xref: /freebsd/lib/libpmc/pmc.sandybridgexeon.3 (revision d6b92ffa)

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.Dd October 18, 2012
.Dt PMC.SANDYBRIDGEXEON 3
.Os
.Sh NAME
.Nm pmc.sandybridgexeon
.Nd measurement events for
.Tn Intel
.Tn Sandy Bridge Xeon
family CPUs
.Sh LIBRARY
.Lb libpmc
.Sh SYNOPSIS
.In pmc.h
.Sh DESCRIPTION
.Tn Intel
.Tn "Sandy Bridge Xeon"
CPUs contain PMCs conforming to version 2 of the
.Tn Intel
performance measurement architecture.
These CPUs may contain up to two classes of PMCs:
.Bl -tag -width "Li PMC_CLASS_IAP"
.It Li PMC_CLASS_IAF
Fixed-function counters that count only one hardware event per counter.
.It Li PMC_CLASS_IAP
Programmable counters that may be configured to count one of a defined
set of hardware events.
.El
.Pp
The number of PMCs available in each class and their widths need to be
determined at run time by calling
.Xr pmc_cpuinfo 3 .
.Pp
Intel Sandy Bridge Xeon PMCs are documented in
.Rs
.%B "Intel(R) 64 and IA-32 Architectures Software Developer's Manual"
.%T "Volume 3B: System Programming Guide, Part 2"
.%N "Order Number: 253669-043US"
.%D August 2012
.%Q "Intel Corporation"
.Re
.Ss SANDYBRIDGE XEON FIXED FUNCTION PMCS
These PMCs and their supported events are documented in
.Xr pmc.iaf 3 .
.Ss SANDYBRIDGE XEON PROGRAMMABLE PMCS
The programmable PMCs support the following capabilities:
.Bl -column "PMC_CAP_INTERRUPT" "Support"
.It Em Capability Ta Em Support
.It PMC_CAP_CASCADE Ta \&No
.It PMC_CAP_EDGE Ta Yes
.It PMC_CAP_INTERRUPT Ta Yes
.It PMC_CAP_INVERT Ta Yes
.It PMC_CAP_READ Ta Yes
.It PMC_CAP_PRECISE Ta \&No
.It PMC_CAP_SYSTEM Ta Yes
.It PMC_CAP_TAGGING Ta \&No
.It PMC_CAP_THRESHOLD Ta Yes
.It PMC_CAP_USER Ta Yes
.It PMC_CAP_WRITE Ta Yes
.El
.Ss Event Qualifiers
Event specifiers for these PMCs support the following common
qualifiers:
.Bl -tag -width indent
.It Li rsp= Ns Ar value
Configure the Off-core Response bits.
.Bl -tag -width indent
.It Li REQ_DMND_DATA_RD
Counts the number of demand and DCU prefetch data reads of full and partial
cachelines as well as demand data page table entry cacheline reads. Does not
count L2 data read prefetches or instruction fetches.
.It Li REQ_DMND_RFO
Counts the number of demand and DCU prefetch reads for ownership (RFO)
requests generated by a write to data cacheline. Does not count L2 RFO
prefetches.
.It Li REQ_DMND_IFETCH
Counts the number of demand and DCU prefetch instruction cacheline reads.
Does not count L2 code read prefetches.
.It Li REQ_WB
Counts the number of writeback (modified to exclusive) transactions.
.It Li REQ_PF_DATA_RD
Counts the number of data cacheline reads generated by L2 prefetchers.
.It Li REQ_PF_RFO
Counts the number of RFO requests generated by L2 prefetchers.
.It Li REQ_PF_IFETCH
Counts the number of code reads generated by L2 prefetchers.
.It Li REQ_PF_LLC_DATA_RD
L2 prefetcher to L3 for loads.
.It Li REQ_PF_LLC_RFO
RFO requests generated by L2 prefetcher
.It Li REQ_PF_LLC_IFETCH
L2 prefetcher to L3 for instruction fetches.
.It Li REQ_BUS_LOCKS
Bus lock and split lock requests.
.It Li REQ_STRM_ST
Streaming store requests.
.It Li REQ_OTHER
Any other request that crosses IDI, including I/O.
.It Li RES_ANY
Catch all value for any response types.
.It Li RES_SUPPLIER_NO_SUPP
No Supplier Information available.
.It Li RES_SUPPLIER_LLC_HITM
M-state initial lookup stat in L3.
.It Li RES_SUPPLIER_LLC_HITE
E-state.
.It Li RES_SUPPLIER_LLC_HITS
S-state.
.It Li RES_SUPPLIER_LLC_HITF
F-state.
.It Li RES_SUPPLIER_LOCAL
Local DRAM Controller.
.It Li RES_SNOOP_SNP_NONE
No details on snoop-related information.
.It Li RES_SNOOP_SNP_NO_NEEDED
No snoop was needed to satisfy the request.
.It Li RES_SNOOP_SNP_MISS
A snoop was needed and it missed all snooped caches:
-For LLC Hit, ReslHitl was returned by all cores
-For LLC Miss, Rspl was returned by all sockets and data was returned from
DRAM.
.It Li RES_SNOOP_HIT_NO_FWD
A snoop was needed and it hits in at least one snooped cache. Hit denotes a
cache-line was valid before snoop effect. This includes:
-Snoop Hit w/ Invalidation (LLC Hit, RFO)
-Snoop Hit, Left Shared (LLC Hit/Miss, IFetch/Data_RD)
-Snoop Hit w/ Invalidation and No Forward (LLC Miss, RFO Hit S)
In the LLC Miss case, data is returned from DRAM.
.It Li RES_SNOOP_HIT_FWD
A snoop was needed and data was forwarded from a remote socket.
This includes:
-Snoop Forward Clean, Left Shared (LLC Hit/Miss, IFetch/Data_RD/RFT).
.It Li RES_SNOOP_HITM
A snoop was needed and it HitM-ed in local or remote cache. HitM denotes a
cache-line was in modified state before effect as a results of snoop. This
includes:
-Snoop HitM w/ WB (LLC miss, IFetch/Data_RD)
-Snoop Forward Modified w/ Invalidation (LLC Hit/Miss, RFO)
-Snoop MtoS (LLC Hit, IFetch/Data_RD).
.It Li RES_NON_DRAM
Target was non-DRAM system address. This includes MMIO transactions.
.El
.It Li cmask= Ns Ar value
Configure the PMC to increment only if the number of configured
events measured in a cycle is greater than or equal to
.Ar value .
.It Li edge
Configure the PMC to count the number of de-asserted to asserted
transitions of the conditions expressed by the other qualifiers.
If specified, the counter will increment only once whenever a
condition becomes true, irrespective of the number of clocks during
which the condition remains true.
.It Li inv
Invert the sense of comparison when the
.Dq Li cmask
qualifier is present, making the counter increment when the number of
events per cycle is less than the value specified by the
.Dq Li cmask
qualifier.
.It Li os
Configure the PMC to count events happening at processor privilege
level 0.
.It Li usr
Configure the PMC to count events occurring at privilege levels 1, 2
or 3.
.El
.Pp
If neither of the
.Dq Li os
or
.Dq Li usr
qualifiers are specified, the default is to enable both.
.Ss Event Specifiers (Programmable PMCs)
Sandy Bridge Xeon programmable PMCs support the following events:
.Bl -tag -width indent
.It Li LD_BLOCKS.DATA_UNKNOWN
.Pq Event 03H , Umask 01H
blocked loads due to store buffer blocks with unknown data.
.It Li LD_BLOCKS.STORE_FORWARD
.Pq Event 03H , Umask 02H
loads blocked by overlapping with store buffer that cannot
be forwarded .
.It Li LD_BLOCKS.NO_SR
.Pq Event 03H , Umask 08H
# of Split loads blocked due to resource not available.
.It Li LD_BLOCKS.ALL_BLOCK
.Pq Event 03H , Umask 10H
Number of cases where any load is blocked but has no
DCU miss.
.It Li MISALIGN_MEM_REF.LOADS
.Pq Event 05H , Umask 01H
Speculative cache-line split load uops dispatched to
L1D.
.It Li MISALIGN_MEM_REF.STORES
.Pq Event 05H , Umask 02H
Speculative cache-line split Store- address uops
dispatched to L1D.
.It Li LD_BLOCKS_PARTIAL.ADDRESS_ALIAS
.Pq Event 07H , Umask 01H
False dependencies in MOB due to partial compare on
address.
.It Li LD_BLOCKS_PARTIAL.ALL_STALL_BLOCK
.Pq Event 07H , Umask 08H
The number of times that load operations are temporarily
blocked because of older stores, with addresses that are
not yet known.  A load operation may incur more than one
block of this type.
.It Li TLB_LOAD_MISSES.MISS_CAUSES_A_WALK
.Pq Event 08H , Umask 01H
Misses in all TLB levels that cause a page walk of any
page size.
.It Li TLB_LOAD_MISSES.WALK_COMPLETED
.Pq Event 08H , Umask 02H
Misses in all TLB levels that caused page walk completed
of any size.
.It Li DTLB_LOAD_MISSES.WALK_DURATION
.Pq Event 08H , Umask 04H
Cycle PMH is busy with a walk.
.It Li DTLB_LOAD_MISSES.STLB_HIT
.Pq Event 08H , Umask 10H
Number of cache load STLB hits. No page walk.
.It Li INT_MISC.RECOVERY_CYCLES
.Pq Event 0DH , Umask 03H
Cycles waiting to recover after Machine Clears or EClear.
Set Cmask= 1.
.It Li INT_MISC.RAT_STALL_CYCLES
.Pq Event 0DH , Umask 40H
Cycles RAT external stall is sent to IDQ for this thread.
.It Li UOPS_ISSUED.ANY
.Pq Event 0EH , Umask 01H
Increments each cycle the # of Uops issued by the
RAT to RS.
Set Cmask = 1, Inv = 1, Any= 1to count stalled cycles
of this core.
.It Li FP_COMP_OPS_EXE.X87
.Pq Event 10H , Umask 01H
Counts number of X87 uops executed.
.It Li FP_COMP_OPS_EXE.SSE_FP_PACKED_DOUBLE
.Pq Event 10H , Umask 10H
Counts number of SSE* double precision FP packed
uops executed.
.It Li FP_COMP_OPS_EXE.SSE_FP_SCALAR_SINGLE
.Pq Event 10H , Umask 20H
Counts number of SSE* single precision FP scalar
uops executed.
.It Li FP_COMP_OPS_EXE.SSE_PACKED_SINGLE
.Pq Event 10H , Umask 40H
Counts number of SSE* single precision FP packed
uops executed.
.It Li FP_COMP_OPS_EXE.SSE_SCALAR_DOUBLE
.Pq Event 10H , Umask 80H
Counts number of SSE* double precision FP scalar
uops executed.
.It Li SIMD_FP_256.PACKED_SINGLE
.Pq Event 11H , Umask 01H
Counts 256-bit packed single-precision floating-
point instructions.
.It Li SIMD_FP_256.PACKED_DOUBLE
.Pq Event 11H , Umask 02H
Counts 256-bit packed double-precision floating-
point instructions.
.It Li ARITH.FPU_DIV_ACTIVE
.Pq Event 14H , Umask 01H
Cycles that the divider is active, includes INT and FP.
Set 'edge =1, cmask=1' to count the number of
divides.
.It Li INSTS_WRITTEN_TO_IQ.INSTS
.Pq Event 17H , Umask 01H
Counts the number of instructions written into the
IQ every cycle.
.It Li L2_RQSTS.DEMAND_DATA_RD_HIT
.Pq Event 24H , Umask 01H
Demand Data Read requests that hit L2 cache.
.It Li L2_RQSTS.ALL_DEMAND_DATA_RD
.Pq Event 24H , Umask 03H
Counts any demand and L1 HW prefetch data load
requests to L2.
.It Li L2_RQSTS.RFO_HITS
.Pq Event 24H , Umask 04H
Counts the number of store RFO requests that
hit the L2 cache.
.It Li L2_RQSTS.RFO_MISS
.Pq Event 24H , Umask 08H
Counts the number of store RFO requests that
miss the L2 cache.
.It Li L2_RQSTS.ALL_RFO
.Pq Event 24H , Umask 0CH
Counts all L2 store RFO requests.
.It Li L2_RQSTS.CODE_RD_HIT
.Pq Event 24H , Umask 10H
Number of instruction fetches that hit the L2
cache.
.It Li L2_RQSTS.CODE_RD_MISS
.Pq Event 24H , Umask 20H
Number of instruction fetches that missed the L2
cache.
.It Li L2_RQSTS.ALL_CODE_RD
.Pq Event 24H , Umask 30H
Counts all L2 code requests.
.It Li L2_RQSTS.PF_HIT
.Pq Event 24H , Umask 40H
Requests from L2 Hardware prefetcher that hit L2.
.It Li L2_RQSTS.PF_MISS
.Pq Event 24H , Umask 80H
Requests from L2 Hardware prefetcher that missed
L2.
.It Li L2_RQSTS.ALL_PF
.Pq Event 24H , Umask C0H
Any requests from L2 Hardware prefetchers.
.It Li L2_STORE_LOCK_RQSTS.MISS
.Pq Event 27H , Umask 01H
ROs that miss cache lines.
.It Li L2_STORE_LOCK_RQSTS.HIT_E
.Pq Event 27H , Umask 04H
RFOs that hit cache lines in E state.
.It Li L2_STORE_LOCK_RQSTS.HIT_M
.Pq Event 27H , Umask 08H
RFOs that hit cache lines in M state.
.It Li L2_STORE_LOCK_RQSTS.ALL
.Pq Event 27H , Umask 0FH
RFOs that access cache lines in any state.
.It Li L2_L1D_WB_RQSTS.MISS
.Pq Event 28H , Umask 01H
Not rejected writebacks from L1D to L2 cache lines
that missed L2.
.It Li L2_L1D_WB_RQSTS.HIT_S
.Pq Event 28H , Umask 02H
Not rejected writebacks from L1D to L2 cache lines
in S state.
.It Li L2_L1D_WB_RQSTS.HIT_E
.Pq Event 28H , Umask 04H
Not rejected writebacks from L1D to L2 cache lines
in E state.
.It Li L2_L1D_WB_RQSTS.HIT_M
.Pq Event 28H , Umask 08H
Not rejected writebacks from L1D to L2 cache lines
in M state.
.It Li L2_L1D_WB_RQSTS.ALL
.Pq Event 28H , Umask 0FH
Not rejected writebacks from L1D to L2 cache.
.It Li LONGEST_LAT_CACHE.REFERENCE
.Pq Event 2EH , Umask 4FH
This event counts requests originating from the
core that reference
a cache line in the last level cache.
.It Li LONGEST_LAT_CACHE.MISS
.Pq Event 2EH , Umask 41H
This event counts each cache miss condition for
references to the last level cache.
.It Li CPU_CLK_UNHALTED.THREAD_P
.Pq Event 3CH , Umask 00H
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.
.It Li CPU_CLK_THREAD_UNHALTED.REF_XCLK
.Pq Event 3CH , Umask 01H
Increments at the frequency of XCLK (100 MHz)
when not halted.
.It Li L1D_PEND_MISS.PENDING
.Pq Event 48H , Umask 01H
Increments the number of outstanding L1D misses
every cycle.
Set Cmaks = 1 and Edge =1 to count occurrences.
.It Li DTLB_STORE_MISSES.MISS_CAUSES_A_WALK
.Pq Event 49H , Umask 01H
Miss in all TLB levels causes an page walk of
any page size (4K/2M/4M/1G).
.It Li DTLB_STORE_MISSES.WALK_COMPLETED
.Pq Event 49H , Umask 02H
Miss in all TLB levels causes a page walk that
completes of any page size (4K/2M/4M/1G).
.It Li DTLB_STORE_MISSES.WALK_DURATION
.Pq Event 49H , Umask 04H
Cycles PMH is busy with this walk.
.It Li DTLB_STORE_MISSES.STLB_HIT
.Pq Event 49H , Umask 10H
Store operations that miss the first TLB level
but hit the second and do not cause page walks.
.It Li LOAD_HIT_PRE.SW_PF
.Pq Event 4CH , Umask 01H
Not SW-prefetch load dispatches that hit fill
buffer allocated for S/W prefetch.
.It Li LOAD_HIT_PER.HW_PF
.Pq Event 4CH , Umask 02H
Not SW-prefetch load dispatches that hit fill
buffer allocated for H/W prefetch.
.It Li HW_PRE_REQ.DL1_MISS
.Pq Event 4EH , Umask 02H
Hardware Prefetch requests that miss the L1D
cache. A request is being counted each time
it access the cache & miss it, including if
a block is applicable or if hit the Fill
Buffer for example.
.It Li L1D.REPLACEMENT
.Pq Event 51H , Umask 01H
Counts the number of lines brought into the
L1 data cache.
.It Li L1D.ALLOCATED_IN_M
.Pq Event 51H , Umask 02H
Counts the number of allocations of modified
L1D cache lines.
.It Li L1D.EVICTION
.Pq Event 51H , Umask 04H
Counts the number of modified lines evicted
from the L1 data cache due to replacement.
.It Li L1D.ALL_M_REPLACEMENT
.Pq Event 51H , Umask 08H
Cache lines in M state evicted out of L1D due
to Snoop HitM or dirty line replacement.
.It Li PARTIAL_RAT_STALLS.FLAGS_MERGE_UOP
.Pq Event 59H , Umask 0CH
Increments the number of flags-merge uops in
flight each cycle.
Set Cmask = 1 to count cycles.
.It Li PARTIAL_RAT_STALLS.SLOW_LEA_WINDOW
.Pq Event 59H , Umask 0FH
Cycles with at least one slow LEA uop allocated.
.It Li PARTIAL_RAT_STALLS.MUL_SINGLE_UOP
.Pq Event 59H , Umask 40H
Number of Multiply packed/scalar single precision
uops allocated.
.It Li RESOURCE_STALLS2.ALL_FL_EMPTY
.Pq Event 5BH , Umask 0CH
Cycles stalled due to free list empty.
.It Li RESOURCE_STALLS2.ALL_PRF_CONTROL
.Pq Event 5BH , Umask 0FH
Cycles stalled due to control structures full for
physical registers.
.It Li RESOURCE_STALLS2.BOB_FULL
.Pq Event 5BH , Umask 40H
Cycles Allocator is stalled due Branch Order Buffer.
.It Li RESOURCE_STALLS2.OOO_RSRC
.Pq Event 5BH , Umask 4FH
Cycles stalled due to out of order resources full.
.It Li CPL_CYCLES.RING0
.Pq Event 5CH , Umask 01H
Unhalted core cycles when the thread is in ring 0.
.It Li CPL_CYCLES.RING123
.Pq Event 5CH , Umask 02H
Unhalted core cycles when the thread is not in ring
0.
.It Li RS_EVENTS.EMPTY_CYCLES
.Pq Event 5EH , Umask 01H
Cycles the RS is empty for the thread.
.It Li OFFCORE_REQUESTS_OUTSTANDING.DEMAND_DATA_RD
.Pq Event 60H , Umask 01H
Offcore outstanding Demand Data Read
transactions in SQ to uncore. Set Cmask=1 to count
cycles.
.It Li OFFCORE_REQUESTS_OUTSTANDING.DEMAND_RFO
.Pq Event 60H , Umask 04H
Offcore outstanding RFO store transactions in SQ to
uncore. Set Cmask=1 to count cycles.
.It Li OFFCORE_REQUESTS_OUTSTANDING.ALL_DATA_RD
.Pq Event 60H , Umask 08H
Offcore outstanding cacheable data read
transactions in SQ to uncore. Set Cmask=1 to count
cycles.
.It Li LOCK_CYCLES.SPLIT_LOCK_UC_LOCK_DURATION
.Pq Event 63H , Umask 01H
Cycles in which the L1D and L2 are locked, due to a
UC lock or split lock.
.It Li LOCK_CYCLES.CACHE_LOCK_DURATION
.Pq Event 63H , Umask 02H
Cycles in which the L1D is locked.
.It Li IDQ.EMPTY
.Pq Event 79H , Umask 02H
Counts cycles the IDQ is empty.
.It Li IDQ.MITE_UOPS
.Pq Event 79H , Umask 04H
Increment each cycle # of uops delivered to IDQ
from MITE path.
Set Cmask = 1 to count cycles.
.It Li IDQ.DSB_UOPS
.Pq Event 79H , Umask 08H
Increment each cycle. # of uops delivered to IDQ
from DSB path.
Set Cmask = 1 to count cycles.
.It Li IDQ.MS_DSB_UOPS
.Pq Event 79H , Umask 10H
Increment each cycle # of uops delivered to IDQ
when MS busy by DSB. Set Cmask = 1 to count
cycles MS is busy. Set Cmask=1 and Edge =1 to
count MS activations.
.It Li IDQ.MS_MITE_UOPS
.Pq Event 79H , Umask 20H
Increment each cycle # of uops delivered to IDQ
when MS is busy by MITE. Set Cmask = 1 to count
cycles.
.It Li IDQ.MS_UOPS
.Pq Event 79H , Umask 30H
Increment each cycle # of uops delivered to IDQ
from MS by either DSB or MITE. Set Cmask = 1 to
count cycles.
.It Li ICACHE.MISSES
.Pq Event 80H , Umask 02H
Number of Instruction Cache, Streaming Buffer and
Victim Cache Misses. Includes UC accesses.
.It Li ITLB_MISSES.MISS_CAUSES_A_WALK
.Pq Event 85H , Umask 01H
Misses in all ITLB levels that cause page walks.
.It Li ITLB_MISSES.WALK_COMPLETED
.Pq Event 85H , Umask 02H
Misses in all ITLB levels that cause completed page
walks.
.It Li ITLB_MISSES.WALK_DURATION
.Pq Event 85H , Umask 04H
Cycle PMH is busy with a walk.
.It Li ITLB_MISSES.STLB_HIT
.Pq Event 85H , Umask 10H
Number of cache load STLB hits. No page walk.
.It Li ILD_STALL.LCP
.Pq Event 87H , Umask 01H
Stalls caused by changing prefix length of the
instruction.
.It Li ILD_STALL.IQ_FULL
.Pq Event 87H , Umask 04H
Stall cycles due to IQ is full.
.It Li BR_INST_EXEC.NONTAKEN_COND
.Pq Event 88H , Umask 41H
Count conditional near branch instructions that were executed (but not
necessarily retired) and not taken.
.It Li BR_INST_EXEC.TAKEN_COND
.Pq Event 88H , Umask 81H
Count conditional near branch instructions that were executed (but not
necessarily retired) and taken.
.It Li BR_INST_EXEC.DIRECT_JMP
.Pq Event 88H , Umask 82H
Count all unconditional near branch instructions excluding calls and
indirect branches.
.It Li BR_INST_EXEC.INDIRECT_JMP_NON_CALL_RET
.Pq Event 88H , Umask 84H
Count executed indirect near branch instructions that are not calls nor
returns.
.It Li BR_INST_EXEC.RETURN_NEAR
.Pq Event 88H , Umask 88H
Count indirect near branches that have a return mnemonic.
.It Li BR_INST_EXEC.DIRECT_NEAR_CALL
.Pq Event 88H , Umask 90H
Count unconditional near call branch instructions, excluding non call
branch, executed.
.It Li BR_INST_EXEC.INDIRECT_NEAR_CALL
.Pq Event 88H , Umask A0H
Count indirect near calls, including both register and memory indirect,
executed.
.It Li BR_INST_EXEC.ALL_BRANCHES
.Pq Event 88H , Umask FFH
Counts all near executed branches (not necessarily retired).
.It Li BR_MISP_EXEC.NONTAKEN_COND
.Pq Event 89H , Umask 41H
Count conditional near branch instructions mispredicted as nontaken.
.It Li BR_MISP_EXEC.TAKEN_COND
.Pq Event 89H , Umask 81H
Count conditional near branch instructions mispredicted as taken.
.It Li BR_MISP_EXEC.INDIRECT_JMP_NON_CALL_RET
.Pq Event 89H , Umask 84H
Count mispredicted indirect near branch instructions that are not calls
nor returns.
.It Li BR_MISP_EXEC.RETURN_NEAR
.Pq Event 89H , Umask 88H
Count mispredicted indirect near branches that have a return mnemonic.
.It Li BR_MISP_EXEC.DIRECT_NEAR_CALL
.Pq Event 89H , Umask 90H
Count mispredicted unconditional near call branch instructions, excluding
non call branch, executed.
.It Li BR_MISP_EXEC.INDIRECT_NEAR_CALL
.Pq Event 89H , Umask A0H
Count mispredicted indirect near calls, including both register and memory
indirect, executed.
.It Li BR_MISP_EXEC.ALL_BRANCHES
.Pq Event 89H , Umask FFH
Counts all mispredicted near executed branches (not necessarily retired).
.It Li IDQ_UOPS_NOT_DELIVERED.CORE
.Pq Event 9CH , Umask 01H
Count number of non-delivered uops to RAT per
thread.
.It Li UOPS_DISPATCHED_PORT.PORT_0
.Pq Event A1H , Umask 01H
Cycles which a Uop is dispatched on port 0.
.It Li UOPS_DISPATCHED_PORT.PORT_1
.Pq Event A1H , Umask 02H
Cycles which a Uop is dispatched on port 1.
.It Li UOPS_DISPATCHED_PORT.PORT_2_LD
.Pq Event A1H , Umask 04H
Cycles which a load uop is dispatched on port 2.
.It Li UOPS_DISPATCHED_PORT.PORT_2_STA
.Pq Event A1H , Umask 08H
Cycles which a store address uop is dispatched on
port 2.
.It Li UOPS_DISPATCHED_PORT.PORT_2
.Pq Event A1H , Umask 0CH
Cycles which a Uop is dispatched on port 2.
.It Li UOPS_DISPATCHED_PORT.PORT_3_LD
.Pq Event A1H , Umask 10H
Cycles which a load uop is dispatched on port 3.
.It Li UOPS_DISPATCHED_PORT.PORT_3_STA
.Pq Event A1H , Umask 20H
Cycles which a store address uop is dispatched on
port 3.
.It Li UOPS_DISPATCHED_PORT.PORT_3
.Pq Event A1H , Umask 30H
Cycles which a Uop is dispatched on port 3.
.It Li UOPS_DISPATCHED_PORT.PORT_4
.Pq Event A1H , Umask 40H
Cycles which a Uop is dispatched on port 4.
.It Li UOPS_DISPATCHED_PORT.PORT_5
.Pq Event A1H , Umask 80H
Cycles which a Uop is dispatched on port 5.
.It Li RESOURCE_STALLS.ANY
.Pq Event A2H , Umask 01H
Cycles Allocation is stalled due to Resource Related
reason.
.It Li RESOURCE_STALLS.LB
.Pq Event A2H , Umask 01H
Counts the cycles of stall due to lack of load buffers.
.It Li RESOURCE_STALLS.RS
.Pq Event A2H , Umask 04H
Cycles stalled due to no eligible RS entry available.
.It Li RESOURCE_STALLS.SB
.Pq Event A2H , Umask 08H
Cycles stalled due to no store buffers available. (not
including draining form sync).
.It Li RESOURCE_STALLS.ROB
.Pq Event A2H , Umask 10H
Cycles stalled due to re-order buffer full.
.It Li RESOURCE_STALLS.FCSW
.Pq Event A2H , Umask 20H
Cycles stalled due to writing the FPU control word.
.It Li RESOURCE_STALLS.MXCSR
.Pq Event A2H , Umask 40H
Cycles stalled due to the MXCSR register rename
occurring to close to a previous MXCSR rename.
.It Li RESOURCE_STALLS.OTHER
.Pq Event A2H , Umask 80H
Cycles stalled while execution was stalled due to
other resource issues.
.It Li CYCLE_ACTIVITY.CYCLES_L2_PENDING
.Pq Event A3H , Umask 01H
Cycles with pending L2 miss loads. Set AnyThread
to count per core.
.It Li CYCLE_ACTIVITY.CYCLES_L1D_PENDING
.Pq Event A3H , Umask 02H
Cycles with pending L1 cache miss loads.Set
AnyThread to count per core.
.It Li CYCLE_ACTIVITY.CYCLES_NO_DISPATCH
.Pq Event A3H , Umask 04H
Cycles of dispatch stalls. Set AnyThread to count per
core.
.It Li DSB2MITE_SWITCHES.COUNT
.Pq Event ABH , Umask 01H
Number of DSB to MITE switches.
.It Li DSB2MITE_SWITCHES.PENALTY_CYCLES
.Pq Event ABH , Umask 02H
Cycles DSB to MITE switches caused delay.
.It Li DSB_FILL.OTHER_CANCEL
.Pq Event ACH , Umask 02H
Cases of cancelling valid DSB fill not because of
exceeding way limit.
.It Li DSB_FILL.EXCEED_DSB_LINES
.Pq Event ACH , Umask 08H
DSB Fill encountered > 3 DSB lines.
.It Li DSB_FILL.ALL_CANCEL
.Pq Event ACH , Umask 0AH
Cases of cancelling valid Decode Stream Buffer
(DSB) fill not because of exceeding way limit.
.It Li ITLB.ITLB_FLUSH
.Pq Event AEH , Umask 01H
Counts the number of ITLB flushes, includes
4k/2M/4M pages.
.It Li OFFCORE_REQUESTS.DEMAND_DATA_RD
.Pq Event B0H , Umask 01H
Demand data read requests sent to uncore.
.It Li OFFCORE_REQUESTS.DEMAND_RFO
.Pq Event B0H , Umask 04H
Demand RFO read requests sent to uncore, including
regular RFOs, locks, ItoM.
.It Li OFFCORE_REQUESTS.ALL_DATA_RD
.Pq Event B0H , Umask 08H
Data read requests sent to uncore (demand and
prefetch).
.It Li UOPS_DISPATCHED.THREAD
.Pq Event B1H , Umask 01H
Counts total number of uops to be dispatched per-
thread each cycle. Set Cmask = 1, INV =1 to count
stall cycles.
.It Li UOPS_DISPATCHED.CORE
.Pq Event B1H , Umask 02H
Counts total number of uops to be dispatched per-
core each cycle.
.It Li OFFCORE_REQUESTS_BUFFER.SQ_FULL
.Pq Event B2H , Umask 01H
Offcore requests buffer cannot take more entries
for this thread core.
.It Li AGU_BYPASS_CANCEL.COUNT
.Pq Event B6H , Umask 01H
Counts executed load operations with all the
following traits: 1. addressing of the format [base +
offset], 2. the offset is between 1 and 2047, 3. the
address specified in the base register is in one page
and the address [base+offset] is in another page.
.It Li OFF_CORE_RESPONSE_0
.Pq Event B7H , Umask 01H
(Event B7H, Umask 01H) Off-core Response Performance
Monitoring; PMC0 only.  Requires programming MSR 01A6H
.It Li OFF_CORE_RESPONSE_1
.Pq Event BBH , Umask 01H
(Event BBH, Umask 01H) Off-core Response Performance
Monitoring; PMC3 only.  Requires programming MSR 01A7H
.It Li TLB_FLUSH.DTLB_THREAD
.Pq Event BDH , Umask 01H
DTLB flush attempts of the thread-specific entries.
.It Li TLB_FLUSH.STLB_ANY
.Pq Event BDH , Umask 20H
Count number of STLB flush attempts.
.It Li L1D_BLOCKS.BANK_CONFLICT_CYCLES
.Pq Event BFH , Umask 05H
Cycles when dispatched loads are cancelled due to
L1D bank conflicts with other load ports.
.It Li INST_RETIRED.ANY_P
.Pq Event C0H , Umask 00H
Number of instructions at retirement.
.It Li INST_RETIRED.ALL
.Pq Event C0H , Umask 01H
Precise instruction retired event with HW to reduce
effect of PEBS shadow in IP distribution.
.It Li OTHER_ASSISTS.ITLB_MISS_RETIRED
.Pq Event C1H , Umask 02H
Instructions that experienced an ITLB miss.
.It Li OTHER_ASSISTS.AVX_STORE
.Pq Event C1H , Umask 08H
Number of assists associated with 256-bit AVX
store operations.
.It Li OTHER_ASSISTS.AVX_TO_SSE
.Pq Event C1H , Umask 10H
Number of transitions from AVX-256 to legacy SSE
when penalty applicable.
.It Li OTHER_ASSISTS.SSE_TO_AVX
.Pq Event C1H , Umask 20H
Number of transitions from SSE to AVX-256 when
penalty applicable.
.It Li UOPS_RETIRED.ALL
.Pq Event C2H , Umask 01H
Counts the number of micro-ops retired, Use
cmask=1 and invert to count active cycles or stalled
cycles.
.It Li UOPS_RETIRED.RETIRE_SLOTS
.Pq Event C2H , Umask 02H
Counts the number of retirement slots used each
cycle.
.It Li MACHINE_CLEARS.MEMORY_ORDERING
.Pq Event C3H , Umask 02H
Counts the number of machine clears due to
memory order conflicts.
.It Li MACHINE_CLEARS.SMC
.Pq Event C3H , Umask 04H
Counts the number of times that a program writes
to a code section.
.It Li MACHINE_CLEARS.MASKMOV
.Pq Event C3H , Umask 20H
Counts the number of executed AVX masked load
operations that refer to an illegal address range
with the mask bits set to 0.
.It Li BR_INST_RETIRED.ALL_BRANCH
.Pq Event C4H , Umask 00H
Branch instructions at retirement.
.It Li BR_INST_RETIRED.CONDITIONAL
.Pq Event C4H , Umask 01H
Counts the number of conditional branch
instructions retired.
.It Li BR_INST_RETIRED.NEAR_CALL
.Pq Event C4H , Umask 02H
Direct and indirect near call instructions retired.
.It Li BR_INST_RETIRED.ALL_BRANCHES
.Pq Event C4H , Umask 04H
Counts the number of branch instructions retired.
.It Li BR_INST_RETIRED.NEAR_RETURN
.Pq Event C4H , Umask 08H
Counts the number of near return instructions
retired.
.It Li BR_INST_RETIRED.NOT_TAKEN
.Pq Event C4H , Umask 10H
Counts the number of not taken branch instructions
retired.
.It Li BR_INST_RETIRED.NEAR_TAKEN
.Pq Event C4H , Umask 20H
Number of near taken branches retired.
.It Li BR_INST_RETIRED.FAR_BRANCH
.Pq Event C4H , Umask 40H
Number of far branches retired.
.It Li BR_MISP_RETIRED.ALL_BRANCHES
.Pq Event C5H , Umask 00H
Mispredicted branch instructions at retirement.
.It Li BR_MISP_RETIRED.CONDITIONAL
.Pq Event C5H , Umask 01H
Mispredicted conditional branch instructions retired.
.It Li BR_MISP_RETIRED.NEAR_CALL
.Pq Event C5H , Umask 02H
Direct and indirect mispredicted near call
instructions retired.
.It Li BR_MISP_RETIRED.ALL_BRANCHES
.Pq Event C5H , Umask 04H
Mispredicted macro branch instructions retired.
.It Li BR_MISP_RETIRED.NOT_TAKEN
.Pq Event C5H , Umask 10H
Mispredicted not taken branch instructions retired.
.It Li BR_MISP_RETIRED.TAKEN
.Pq Event C5H , Umask 20H
Mispredicted taken branch instructions retired.
.It Li FP_ASSIST.X87_OUTPUT
.Pq Event CAH , Umask 02H
Number of X87 assists due to output value.
.It Li FP_ASSIST.X87_INPUT
.Pq Event CAH , Umask 04H
Number of X87 assists due to input value.
.It Li FP_ASSIST.SIMD_OUTPUT
.Pq Event CAH , Umask 08H
 Number of SIMD FP assists due to output values.
.It Li FP_ASSIST.SIMD_INPUT
.Pq Event CAH , Umask 10H
Number of SIMD FP assists due to input values.
.It Li FP_ASSIST.ANY 1EH
.Pq Event CAH , Umask
Cycles with any input/output SSE* or FP assists.
.It Li ROB_MISC_EVENTS.LBR_INSERTS
.Pq Event CCH , Umask 20H
Count cases of saving new LBR records by
hardware.
.It Li MEM_TRANS_RETIRED.LOAD_LATENCY
.Pq Event CDH , Umask 01H
Sample loads with specified latency threshold.
PMC3 only.
.It Li MEM_TRANS_RETIRED.PRECISE_STORE
.Pq Event CDH , Umask 02H
Sample stores and collect precise store operation
via PEBS record. PMC3 only.
.It Li MEM_UOP_RETIRED.LOADS
.Pq Event D0H , Umask 10H
Qualify retired memory uops that are loads.
Combine with umask 10H, 20H, 40H, 80H.
.It Li MEM_UOP_RETIRED.STORES
.Pq Event D0H , Umask 02H
Qualify retired memory uops that are stores.
Combine with umask 10H, 20H, 40H, 80H.
.It Li MEM_UOP_RETIRED.STLB_MISS
.Pq Event D0H , Umask
Qualify retired memory uops with STLB miss. Must
combine with umask 01H, 02H, to produce counts.
.It Li MEM_UOP_RETIRED.LOCK
.Pq Event D0H , Umask
Qualify retired memory uops with lock. Must
combine with umask 01H, 02H, to produce counts.
.It Li MEM_UOP_RETIRED.SPLIT
.Pq Event D0H , Umask
Qualify retired memory uops with line split. Must
combine with umask 01H, 02H, to produce counts.
.It Li MEM_UOP_RETIRED_ALL
.Pq Event D0H , Umask
Qualify any retired memory uops. Must combine
with umask 01H, 02H, to produce counts.
.It Li MEM_LOAD_UOPS_RETIRED.L1_HIT
.Pq Event D1H , Umask 01H
Retired load uops with L1 cache hits as data
sources.
.It Li MEM_LOAD_UOPS_RETIRED.L2_HIT
.Pq Event D1H , Umask 02H
Retired load uops with L2 cache hits as data
sources.
.It Li MEM_LOAD_UOPS_RETIRED.LLC_HIT
.Pq Event D1H , Umask 04H
Retired load uops which data sources were data hits
in LLC without snoops required.
.It Li MEM_LOAD_UOPS_RETIRED.LLC_MISS
.Pq Event D1H , Umask 20H
Retired load uops which data sources were data
missed LLC (excluding unknown data source).
.It Li MEM_LOAD_UOPS_RETIRED.HIT_LFB
.Pq Event D1H , Umask 40H
Retired load uops which data sources were load
uops missed L1 but hit FB due to preceding miss to
the same cache line with data not ready.
.It Li MEM_LOAD_UOPS_MISC_RETIRED.LLC_MISS
.Pq Event D4H , Umask 02H
Retired load uops with unknown information as data
source in cache serviced the load.
.It Li BACLEARS.ANY
.Pq Event E6H , Umask 01H
Counts the number of times the front end is re-
steered, mainly when the BPU cannot provide a
correct prediction and this is corrected by other
branch handling mechanisms at the front end.
.It Li L2_TRANS.DEMAND_DATA_RD
.Pq Event F0H , Umask 01H
Demand Data Read requests that access L2 cache.
.It Li L2_TRANS.RFO
.Pq Event F0H , Umask 02H
RFO requests that access L2 cache.
.It Li L2_TRANS.CODE_RD
.Pq Event F0H , Umask 04H
L2 cache accesses when fetching instructions.
.It Li L2_TRANS.ALL_PF
.Pq Event F0H , Umask 08H
L2 or LLC HW prefetches that access L2 cache.
.It Li L2_TRANS.L1D_WB
.Pq Event F0H , Umask 10H
L1D writebacks that access L2 cache.
.It Li L2_TRANS.L2_FILL
.Pq Event F0H , Umask 20H
L2 fill requests that access L2 cache.
.It Li L2_TRANS.L2_WB
.Pq Event F0H , Umask 40H
L2 writebacks that access L2 cache.
.It Li L2_TRANS.ALL_REQUESTS
.Pq Event F0H , Umask 80H
Transactions accessing L2 pipe.
.It Li L2_LINES_IN.I
.Pq Event F1H , Umask 01H
L2 cache lines in I state filling L2.
.It Li L2_LINES_IN.S
.Pq Event F1H , Umask 02H
L2 cache lines in S state filling L2.
.It Li L2_LINES_IN.E
.Pq Event F1H , Umask 04H
L2 cache lines in E state filling L2.
.It Li L2_LINES-IN.ALL
.Pq Event F1H , Umask 07H
L2 cache lines filling L2.
.It Li L2_LINES_OUT.DEMAND_CLEAN
.Pq Event F2H , Umask 01H
Clean L2 cache lines evicted by demand.
.It Li L2_LINES_OUT.DEMAND_DIRTY
.Pq Event F2H , Umask 02H
Dirty L2 cache lines evicted by demand.
.It Li L2_LINES_OUT.PF_CLEAN
.Pq Event F2H , Umask 04H
Clean L2 cache lines evicted by L2 prefetch.
.It Li L2_LINES_OUT.PF_DIRTY
.Pq Event F2H , Umask 08H
Dirty L2 cache lines evicted by L2 prefetch.
.It Li L2_LINES_OUT.DIRTY_ALL
.Pq Event F2H , Umask 0AH
Dirty L2 cache lines filling the L2.
.It Li SQ_MISC.SPLIT_LOCK
.Pq Event F4H , Umask 10H
Split locks in SQ.
.El
.Sh SEE ALSO
.Xr pmc 3 ,
.Xr pmc.atom 3 ,
.Xr pmc.core 3 ,
.Xr pmc.corei7 3 ,
.Xr pmc.corei7uc 3 ,
.Xr pmc.haswelluc 3 ,
.Xr pmc.iaf 3 ,
.Xr pmc.ivybridge 3 ,
.Xr pmc.ivybridgexeon 3 ,
.Xr pmc.k7 3 ,
.Xr pmc.k8 3 ,
.Xr pmc.p4 3 ,
.Xr pmc.p5 3 ,
.Xr pmc.p6 3 ,
.Xr pmc.sandybridge 3 ,
.Xr pmc.sandybridgeuc 3 ,
.Xr pmc.soft 3 ,
.Xr pmc.tsc 3 ,
.Xr pmc.ucf 3 ,
.Xr pmc.westmere 3 ,
.Xr pmc.westmereuc 3 ,
.Xr pmc_cpuinfo 3 ,
.Xr pmclog 3 ,
.Xr hwpmc 4
.Sh HISTORY
The
.Nm pmc
library first appeared in
.Fx 6.0 .
.Sh AUTHORS
.An -nosplit
The
.Lb libpmc
library was written by
.An Joseph Koshy Aq Mt jkoshy@FreeBSD.org .
The support for the Sandy Bridge Xeon
microarchitecture was written by
.An Hiren Panchasara Aq Mt hiren.panchasara@gmail.com .