

idq.empty
This counts the number of cycles that the instruction decoder queue
is empty and can indicate that the application may be bound in the
front end. It does not determine whether there are uops being
delivered to the Alloc stage since uops can be delivered by bypass
skipping the Instruction Decode Queue (IDQ) when it is empty.

idq.mite_uops
This event counts the number of uops delivered to Instruction
Decode Queue (IDQ) from the MITE path. Counting includes uops that
may bypass the IDQ. This also means that uops are not being
delivered from the Decode Stream Buffer (DSB).

idq.mite_cycles
This event counts cycles during which uops are being delivered to
Instruction Decode Queue (IDQ) from the MITE path. Counting
includes uops that may bypass the IDQ.

idq.dsb_uops
This event counts the number of uops delivered to Instruction
Decode Queue (IDQ) from the Decode Stream Buffer (DSB) path.
Counting includes uops that may bypass the IDQ.

idq.dsb_cycles
This event counts cycles during which uops are being delivered to
Instruction Decode Queue (IDQ) from the Decode Stream Buffer (DSB)
path. Counting includes uops that may bypass the IDQ.

idq.ms_dsb_uops
This event counts the number of uops initiated by Decode Stream
Buffer (DSB) that are being delivered to Instruction Decode Queue
(IDQ) while the Microcode Sequencer (MS) is busy. Counting includes
uops that may bypass the IDQ.

idq.ms_dsb_cycles
This event counts cycles during which uops initiated by Decode
Stream Buffer (DSB) are being delivered to Instruction Decode Queue
(IDQ) while the Microcode Sequencer (MS) is busy. Counting includes
uops that may bypass the IDQ.

idq.ms_dsb_occur
This event counts the number of deliveries to Instruction Decode
Queue (IDQ) initiated by Decode Stream Buffer (DSB) while the
Microcode Sequencer (MS) is busy. Counting includes uops that may
bypass the IDQ.

idq.all_dsb_cycles_4_uops
This event counts the number of cycles 4 uops were delivered to
Instruction Decode Queue (IDQ) from the Decode Stream Buffer (DSB)
path. Counting includes uops that may bypass the IDQ.

idq.all_dsb_cycles_any_uops
This event counts the number of cycles uops were delivered to
Instruction Decode Queue (IDQ) from the Decode Stream Buffer (DSB)
path. Counting includes uops that may bypass the IDQ.

idq.ms_mite_uops
This event counts the number of uops initiated by MITE and
delivered to Instruction Decode Queue (IDQ) while the Microcode
Sequenser (MS) is busy. Counting includes uops that may bypass the
IDQ.

idq.all_mite_cycles_4_uops
This event counts the number of cycles 4 uops were delivered to
Instruction Decode Queue (IDQ) from the MITE path. Counting
includes uops that may bypass the IDQ. This also means that uops
are not being delivered from the Decode Stream Buffer (DSB).

idq.all_mite_cycles_any_uops
This event counts the number of cycles uops were delivered to
Instruction Decode Queue (IDQ) from the MITE path. Counting
includes uops that may bypass the IDQ. This also means that uops
are not being delivered from the Decode Stream Buffer (DSB).

idq.ms_uops
This event counts the total number of uops delivered to Instruction
Decode Queue (IDQ) while the Microcode Sequenser (MS) is busy.
Counting includes uops that may bypass the IDQ. Uops maybe
initiated by Decode Stream Buffer (DSB) or MITE.

idq.ms_cycles
This event counts cycles during which uops are being delivered to
Instruction Decode Queue (IDQ) while the Microcode Sequenser (MS)
is busy. Counting includes uops that may bypass the IDQ. Uops maybe
initiated by Decode Stream Buffer (DSB) or MITE.

idq.ms_switches
Number of switches from DSB (Decode Stream Buffer) or MITE (legacy
decode pipeline) to the Microcode Sequencer.

idq.mite_all_uops
This event counts the number of uops delivered to Instruction
Decode Queue (IDQ) from the MITE path. Counting includes uops that
may bypass the IDQ. This also means that uops are not being
delivered from the Decode Stream Buffer (DSB).

icache.hit
This event counts the number of both cacheable and noncacheable
Instruction Cache, Streaming Buffer and Victim Cache Reads
including UC fetches.

icache.misses
This event counts the number of instruction cache, streaming buffer
and victim cache misses. Counting includes UC accesses.

icache.ifdata_stall
This event counts cycles during which the demand fetch waits for
data (wfdM104H) from L2 or iSB (opportunistic hit).

itlb_misses.miss_causes_a_walk
This event counts store misses in all DTLB levels that cause page
walks of any page size (4K/2M/4M/1G).

The following errata may apply to this: BDM69

itlb_misses.walk_completed_4k
This event counts store misses in all DTLB levels that cause a
completed page walk (4K page size). The page walk can end with or
without a fault.

The following errata may apply to this: BDM69

itlb_misses.walk_completed_2m_4m
This event counts store misses in all DTLB levels that cause a
completed page walk (2M and 4M page sizes). The page walk can end
with or without a fault.

The following errata may apply to this: BDM69

itlb_misses.walk_completed_1g
This event counts store misses in all DTLB levels that cause a
completed page walk (1G page size). The page walk can end with or
without a fault.

The following errata may apply to this: BDM69

itlb_misses.walk_completed
Misses in all ITLB levels that cause completed page walks.

The following errata may apply to this: BDM69

itlb_misses.walk_duration
This event counts the number of cycles while PMH is busy with the
page walk.

The following errata may apply to this: BDM69

itlb_misses.stlb_hit_4k
Core misses that miss the DTLB and hit the STLB (4K).

itlb_misses.stlb_hit_2m
Code misses that miss the DTLB and hit the STLB (2M).

itlb_misses.stlb_hit
Operations that miss the first ITLB level but hit the second and do
not cause any page walks.

ild_stall.lcp
This event counts stalls occured due to changing prefix length (66,
67 or REX.W when they change the length of the decoded
instruction). Occurrences counting is proportional to the number of
prefixes in a 16B-line. This may result in the following penalties:
three-cycle penalty for each LCP in a 16-byte chunk.

br_inst_exec.nontaken_conditional
This event counts not taken macro-conditional branch instructions.

br_inst_exec.taken_conditional
This event counts taken speculative and retired macro-conditional
branch instructions.

br_inst_exec.taken_direct_jump
This event counts taken speculative and retired macro-conditional
branch instructions excluding calls and indirect branches.

br_inst_exec.taken_indirect_jump_non_call_ret
This event counts taken speculative and retired indirect branches
excluding calls and return branches.

br_inst_exec.taken_indirect_near_return
This event counts taken speculative and retired indirect branches
that have a return mnemonic.

br_inst_exec.taken_direct_near_call
This event counts taken speculative and retired direct near calls.

br_inst_exec.taken_indirect_near_call
This event counts taken speculative and retired indirect calls
including both register and memory indirect.

br_inst_exec.all_conditional
This event counts both taken and not taken speculative and retired
macro-conditional branch instructions.

br_inst_exec.all_direct_jmp
This event counts both taken and not taken speculative and retired
macro-unconditional branch instructions, excluding calls and
indirects.

br_inst_exec.all_indirect_jump_non_call_ret
This event counts both taken and not taken speculative and retired
indirect branches excluding calls and return branches.

br_inst_exec.all_indirect_near_return
This event counts both taken and not taken speculative and retired
indirect branches that have a return mnemonic.

br_inst_exec.all_direct_near_call
This event counts both taken and not taken speculative and retired
direct near calls.

br_inst_exec.all_branches
This event counts both taken and not taken speculative and retired
branch instructions.

br_misp_exec.nontaken_conditional
This event counts not taken speculative and retired mispredicted
macro conditional branch instructions.

br_misp_exec.taken_conditional
This event counts taken speculative and retired mispredicted macro
conditional branch instructions.

br_misp_exec.taken_indirect_jump_non_call_ret
This event counts taken speculative and retired mispredicted
indirect branches excluding calls and returns.

br_misp_exec.taken_return_near
This event counts taken speculative and retired mispredicted
indirect branches that have a return mnemonic.

br_misp_exec.taken_indirect_near_call
Taken speculative and retired mispredicted indirect calls.

br_misp_exec.all_conditional
This event counts both taken and not taken speculative and retired
mispredicted macro conditional branch instructions.

br_misp_exec.all_indirect_jump_non_call_ret
This event counts both taken and not taken mispredicted indirect
branches excluding calls and returns.

br_misp_exec.all_branches
This event counts both taken and not taken speculative and retired
mispredicted branch instructions.

idq_uops_not_delivered.core
This event counts the number of uops not delivered to Resource
Allocation Table (RAT) per thread adding 4 x when Resource
Allocation Table (RAT) is not stalled and Instruction Decode Queue
(IDQ) delivers x uops to Resource Allocation Table (RAT) (where x
belongs to {0,1,2,3}). Counting does not cover cases when:
a. IDQ-Resource Allocation Table (RAT) pipe serves the other
thread;
b. Resource Allocation Table (RAT) is stalled for the thread
(including uop drops and clear BE conditions);
c. Instruction Decode Queue (IDQ) delivers four uops.

idq_uops_not_delivered.cycles_0_uops_deliv.core
This event counts, on the per-thread basis, cycles when no uops are
delivered to Resource Allocation Table (RAT).
IDQ_Uops_Not_Delivered.core =4.

idq_uops_not_delivered.cycles_le_1_uop_deliv.core
This event counts, on the per-thread basis, cycles when less than 1
uop is delivered to Resource Allocation Table (RAT).
IDQ_Uops_Not_Delivered.core >=3.

idq_uops_not_delivered.cycles_le_2_uop_deliv.core
Cycles with less than 2 uops delivered by the front end.

idq_uops_not_delivered.cycles_le_3_uop_deliv.core
Cycles with less than 3 uops delivered by the front end.

idq_uops_not_delivered.cycles_fe_was_ok
Counts cycles FE delivered 4 uops or Resource Allocation Table
(RAT) was stalling FE.

uop_dispatches_cancelled.simd_prf
This event counts the number of micro-operations cancelled after
they were dispatched from the scheduler to the execution units when
the total number of physical register read ports across all
dispatch ports exceeds the read bandwidth of the physical register
file. The SIMD_PRF subevent applies to the following instructions:
VDPPS, DPPS, VPCMPESTRI, PCMPESTRI, VPCMPESTRM, PCMPESTRM, VFMADD*,
VFMADDSUB*, VFMSUB*, VMSUBADD*, VFNMADD*, VFNMSUB*. See the
Broadwell Optimization Guide for more information.

uops_dispatched_port.port_0
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 0.

uops_executed_port.port_0_core
Cycles per core when uops are exectuted in port 0.

uops_executed_port.port_0
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 0.

uops_dispatched_port.port_1
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 1.

uops_executed_port.port_1_core
Cycles per core when uops are exectuted in port 1.

uops_executed_port.port_1
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 1.

uops_dispatched_port.port_2
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 2.

uops_executed_port.port_2_core
Cycles per core when uops are dispatched to port 2.

uops_executed_port.port_2
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 2.

uops_dispatched_port.port_3
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 3.

uops_executed_port.port_3_core
Cycles per core when uops are dispatched to port 3.

uops_executed_port.port_3
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 3.

uops_dispatched_port.port_4
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 4.

uops_executed_port.port_4_core
Cycles per core when uops are exectuted in port 4.

uops_executed_port.port_4
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 4.

uops_dispatched_port.port_5
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 5.

uops_executed_port.port_5_core
Cycles per core when uops are exectuted in port 5.

uops_executed_port.port_5
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 5.

uops_dispatched_port.port_6
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 6.

uops_executed_port.port_6_core
Cycles per core when uops are exectuted in port 6.

uops_executed_port.port_6
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 6.

uops_dispatched_port.port_7
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 7.

uops_executed_port.port_7_core
Cycles per core when uops are dispatched to port 7.

uops_executed_port.port_7
This event counts, on the per-thread basis, cycles during which
uops are dispatched from the Reservation Station (RS) to port 7.

resource_stalls.any
This event counts resource-related stall cycles. Reasons for stalls
can be as follows:
- *any* u-arch structure got full (LB, SB, RS, ROB, BOB, LM,
Physical Register Reclaim Table (PRRT), or Physical History Table
(PHT) slots)
- *any* u-arch structure got empty (like INT/SIMD FreeLists)
- FPU control word (FPCW), MXCSR and others. This counts cycles
that the pipeline backend blocked uop delivery from the front end.

resource_stalls.rs
This event counts stall cycles caused by absence of eligible
entries in the reservation station (RS). This may result from RS
overflow, or from RS deallocation because of the RS array Write
Port allocation scheme (each RS entry has two write ports instead
of four. As a result, empty entries could not be used, although RS
is not really full). This counts cycles that the pipeline backend
blocked uop delivery from the front end.

resource_stalls.sb
This event counts stall cycles caused by the store buffer (SB)
overflow (excluding draining from synch). This counts cycles that
the pipeline backend blocked uop delivery from the front end.

resource_stalls.rob
This event counts ROB full stall cycles. This counts cycles that
the pipeline backend blocked uop delivery from the front end.

cycle_activity.cycles_l2_pending
Counts number of cycles the CPU has at least one pending demand*
load request missing the L2 cache.

cycle_activity.cycles_l2_miss
Cycles while L2 cache miss demand load is outstanding.

cycle_activity.cycles_ldm_pending
Counts number of cycles the CPU has at least one pending demand
load request (that is cycles with non-completed load waiting for
its data from memory subsystem).

cycle_activity.cycles_mem_any
Cycles while memory subsystem has an outstanding load.

cycle_activity.cycles_no_execute
Counts number of cycles nothing is executed on any execution port.

cycle_activity.stalls_total
Total execution stalls.

cycle_activity.stalls_l2_pending
Counts number of cycles nothing is executed on any execution port,
while there was at least one pending demand* load request missing
the L2 cache.(as a footprint) * includes also L1 HW prefetch
requests that may or may not be required by demands.

cycle_activity.stalls_l2_miss
Execution stalls while L2 cache miss demand load is outstanding.

cycle_activity.stalls_ldm_pending
Counts number of cycles nothing is executed on any execution port,
while there was at least one pending demand load request.

cycle_activity.stalls_mem_any
Execution stalls while memory subsystem has an outstanding load.

cycle_activity.cycles_l1d_pending
Counts number of cycles the CPU has at least one pending demand
load request missing the L1 data cache.

cycle_activity.cycles_l1d_miss
Cycles while L1 cache miss demand load is outstanding.

cycle_activity.stalls_l1d_pending
Counts number of cycles nothing is executed on any execution port,
while there was at least one pending demand load request missing
the L1 data cache.

cycle_activity.stalls_l1d_miss
Execution stalls while L1 cache miss demand load is outstanding.

lsd.uops
Number of Uops delivered by the LSD.

lsd.cycles_4_uops
Cycles 4 Uops delivered by the LSD, but didn't come from the
decoder.

lsd.cycles_active
Cycles Uops delivered by the LSD, but didn't come from the decoder.

dsb2mite_switches.penalty_cycles
This event counts Decode Stream Buffer (DSB)-to-MITE switch true
penalty cycles. These cycles do not include uops routed through
because of the switch itself, for example, when Instruction Decode
Queue (IDQ) pre-allocation is unavailable, or Instruction Decode
Queue (IDQ) is full. SBD-to-MITE switch true penalty cycles happen
after the merge mux (MM) receives Decode Stream Buffer (DSB) Sync-
indication until receiving the first MITE uop. MM is placed before
Instruction Decode Queue (IDQ) to merge uops being fed from the
MITE and Decode Stream Buffer (DSB) paths. Decode Stream Buffer
(DSB) inserts the Sync-indication whenever a Decode Stream Buffer
(DSB)-to-MITE switch occurs. Penalty: A Decode Stream Buffer (DSB)
hit followed by a Decode Stream Buffer (DSB) miss can cost up to
six cycles in which no uops are delivered to the IDQ. Most often,
such switches from the Decode Stream Buffer (DSB) to the legacy
pipeline cost 02 cycles.

itlb.itlb_flush
This event counts the number of flushes of the big or small ITLB
pages. Counting include both TLB Flush (covering all sets) and TLB
Set Clear (set-specific).

offcore_requests.demand_data_rd
This event counts the Demand Data Read requests sent to uncore. Use
it in conjunction with OFFCORE_REQUESTS_OUTSTANDING to determine
average latency in the uncore.

offcore_requests.demand_code_rd
This event counts both cacheable and noncachaeble code read
requests.

offcore_requests.demand_rfo
This event counts the demand RFO (read for ownership) requests
including regular RFOs, locks, ItoM.

offcore_requests.all_data_rd
This event counts the demand and prefetch data reads. All Core Data
Reads include cacheable Demands and L2 prefetchers (not L3
prefetchers). Counting also covers reads due to page walks resulted
from any request type.

uops_executed.thread
Number of uops to be executed per-thread each cycle.

uops_executed.stall_cycles
This event counts cycles during which no uops were dispatched from
the Reservation Station (RS) per thread.

uops_executed.cycles_ge_1_uop_exec
Cycles where at least 1 uop was executed per-thread.

uops_executed.cycles_ge_2_uops_exec
Cycles where at least 2 uops were executed per-thread.

uops_executed.cycles_ge_3_uops_exec
Cycles where at least 3 uops were executed per-thread.

uops_executed.cycles_ge_4_uops_exec
Cycles where at least 4 uops were executed per-thread.

uops_executed.core
Number of uops executed from any thread.

uops_executed.core_cycles_ge_1
Cycles at least 1 micro-op is executed from any thread on physical
core.

uops_executed.core_cycles_ge_2
Cycles at least 2 micro-op is executed from any thread on physical
core.

uops_executed.core_cycles_ge_3
Cycles at least 3 micro-op is executed from any thread on physical
core.

uops_executed.core_cycles_ge_4
Cycles at least 4 micro-op is executed from any thread on physical
core.

uops_executed.core_cycles_none
Cycles with no micro-ops executed from any thread on physical core.

offcore_requests_buffer.sq_full
This event counts the number of cases when the offcore requests
buffer cannot take more entries for the core. This can happen when
the superqueue does not contain eligible entries, or when L1D
writeback pending FIFO requests is full. Note: Writeback pending
FIFO has six entries.

page_walker_loads.dtlb_l1
Number of DTLB page walker hits in the L1+FB.

The following errata may apply to this: BDM69, BDM98

page_walker_loads.dtlb_l2
Number of DTLB page walker hits in the L2.

The following errata may apply to this: BDM69, BDM98

page_walker_loads.dtlb_l3
Number of DTLB page walker hits in the L3 + XSNP.

The following errata may apply to this: BDM69, BDM98

page_walker_loads.dtlb_memory
Number of DTLB page walker hits in Memory.

The following errata may apply to this: BDM69, BDM98

page_walker_loads.itlb_l1
Number of ITLB page walker hits in the L1+FB.

The following errata may apply to this: BDM69, BDM98

page_walker_loads.itlb_l2
Number of ITLB page walker hits in the L2.

The following errata may apply to this: BDM69, BDM98

page_walker_loads.itlb_l3
Number of ITLB page walker hits in the L3 + XSNP.

The following errata may apply to this: BDM69, BDM98

tlb_flush.dtlb_thread
This event counts the number of DTLB flush attempts of the thread-
specific entries.

tlb_flush.stlb_any
This event counts the number of any STLB flush attempts (such as
entire, VPID, PCID, InvPage, CR3 write, and so on).

inst_retired.any_p
This event counts the number of instructions (EOMs) retired.
Counting covers macro-fused instructions individually (that is,
increments by two).

The following errata may apply to this: BDM61

inst_retired.prec_dist
This is a precise version (that is, uses PEBS) of the event that
counts instructions retired.

The following errata may apply to this: BDM11, BDM55

inst_retired.x87
This event counts FP operations retired. For X87 FP operations that
have no exceptions counting also includes flows that have several
X87, or flows that use X87 uops in the exception handling.

other_assists.avx_to_sse
This event counts the number of transitions from AVX-256 to legacy
SSE when penalty is applicable.

The following errata may apply to this: BDM30

other_assists.sse_to_avx
This event counts the number of transitions from legacy SSE to
AVX-256 when penalty is applicable.

The following errata may apply to this: BDM30

other_assists.any_wb_assist
Number of times any microcode assist is invoked by HW upon uop
writeback.

uops_retired.all
This is a precise version (that is, uses PEBS) of the event that
counts all actually retired uops. Counting increments by two for
micro-fused uops, and by one for macro-fused and other uops.
Maximal increment value for one cycle is eight.

uops_retired.stall_cycles
This event counts cycles without actually retired uops.

uops_retired.total_cycles
Number of cycles using always true condition (uops_ret < 16)
applied to non PEBS uops retired event.

uops_retired.retire_slots
This is a precise version (that is, uses PEBS) of the event that
counts the number of retirement slots used.

machine_clears.cycles
This event counts both thread-specific (TS) and all-thread (AT)
nukes.

machine_clears.count
Number of machine clears (nukes) of any type.

machine_clears.memory_ordering
This event counts the number of memory ordering Machine Clears
detected. Memory Ordering Machine Clears can result from one of the
following: 1. memory disambiguation, 2. external snoop, or 3. cross
SMT-HW-thread snoop (stores) hitting load buffer.

machine_clears.smc
This event counts self-modifying code (SMC) detected, which causes
a machine clear.

machine_clears.maskmov
Maskmov false fault - counts number of time ucode passes through
Maskmov flow due to instruction's mask being 0 while the flow was
completed without raising a fault.

br_inst_retired.all_branches
This event counts all (macro) branch instructions retired.

br_inst_retired.conditional
This is a precise version (that is, uses PEBS) of the event that
counts conditional branch instructions retired.

br_inst_retired.near_call
This is a precise version (that is, uses PEBS) of the event that
counts both direct and indirect near call instructions retired.

br_inst_retired.near_call_r3
This is a precise version (that is, uses PEBS) of the event that
counts both direct and indirect macro near call instructions
retired (captured in ring 3).

br_inst_retired.all_branches_pebs
This is a precise version of BR_INST_RETIRED.ALL_BRANCHES that
counts all (macro) branch instructions retired.

The following errata may apply to this: BDW98

br_inst_retired.near_return
This is a precise version (that is, uses PEBS) of the event that
counts return instructions retired.

br_inst_retired.not_taken
This event counts not taken branch instructions retired.

br_inst_retired.near_taken
This is a precise version (that is, uses PEBS) of the event that
counts taken branch instructions retired.

br_inst_retired.far_branch
This event counts far branch instructions retired.

The following errata may apply to this: BDW98

br_misp_retired.all_branches
This event counts all mispredicted macro branch instructions
retired.

br_misp_retired.conditional
This is a precise version (that is, uses PEBS) of the event that
counts mispredicted conditional branch instructions retired.

br_misp_retired.all_branches_pebs
This is a precise version of BR_MISP_RETIRED.ALL_BRANCHES that
counts all mispredicted macro branch instructions retired.

br_misp_retired.ret
This is a precise version (that is, uses PEBS) of the event that
counts mispredicted return instructions retired.

br_misp_retired.near_taken
Number of near branch instructions retired that were mispredicted
and taken. (Precise Event - PEBS).

fp_arith_inst_retired.scalar_double
Number of SSE/AVX computational scalar double precision floating-
point instructions retired. Each count represents 1 computation.
Applies to SSE* and AVX* scalar double precision floating-point
instructions: ADD SUB MUL DIV MIN MAX SQRT FM(N)ADD/SUB.
FM(N)ADD/SUB instructions count twice as they perform multiple
calculations per element.

fp_arith_inst_retired.scalar_single
Number of SSE/AVX computational scalar single precision floating-
point instructions retired. Each count represents 1 computation.
Applies to SSE* and AVX* scalar single precision floating-point
instructions: ADD SUB MUL DIV MIN MAX RCP RSQRT SQRT FM(N)ADD/SUB.
FM(N)ADD/SUB instructions count twice as they perform multiple
calculations per element.

fp_arith_inst_retired.scalar
Number of SSE/AVX computational scalar floating-point instructions
retired. Applies to SSE* and AVX* scalar, double and single
precision floating-point: ADD SUB MUL DIV MIN MAX RSQRT RCP SQRT
FM(N)ADD/SUB. FM(N)ADD/SUB instructions count twice as they perform
multiple calculations per element.

fp_arith_inst_retired.128b_packed_double
Number of SSE/AVX computational 128-bit packed double precision
floating-point instructions retired. Each count represents 2
computations. Applies to SSE* and AVX* packed double precision
floating-point instructions: ADD SUB MUL DIV MIN MAX SQRT DPP
FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count twice as
they perform multiple calculations per element.

fp_arith_inst_retired.128b_packed_single
Number of SSE/AVX computational 128-bit packed single precision
floating-point instructions retired. Each count represents 4
computations. Applies to SSE* and AVX* packed single precision
floating-point instructions: ADD SUB MUL DIV MIN MAX RCP RSQRT SQRT
DPP FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count twice as
they perform multiple calculations per element.

fp_arith_inst_retired.256b_packed_double
Number of SSE/AVX computational 256-bit packed double precision
floating-point instructions retired. Each count represents 4
computations. Applies to SSE* and AVX* packed double precision
floating-point instructions: ADD SUB MUL DIV MIN MAX SQRT DPP
FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count twice as
they perform multiple calculations per element.

fp_arith_inst_retired.double
Number of SSE/AVX computational double precision floating-point
instructions retired. Applies to SSE* and AVX*scalar, double and
single precision floating-point: ADD SUB MUL DIV MIN MAX SQRT DPP
FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count twice as
they perform multiple calculations per element. ?.

fp_arith_inst_retired.256b_packed_single
Number of SSE/AVX computational 256-bit packed single precision
floating-point instructions retired. Each count represents 8
computations. Applies to SSE* and AVX* packed single precision
floating-point instructions: ADD SUB MUL DIV MIN MAX RCP RSQRT SQRT
DPP FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count twice as
they perform multiple calculations per element.

fp_arith_inst_retired.single
Number of SSE/AVX computational single precision floating-point
instructions retired. Applies to SSE* and AVX*scalar, double and
single precision floating-point: ADD SUB MUL DIV MIN MAX RCP RSQRT
SQRT DPP FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count
twice as they perform multiple calculations per element. ?.

fp_arith_inst_retired.packed
Number of SSE/AVX computational packed floating-point instructions
retired. Applies to SSE* and AVX*, packed, double and single
precision floating-point: ADD SUB MUL DIV MIN MAX RSQRT RCP SQRT
DPP FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count twice as
they perform multiple calculations per element.

hle_retired.start
Number of times we entered an HLE region
does not count nested transactions.

hle_retired.commit
Number of times HLE commit succeeded.

hle_retired.aborted
Number of times HLE abort was triggered (PEBS).

hle_retired.aborted_misc1
Number of times an HLE abort was attributed to a Memory condition
(See TSX_Memory event for additional details).

hle_retired.aborted_misc2
Number of times the TSX watchdog signaled an HLE abort.

hle_retired.aborted_misc3
Number of times a disallowed operation caused an HLE abort.

hle_retired.aborted_misc4
Number of times HLE caused a fault.

hle_retired.aborted_misc5
Number of times HLE aborted and was not due to the abort conditions
in subevents 3-6.

rtm_retired.start
Number of times we entered an RTM region
does not count nested transactions.

rtm_retired.commit
Number of times RTM commit succeeded.

rtm_retired.aborted
Number of times RTM abort was triggered (PEBS).

rtm_retired.aborted_misc1
Number of times an RTM abort was attributed to a Memory condition
(See TSX_Memory event for additional details).

rtm_retired.aborted_misc2
Number of times the TSX watchdog signaled an RTM abort.

rtm_retired.aborted_misc3
Number of times a disallowed operation caused an RTM abort.

rtm_retired.aborted_misc4
Number of times a RTM caused a fault.

rtm_retired.aborted_misc5
Number of times RTM aborted and was not due to the abort conditions
in subevents 3-6.

fp_assist.x87_output
This event counts the number of x87 floating point (FP) micro-code
assist (numeric overflow/underflow, inexact result) when the output
value (destination register) is invalid.

fp_assist.x87_input
This event counts x87 floating point (FP) micro-code assist
(invalid operation, denormal operand, SNaN operand) when the input
value (one of the source operands to an FP instruction) is invalid.

fp_assist.simd_output
This event counts the number of SSE* floating point (FP) micro-code
assist (numeric overflow/underflow) when the output value
(destination register) is invalid. Counting covers only cases
involving penalties that require micro-code assist intervention.

fp_assist.simd_input
This event counts any input SSE* FP assist - invalid operation,
denormal operand, dividing by zero, SNaN operand. Counting includes
only cases involving penalties that required micro-code assist
intervention.

fp_assist.any
This event counts cycles with any input and output SSE or x87 FP
assist. If an input and output assist are detected on the same
cycle the event increments by 1.

rob_misc_events.lbr_inserts
This event counts cases of saving new LBR records by hardware. This
assumes proper enabling of LBRs and takes into account LBR
filtering done by the LBR_SELECT register.

mem_uops_retired.stlb_miss_loads
This is a precise version (that is, uses PEBS) of the event that
counts load uops with true STLB miss retired to the architected
path. True STLB miss is an uop triggering page walk that gets
completed without blocks, and later gets retired. This page walk
can end up with or without a fault.

mem_uops_retired.stlb_miss_stores
This is a precise version (that is, uses PEBS) of the event that
counts store uops true STLB miss retired to the architected path.
True STLB miss is an uop triggering page walk that gets completed
without blocks, and later gets retired. This page walk can end up
with or without a fault.

mem_uops_retired.lock_loads
This is a precise version (that is, uses PEBS) of the event that
counts load uops with locked access retired to the architected
path.

The following errata may apply to this: BDM35

mem_uops_retired.split_loads
This is a precise version (that is, uses PEBS) of the event that
counts line-splitted load uops retired to the architected path. A
line split is across 64B cache-line which includes a page split
(4K).

mem_uops_retired.split_stores
This is a precise version (that is, uses PEBS) of the event that
counts line-splitted store uops retired to the architected path. A
line split is across 64B cache-line which includes a page split
(4K).

mem_uops_retired.all_loads
This is a precise version (that is, uses PEBS) of the event that
counts load uops retired to the architected path with a filter on
bits 0 and 1 applied. Note: This event ?ounts AVX-256bit
load/store double-pump memory uops as a single uop at retirement.
This event also counts SW prefetches.

mem_uops_retired.all_stores
This is a precise version (that is, uses PEBS) of the event that
counts store uops retired to the architected path with a filter on
bits 0 and 1 applied. Note: This event ?ounts AVX-256bit
load/store double-pump memory uops as a single uop at retirement.

mem_load_uops_retired.l1_hit
This is a precise version (that is, uses PEBS) of the event that
counts retired load uops which data source were hits in the
nearest-level (L1) cache. Note: Only two data-sources of L1/FB are
applicable for AVX-256bit even though the corresponding AVX load
could be serviced by a deeper level in the memory hierarchy. Data
source is reported for the Low-half load. This event also counts SW
prefetches independent of the actual data source.

mem_load_uops_retired.l2_hit
This is a precise version (that is, uses PEBS) of the event that
counts retired load uops which data sources were hits in the mid-
level (L2) cache.

The following errata may apply to this: BDM35

mem_load_uops_retired.l3_hit
This is a precise version (that is, uses PEBS) of the event that
counts retired load uops which data sources were data hits in the
last-level (L3) cache without snoops required.

The following errata may apply to this: BDM100

mem_load_uops_retired.l1_miss
This is a precise version (that is, uses PEBS) of the event that
counts retired load uops which data sources were misses in the
nearest-level (L1) cache. Counting excludes unknown and UC data
source.

mem_load_uops_retired.l2_miss
This is a precise version (that is, uses PEBS) of the event that
counts retired load uops which data sources were misses in the mid-
level (L2) cache. Counting excludes unknown and UC data source.

mem_load_uops_retired.l3_miss
Miss in last-level (L3) cache. Excludes Unknown data-source.
(Precise Event - PEBS).

The following errata may apply to this: BDM100, BDE70

mem_load_uops_retired.hit_lfb
This is a precise version (that is, uses PEBS) of the event that
counts retired load uops which data sources were load uops missed
L1 but hit a fill buffer due to a preceding miss to the same cache
line with the data not ready. Note: Only two data-sources of L1/FB
are applicable for AVX-256bit even though the corresponding AVX
load could be serviced by a deeper level in the memory hierarchy.
Data source is reported for the Low-half load.

mem_load_uops_l3_hit_retired.xsnp_miss
This is a precise version (that is, uses PEBS) of the event that
counts retired load uops which data sources were L3 Hit and a
cross-core snoop missed in the on-pkg core cache.

The following errata may apply to this: BDM100

mem_load_uops_l3_hit_retired.xsnp_hit
This is a precise version (that is, uses PEBS) of the event that
counts retired load uops which data sources were L3 hit and a
cross-core snoop hit in the on-pkg core cache.

The following errata may apply to this: BDM100

mem_load_uops_l3_hit_retired.xsnp_hitm
This is a precise version (that is, uses PEBS) of the event that
counts retired load uops which data sources were HitM responses
from a core on same socket (shared L3).

The following errata may apply to this: BDM100

mem_load_uops_l3_hit_retired.xsnp_none
This is a precise version (that is, uses PEBS) of the event that
counts retired load uops which data sources were hits in the last-
level (L3) cache without snoops required.

The following errata may apply to this: BDM100

mem_load_uops_l3_miss_retired.local_dram
This event counts retired load uops where the data came from local
DRAM. This does not include hardware prefetches. This is a precise
event.

The following errata may apply to this: BDE70, BDM100

mem_load_uops_l3_miss_retired.remote_dram
Retired load uop whose Data Source was: remote DRAM either Snoop
not needed or Snoop Miss (RspI) (Precise Event)

The following errata may apply to this: BDE70

mem_load_uops_l3_miss_retired.remote_hitm
Retired load uop whose Data Source was: Remote cache HITM (Precise
Event)

The following errata may apply to this: BDE70

mem_load_uops_l3_miss_retired.remote_fwd
Retired load uop whose Data Source was: forwarded from remote cache
(Precise Event)

The following errata may apply to this: BDE70

baclears.any
Counts the total number when the front end is resteered, mainly
when the BPU cannot provide a correct prediction and this is
corrected by other branch handling mechanisms at the front end.

l2_trans.demand_data_rd
This event counts Demand Data Read requests that access L2 cache,
including rejects.

l2_trans.rfo
This event counts Read for Ownership (RFO) requests that access L2
cache.

l2_trans.code_rd
This event counts the number of L2 cache accesses when fetching
instructions.

l2_trans.all_pf
This event counts L2 or L3 HW prefetches that access L2 cache
including rejects.

l2_trans.l1d_wb
This event counts L1D writebacks that access L2 cache.

l2_trans.l2_fill
This event counts L2 fill requests that access L2 cache.

l2_trans.l2_wb
This event counts L2 writebacks that access L2 cache.

l2_trans.all_requests
This event counts transactions that access the L2 pipe including
snoops, pagewalks, and so on.

l2_lines_in.i
This event counts the number of L2 cache lines in the Invalidate
state filling the L2. Counting does not cover rejects.

l2_lines_in.s
This event counts the number of L2 cache lines in the Shared state
filling the L2. Counting does not cover rejects.

l2_lines_in.e
This event counts the number of L2 cache lines in the Exclusive
state filling the L2. Counting does not cover rejects.

l2_lines_in.all
This event counts the number of L2 cache lines filling the L2.
Counting does not cover rejects.

l2_lines_out.demand_clean
Clean L2 cache lines evicted by demand.

sq_misc.split_lock
This event counts the number of split locks in the super queue.

NAME

DESCRIPTION

SEE ALSO