Man

Command Section
PMC.SANDYBRIDGEXEON(3)                        FreeBSD Library Functions Manual

NAME
     pmc.sandybridgexeon - measurement events for Intel Sandy Bridge Xeon
     family CPUs

LIBRARY
     Performance Counters Library (libpmc, -lpmc)

SYNOPSIS
     #include <pmc.h>

DESCRIPTION
     Intel Sandy Bridge Xeon CPUs contain PMCs conforming to version 2 of the
     Intel performance measurement architecture.  These CPUs may contain up to
     two classes of PMCs:

     PMC_CLASS_IAF     Fixed-function counters that count only one hardware
                       event per counter.

     PMC_CLASS_IAP     Programmable counters that may be configured to count
                       one of a defined set of hardware events.

     The number of PMCs available in each class and their widths need to be
     determined at run time by calling pmc_cpuinfo(3).

     Intel Sandy Bridge Xeon PMCs are documented in Volume 3B: System
     Programming Guide, Part 2, Intel(R) 64 and IA-32 Architectures Software
     Developer's Manual, Order Number: 253669-043US, Intel Corporation, August
     2012.

   SANDYBRIDGE XEON FIXED FUNCTION PMCS
     These PMCs and their supported events are documented in pmc.iaf(3).

   SANDYBRIDGE XEON PROGRAMMABLE PMCS
     The programmable PMCs support the following capabilities:

     Capability           Support
     PMC_CAP_CASCADE      No
     PMC_CAP_EDGE         Yes
     PMC_CAP_INTERRUPT    Yes
     PMC_CAP_INVERT       Yes
     PMC_CAP_READ         Yes
     PMC_CAP_PRECISE      No
     PMC_CAP_SYSTEM       Yes
     PMC_CAP_TAGGING      No
     PMC_CAP_THRESHOLD    Yes
     PMC_CAP_USER         Yes
     PMC_CAP_WRITE        Yes

   Event Qualifiers
     Event specifiers for these PMCs support the following common qualifiers:

     rsp=value
             Configure the Off-core Response bits.

             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.

             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.

             REQ_DMND_IFETCH
                     Counts the number of demand and DCU prefetch instruction
                     cacheline reads.  Does not count L2 code read prefetches.

             REQ_WB  Counts the number of writeback (modified to exclusive)
                     transactions.

             REQ_PF_DATA_RD
                     Counts the number of data cacheline reads generated by L2
                     prefetchers.

             REQ_PF_RFO
                     Counts the number of RFO requests generated by L2
                     prefetchers.

             REQ_PF_IFETCH
                     Counts the number of code reads generated by L2
                     prefetchers.

             REQ_PF_LLC_DATA_RD
                     L2 prefetcher to L3 for loads.

             REQ_PF_LLC_RFO
                     RFO requests generated by L2 prefetcher

             REQ_PF_LLC_IFETCH
                     L2 prefetcher to L3 for instruction fetches.

             REQ_BUS_LOCKS
                     Bus lock and split lock requests.

             REQ_STRM_ST
                     Streaming store requests.

             REQ_OTHER
                     Any other request that crosses IDI, including I/O.

             RES_ANY
                     Catch all value for any response types.

             RES_SUPPLIER_NO_SUPP
                     No Supplier Information available.

             RES_SUPPLIER_LLC_HITM
                     M-state initial lookup stat in L3.

             RES_SUPPLIER_LLC_HITE
                     E-state.

             RES_SUPPLIER_LLC_HITS
                     S-state.

             RES_SUPPLIER_LLC_HITF
                     F-state.

             RES_SUPPLIER_LOCAL
                     Local DRAM Controller.

             RES_SNOOP_SNP_NONE
                     No details on snoop-related information.

             RES_SNOOP_SNP_NO_NEEDED
                     No snoop was needed to satisfy the request.

             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.

             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.

             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).

             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).

             RES_NON_DRAM
                     Target was non-DRAM system address. This includes MMIO
                     transactions.

     cmask=value
             Configure the PMC to increment only if the number of configured
             events measured in a cycle is greater than or equal to value.

     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.

     inv     Invert the sense of comparison when the ``cmask'' qualifier is
             present, making the counter increment when the number of events
             per cycle is less than the value specified by the ``cmask''
             qualifier.

     os      Configure the PMC to count events happening at processor
             privilege level 0.

     usr     Configure the PMC to count events occurring at privilege levels
             1, 2 or 3.

     If neither of the ``os'' or ``usr'' qualifiers are specified, the default
     is to enable both.

   Event Specifiers (Programmable PMCs)
     Sandy Bridge Xeon programmable PMCs support the following events:

     LD_BLOCKS.DATA_UNKNOWN
             (Event 03H, Umask 01H) blocked loads due to store buffer blocks
             with unknown data.

     LD_BLOCKS.STORE_FORWARD
             (Event 03H, Umask 02H) loads blocked by overlapping with store
             buffer that cannot be forwarded .

     LD_BLOCKS.NO_SR
             (Event 03H, Umask 08H) # of Split loads blocked due to resource
             not available.

     LD_BLOCKS.ALL_BLOCK
             (Event 03H, Umask 10H) Number of cases where any load is blocked
             but has no DCU miss.

     MISALIGN_MEM_REF.LOADS
             (Event 05H, Umask 01H) Speculative cache-line split load uops
             dispatched to L1D.

     MISALIGN_MEM_REF.STORES
             (Event 05H, Umask 02H) Speculative cache-line split Store-
             address uops dispatched to L1D.

     LD_BLOCKS_PARTIAL.ADDRESS_ALIAS
             (Event 07H, Umask 01H) False dependencies in MOB due to partial
             compare on address.

     LD_BLOCKS_PARTIAL.ALL_STALL_BLOCK
             (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.

     TLB_LOAD_MISSES.MISS_CAUSES_A_WALK
             (Event 08H, Umask 01H) Misses in all TLB levels that cause a page
             walk of any page size.

     TLB_LOAD_MISSES.WALK_COMPLETED
             (Event 08H, Umask 02H) Misses in all TLB levels that caused page
             walk completed of any size.

     DTLB_LOAD_MISSES.WALK_DURATION
             (Event 08H, Umask 04H) Cycle PMH is busy with a walk.

     DTLB_LOAD_MISSES.STLB_HIT
             (Event 08H, Umask 10H) Number of cache load STLB hits. No page
             walk.

     INT_MISC.RECOVERY_CYCLES
             (Event 0DH, Umask 03H) Cycles waiting to recover after Machine
             Clears or EClear.  Set Cmask= 1.

     INT_MISC.RAT_STALL_CYCLES
             (Event 0DH, Umask 40H) Cycles RAT external stall is sent to IDQ
             for this thread.

     UOPS_ISSUED.ANY
             (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.

     FP_COMP_OPS_EXE.X87
             (Event 10H, Umask 01H) Counts number of X87 uops executed.

     FP_COMP_OPS_EXE.SSE_FP_PACKED_DOUBLE
             (Event 10H, Umask 10H) Counts number of SSE* double precision FP
             packed uops executed.

     FP_COMP_OPS_EXE.SSE_FP_SCALAR_SINGLE
             (Event 10H, Umask 20H) Counts number of SSE* single precision FP
             scalar uops executed.

     FP_COMP_OPS_EXE.SSE_PACKED_SINGLE
             (Event 10H, Umask 40H) Counts number of SSE* single precision FP
             packed uops executed.

     FP_COMP_OPS_EXE.SSE_SCALAR_DOUBLE
             (Event 10H, Umask 80H) Counts number of SSE* double precision FP
             scalar uops executed.

     SIMD_FP_256.PACKED_SINGLE
             (Event 11H, Umask 01H) Counts 256-bit packed single-precision
             floating- point instructions.

     SIMD_FP_256.PACKED_DOUBLE
             (Event 11H, Umask 02H) Counts 256-bit packed double-precision
             floating- point instructions.

     ARITH.FPU_DIV_ACTIVE
             (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.

     INSTS_WRITTEN_TO_IQ.INSTS
             (Event 17H, Umask 01H) Counts the number of instructions written
             into the IQ every cycle.

     L2_RQSTS.DEMAND_DATA_RD_HIT
             (Event 24H, Umask 01H) Demand Data Read requests that hit L2
             cache.

     L2_RQSTS.ALL_DEMAND_DATA_RD
             (Event 24H, Umask 03H) Counts any demand and L1 HW prefetch data
             load requests to L2.

     L2_RQSTS.RFO_HITS
             (Event 24H, Umask 04H) Counts the number of store RFO requests
             that hit the L2 cache.

     L2_RQSTS.RFO_MISS
             (Event 24H, Umask 08H) Counts the number of store RFO requests
             that miss the L2 cache.

     L2_RQSTS.ALL_RFO
             (Event 24H, Umask 0CH) Counts all L2 store RFO requests.

     L2_RQSTS.CODE_RD_HIT
             (Event 24H, Umask 10H) Number of instruction fetches that hit the
             L2 cache.

     L2_RQSTS.CODE_RD_MISS
             (Event 24H, Umask 20H) Number of instruction fetches that missed
             the L2 cache.

     L2_RQSTS.ALL_CODE_RD
             (Event 24H, Umask 30H) Counts all L2 code requests.

     L2_RQSTS.PF_HIT
             (Event 24H, Umask 40H) Requests from L2 Hardware prefetcher that
             hit L2.

     L2_RQSTS.PF_MISS
             (Event 24H, Umask 80H) Requests from L2 Hardware prefetcher that
             missed L2.

     L2_RQSTS.ALL_PF
             (Event 24H, Umask C0H) Any requests from L2 Hardware prefetchers.

     L2_STORE_LOCK_RQSTS.MISS
             (Event 27H, Umask 01H) ROs that miss cache lines.

     L2_STORE_LOCK_RQSTS.HIT_E
             (Event 27H, Umask 04H) RFOs that hit cache lines in E state.

     L2_STORE_LOCK_RQSTS.HIT_M
             (Event 27H, Umask 08H) RFOs that hit cache lines in M state.

     L2_STORE_LOCK_RQSTS.ALL
             (Event 27H, Umask 0FH) RFOs that access cache lines in any state.

     L2_L1D_WB_RQSTS.MISS
             (Event 28H, Umask 01H) Not rejected writebacks from L1D to L2
             cache lines that missed L2.

     L2_L1D_WB_RQSTS.HIT_S
             (Event 28H, Umask 02H) Not rejected writebacks from L1D to L2
             cache lines in S state.

     L2_L1D_WB_RQSTS.HIT_E
             (Event 28H, Umask 04H) Not rejected writebacks from L1D to L2
             cache lines in E state.

     L2_L1D_WB_RQSTS.HIT_M
             (Event 28H, Umask 08H) Not rejected writebacks from L1D to L2
             cache lines in M state.

     L2_L1D_WB_RQSTS.ALL
             (Event 28H, Umask 0FH) Not rejected writebacks from L1D to L2
             cache.

     LONGEST_LAT_CACHE.REFERENCE
             (Event 2EH, Umask 4FH) This event counts requests originating
             from the core that reference a cache line in the last level
             cache.

     LONGEST_LAT_CACHE.MISS
             (Event 2EH, Umask 41H) This event counts each cache miss
             condition for references to the last level cache.

     CPU_CLK_UNHALTED.THREAD_P
             (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.

     CPU_CLK_THREAD_UNHALTED.REF_XCLK
             (Event 3CH, Umask 01H) Increments at the frequency of XCLK (100
             MHz) when not halted.

     L1D_PEND_MISS.PENDING
             (Event 48H, Umask 01H) Increments the number of outstanding L1D
             misses every cycle.  Set Cmaks = 1 and Edge =1 to count
             occurrences.

     DTLB_STORE_MISSES.MISS_CAUSES_A_WALK
             (Event 49H, Umask 01H) Miss in all TLB levels causes an page walk
             of any page size (4K/2M/4M/1G).

     DTLB_STORE_MISSES.WALK_COMPLETED
             (Event 49H, Umask 02H) Miss in all TLB levels causes a page walk
             that completes of any page size (4K/2M/4M/1G).

     DTLB_STORE_MISSES.WALK_DURATION
             (Event 49H, Umask 04H) Cycles PMH is busy with this walk.

     DTLB_STORE_MISSES.STLB_HIT
             (Event 49H, Umask 10H) Store operations that miss the first TLB
             level but hit the second and do not cause page walks.

     LOAD_HIT_PRE.SW_PF
             (Event 4CH, Umask 01H) Not SW-prefetch load dispatches that hit
             fill buffer allocated for S/W prefetch.

     LOAD_HIT_PER.HW_PF
             (Event 4CH, Umask 02H) Not SW-prefetch load dispatches that hit
             fill buffer allocated for H/W prefetch.

     HW_PRE_REQ.DL1_MISS
             (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.

     L1D.REPLACEMENT
             (Event 51H, Umask 01H) Counts the number of lines brought into
             the L1 data cache.

     L1D.ALLOCATED_IN_M
             (Event 51H, Umask 02H) Counts the number of allocations of
             modified L1D cache lines.

     L1D.EVICTION
             (Event 51H, Umask 04H) Counts the number of modified lines
             evicted from the L1 data cache due to replacement.

     L1D.ALL_M_REPLACEMENT
             (Event 51H, Umask 08H) Cache lines in M state evicted out of L1D
             due to Snoop HitM or dirty line replacement.

     PARTIAL_RAT_STALLS.FLAGS_MERGE_UOP
             (Event 59H, Umask 0CH) Increments the number of flags-merge uops
             in flight each cycle.  Set Cmask = 1 to count cycles.

     PARTIAL_RAT_STALLS.SLOW_LEA_WINDOW
             (Event 59H, Umask 0FH) Cycles with at least one slow LEA uop
             allocated.

     PARTIAL_RAT_STALLS.MUL_SINGLE_UOP
             (Event 59H, Umask 40H) Number of Multiply packed/scalar single
             precision uops allocated.

     RESOURCE_STALLS2.ALL_FL_EMPTY
             (Event 5BH, Umask 0CH) Cycles stalled due to free list empty.

     RESOURCE_STALLS2.ALL_PRF_CONTROL
             (Event 5BH, Umask 0FH) Cycles stalled due to control structures
             full for physical registers.

     RESOURCE_STALLS2.BOB_FULL
             (Event 5BH, Umask 40H) Cycles Allocator is stalled due Branch
             Order Buffer.

     RESOURCE_STALLS2.OOO_RSRC
             (Event 5BH, Umask 4FH) Cycles stalled due to out of order
             resources full.

     CPL_CYCLES.RING0
             (Event 5CH, Umask 01H) Unhalted core cycles when the thread is in
             ring 0.

     CPL_CYCLES.RING123
             (Event 5CH, Umask 02H) Unhalted core cycles when the thread is
             not in ring 0.

     RS_EVENTS.EMPTY_CYCLES
             (Event 5EH, Umask 01H) Cycles the RS is empty for the thread.

     OFFCORE_REQUESTS_OUTSTANDING.DEMAND_DATA_RD
             (Event 60H, Umask 01H) Offcore outstanding Demand Data Read
             transactions in SQ to uncore. Set Cmask=1 to count cycles.

     OFFCORE_REQUESTS_OUTSTANDING.DEMAND_RFO
             (Event 60H, Umask 04H) Offcore outstanding RFO store transactions
             in SQ to uncore. Set Cmask=1 to count cycles.

     OFFCORE_REQUESTS_OUTSTANDING.ALL_DATA_RD
             (Event 60H, Umask 08H) Offcore outstanding cacheable data read
             transactions in SQ to uncore. Set Cmask=1 to count cycles.

     LOCK_CYCLES.SPLIT_LOCK_UC_LOCK_DURATION
             (Event 63H, Umask 01H) Cycles in which the L1D and L2 are locked,
             due to a UC lock or split lock.

     LOCK_CYCLES.CACHE_LOCK_DURATION
             (Event 63H, Umask 02H) Cycles in which the L1D is locked.

     IDQ.EMPTY
             (Event 79H, Umask 02H) Counts cycles the IDQ is empty.

     IDQ.MITE_UOPS
             (Event 79H, Umask 04H) Increment each cycle # of uops delivered
             to IDQ from MITE path.  Set Cmask = 1 to count cycles.

     IDQ.DSB_UOPS
             (Event 79H, Umask 08H) Increment each cycle. # of uops delivered
             to IDQ from DSB path.  Set Cmask = 1 to count cycles.

     IDQ.MS_DSB_UOPS
             (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.

     IDQ.MS_MITE_UOPS
             (Event 79H, Umask 20H) Increment each cycle # of uops delivered
             to IDQ when MS is busy by MITE. Set Cmask = 1 to count cycles.

     IDQ.MS_UOPS
             (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.

     ICACHE.MISSES
             (Event 80H, Umask 02H) Number of Instruction Cache, Streaming
             Buffer and Victim Cache Misses. Includes UC accesses.

     ITLB_MISSES.MISS_CAUSES_A_WALK
             (Event 85H, Umask 01H) Misses in all ITLB levels that cause page
             walks.

     ITLB_MISSES.WALK_COMPLETED
             (Event 85H, Umask 02H) Misses in all ITLB levels that cause
             completed page walks.

     ITLB_MISSES.WALK_DURATION
             (Event 85H, Umask 04H) Cycle PMH is busy with a walk.

     ITLB_MISSES.STLB_HIT
             (Event 85H, Umask 10H) Number of cache load STLB hits. No page
             walk.

     ILD_STALL.LCP
             (Event 87H, Umask 01H) Stalls caused by changing prefix length of
             the instruction.

     ILD_STALL.IQ_FULL
             (Event 87H, Umask 04H) Stall cycles due to IQ is full.

     BR_INST_EXEC.NONTAKEN_COND
             (Event 88H, Umask 41H) Count conditional near branch instructions
             that were executed (but not necessarily retired) and not taken.

     BR_INST_EXEC.TAKEN_COND
             (Event 88H, Umask 81H) Count conditional near branch instructions
             that were executed (but not necessarily retired) and taken.

     BR_INST_EXEC.DIRECT_JMP
             (Event 88H, Umask 82H) Count all unconditional near branch
             instructions excluding calls and indirect branches.

     BR_INST_EXEC.INDIRECT_JMP_NON_CALL_RET
             (Event 88H, Umask 84H) Count executed indirect near branch
             instructions that are not calls nor returns.

     BR_INST_EXEC.RETURN_NEAR
             (Event 88H, Umask 88H) Count indirect near branches that have a
             return mnemonic.

     BR_INST_EXEC.DIRECT_NEAR_CALL
             (Event 88H, Umask 90H) Count unconditional near call branch
             instructions, excluding non call branch, executed.

     BR_INST_EXEC.INDIRECT_NEAR_CALL
             (Event 88H, Umask A0H) Count indirect near calls, including both
             register and memory indirect, executed.

     BR_INST_EXEC.ALL_BRANCHES
             (Event 88H, Umask FFH) Counts all near executed branches (not
             necessarily retired).

     BR_MISP_EXEC.NONTAKEN_COND
             (Event 89H, Umask 41H) Count conditional near branch instructions
             mispredicted as nontaken.

     BR_MISP_EXEC.TAKEN_COND
             (Event 89H, Umask 81H) Count conditional near branch instructions
             mispredicted as taken.

     BR_MISP_EXEC.INDIRECT_JMP_NON_CALL_RET
             (Event 89H, Umask 84H) Count mispredicted indirect near branch
             instructions that are not calls nor returns.

     BR_MISP_EXEC.RETURN_NEAR
             (Event 89H, Umask 88H) Count mispredicted indirect near branches
             that have a return mnemonic.

     BR_MISP_EXEC.DIRECT_NEAR_CALL
             (Event 89H, Umask 90H) Count mispredicted unconditional near call
             branch instructions, excluding non call branch, executed.

     BR_MISP_EXEC.INDIRECT_NEAR_CALL
             (Event 89H, Umask A0H) Count mispredicted indirect near calls,
             including both register and memory indirect, executed.

     BR_MISP_EXEC.ALL_BRANCHES
             (Event 89H, Umask FFH) Counts all mispredicted near executed
             branches (not necessarily retired).

     IDQ_UOPS_NOT_DELIVERED.CORE
             (Event 9CH, Umask 01H) Count number of non-delivered uops to RAT
             per thread.

     UOPS_DISPATCHED_PORT.PORT_0
             (Event A1H, Umask 01H) Cycles which a Uop is dispatched on port
             0.

     UOPS_DISPATCHED_PORT.PORT_1
             (Event A1H, Umask 02H) Cycles which a Uop is dispatched on port
             1.

     UOPS_DISPATCHED_PORT.PORT_2_LD
             (Event A1H, Umask 04H) Cycles which a load uop is dispatched on
             port 2.

     UOPS_DISPATCHED_PORT.PORT_2_STA
             (Event A1H, Umask 08H) Cycles which a store address uop is
             dispatched on port 2.

     UOPS_DISPATCHED_PORT.PORT_2
             (Event A1H, Umask 0CH) Cycles which a Uop is dispatched on port
             2.

     UOPS_DISPATCHED_PORT.PORT_3_LD
             (Event A1H, Umask 10H) Cycles which a load uop is dispatched on
             port 3.

     UOPS_DISPATCHED_PORT.PORT_3_STA
             (Event A1H, Umask 20H) Cycles which a store address uop is
             dispatched on port 3.

     UOPS_DISPATCHED_PORT.PORT_3
             (Event A1H, Umask 30H) Cycles which a Uop is dispatched on port
             3.

     UOPS_DISPATCHED_PORT.PORT_4
             (Event A1H, Umask 40H) Cycles which a Uop is dispatched on port
             4.

     UOPS_DISPATCHED_PORT.PORT_5
             (Event A1H, Umask 80H) Cycles which a Uop is dispatched on port
             5.

     RESOURCE_STALLS.ANY
             (Event A2H, Umask 01H) Cycles Allocation is stalled due to
             Resource Related reason.

     RESOURCE_STALLS.LB
             (Event A2H, Umask 01H) Counts the cycles of stall due to lack of
             load buffers.

     RESOURCE_STALLS.RS
             (Event A2H, Umask 04H) Cycles stalled due to no eligible RS entry
             available.

     RESOURCE_STALLS.SB
             (Event A2H, Umask 08H) Cycles stalled due to no store buffers
             available. (not including draining form sync).

     RESOURCE_STALLS.ROB
             (Event A2H, Umask 10H) Cycles stalled due to re-order buffer
             full.

     RESOURCE_STALLS.FCSW
             (Event A2H, Umask 20H) Cycles stalled due to writing the FPU
             control word.

     RESOURCE_STALLS.MXCSR
             (Event A2H, Umask 40H) Cycles stalled due to the MXCSR register
             rename occurring to close to a previous MXCSR rename.

     RESOURCE_STALLS.OTHER
             (Event A2H, Umask 80H) Cycles stalled while execution was stalled
             due to other resource issues.

     CYCLE_ACTIVITY.CYCLES_L2_PENDING
             (Event A3H, Umask 01H) Cycles with pending L2 miss loads. Set
             AnyThread to count per core.

     CYCLE_ACTIVITY.CYCLES_L1D_PENDING
             (Event A3H, Umask 02H) Cycles with pending L1 cache miss
             loads.Set AnyThread to count per core.

     CYCLE_ACTIVITY.CYCLES_NO_DISPATCH
             (Event A3H, Umask 04H) Cycles of dispatch stalls. Set AnyThread
             to count per core.

     DSB2MITE_SWITCHES.COUNT
             (Event ABH, Umask 01H) Number of DSB to MITE switches.

     DSB2MITE_SWITCHES.PENALTY_CYCLES
             (Event ABH, Umask 02H) Cycles DSB to MITE switches caused delay.

     DSB_FILL.OTHER_CANCEL
             (Event ACH, Umask 02H) Cases of cancelling valid DSB fill not
             because of exceeding way limit.

     DSB_FILL.EXCEED_DSB_LINES
             (Event ACH, Umask 08H) DSB Fill encountered > 3 DSB lines.

     DSB_FILL.ALL_CANCEL
             (Event ACH, Umask 0AH) Cases of cancelling valid Decode Stream
             Buffer (DSB) fill not because of exceeding way limit.

     ITLB.ITLB_FLUSH
             (Event AEH, Umask 01H) Counts the number of ITLB flushes,
             includes 4k/2M/4M pages.

     OFFCORE_REQUESTS.DEMAND_DATA_RD
             (Event B0H, Umask 01H) Demand data read requests sent to uncore.

     OFFCORE_REQUESTS.DEMAND_RFO
             (Event B0H, Umask 04H) Demand RFO read requests sent to uncore,
             including regular RFOs, locks, ItoM.

     OFFCORE_REQUESTS.ALL_DATA_RD
             (Event B0H, Umask 08H) Data read requests sent to uncore (demand
             and prefetch).

     UOPS_DISPATCHED.THREAD
             (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.

     UOPS_DISPATCHED.CORE
             (Event B1H, Umask 02H) Counts total number of uops to be
             dispatched per- core each cycle.

     OFFCORE_REQUESTS_BUFFER.SQ_FULL
             (Event B2H, Umask 01H) Offcore requests buffer cannot take more
             entries for this thread core.

     AGU_BYPASS_CANCEL.COUNT
             (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.

     OFF_CORE_RESPONSE_0
             (Event B7H, Umask 01H) (Event B7H, Umask 01H) Off-core Response
             Performance Monitoring; PMC0 only.  Requires programming MSR
             01A6H

     OFF_CORE_RESPONSE_1
             (Event BBH, Umask 01H) (Event BBH, Umask 01H) Off-core Response
             Performance Monitoring; PMC3 only.  Requires programming MSR
             01A7H

     TLB_FLUSH.DTLB_THREAD
             (Event BDH, Umask 01H) DTLB flush attempts of the thread-specific
             entries.

     TLB_FLUSH.STLB_ANY
             (Event BDH, Umask 20H) Count number of STLB flush attempts.

     L1D_BLOCKS.BANK_CONFLICT_CYCLES
             (Event BFH, Umask 05H) Cycles when dispatched loads are cancelled
             due to L1D bank conflicts with other load ports.

     INST_RETIRED.ANY_P
             (Event C0H, Umask 00H) Number of instructions at retirement.

     INST_RETIRED.ALL
             (Event C0H, Umask 01H) Precise instruction retired event with HW
             to reduce effect of PEBS shadow in IP distribution.

     OTHER_ASSISTS.ITLB_MISS_RETIRED
             (Event C1H, Umask 02H) Instructions that experienced an ITLB
             miss.

     OTHER_ASSISTS.AVX_STORE
             (Event C1H, Umask 08H) Number of assists associated with 256-bit
             AVX store operations.

     OTHER_ASSISTS.AVX_TO_SSE
             (Event C1H, Umask 10H) Number of transitions from AVX-256 to
             legacy SSE when penalty applicable.

     OTHER_ASSISTS.SSE_TO_AVX
             (Event C1H, Umask 20H) Number of transitions from SSE to AVX-256
             when penalty applicable.

     UOPS_RETIRED.ALL
             (Event C2H, Umask 01H) Counts the number of micro-ops retired,
             Use cmask=1 and invert to count active cycles or stalled cycles.

     UOPS_RETIRED.RETIRE_SLOTS
             (Event C2H, Umask 02H) Counts the number of retirement slots used
             each cycle.

     MACHINE_CLEARS.MEMORY_ORDERING
             (Event C3H, Umask 02H) Counts the number of machine clears due to
             memory order conflicts.

     MACHINE_CLEARS.SMC
             (Event C3H, Umask 04H) Counts the number of times that a program
             writes to a code section.

     MACHINE_CLEARS.MASKMOV
             (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.

     BR_INST_RETIRED.ALL_BRANCH
             (Event C4H, Umask 00H) Branch instructions at retirement.

     BR_INST_RETIRED.CONDITIONAL
             (Event C4H, Umask 01H) Counts the number of conditional branch
             instructions retired.

     BR_INST_RETIRED.NEAR_CALL
             (Event C4H, Umask 02H) Direct and indirect near call instructions
             retired.

     BR_INST_RETIRED.ALL_BRANCHES
             (Event C4H, Umask 04H) Counts the number of branch instructions
             retired.

     BR_INST_RETIRED.NEAR_RETURN
             (Event C4H, Umask 08H) Counts the number of near return
             instructions retired.

     BR_INST_RETIRED.NOT_TAKEN
             (Event C4H, Umask 10H) Counts the number of not taken branch
             instructions retired.

     BR_INST_RETIRED.NEAR_TAKEN
             (Event C4H, Umask 20H) Number of near taken branches retired.

     BR_INST_RETIRED.FAR_BRANCH
             (Event C4H, Umask 40H) Number of far branches retired.

     BR_MISP_RETIRED.ALL_BRANCHES
             (Event C5H, Umask 00H) Mispredicted branch instructions at
             retirement.

     BR_MISP_RETIRED.CONDITIONAL
             (Event C5H, Umask 01H) Mispredicted conditional branch
             instructions retired.

     BR_MISP_RETIRED.NEAR_CALL
             (Event C5H, Umask 02H) Direct and indirect mispredicted near call
             instructions retired.

     BR_MISP_RETIRED.ALL_BRANCHES
             (Event C5H, Umask 04H) Mispredicted macro branch instructions
             retired.

     BR_MISP_RETIRED.NOT_TAKEN
             (Event C5H, Umask 10H) Mispredicted not taken branch instructions
             retired.

     BR_MISP_RETIRED.TAKEN
             (Event C5H, Umask 20H) Mispredicted taken branch instructions
             retired.

     FP_ASSIST.X87_OUTPUT
             (Event CAH, Umask 02H) Number of X87 assists due to output value.

     FP_ASSIST.X87_INPUT
             (Event CAH, Umask 04H) Number of X87 assists due to input value.

     FP_ASSIST.SIMD_OUTPUT
             (Event CAH, Umask 08H)
              Number of SIMD FP assists due to output values.

     FP_ASSIST.SIMD_INPUT
             (Event CAH, Umask 10H) Number of SIMD FP assists due to input
             values.

     FP_ASSIST.ANY 1EH
             (Event CAH, Umask) Cycles with any input/output SSE* or FP
             assists.

     ROB_MISC_EVENTS.LBR_INSERTS
             (Event CCH, Umask 20H) Count cases of saving new LBR records by
             hardware.

     MEM_TRANS_RETIRED.LOAD_LATENCY
             (Event CDH, Umask 01H) Sample loads with specified latency
             threshold.  PMC3 only.

     MEM_TRANS_RETIRED.PRECISE_STORE
             (Event CDH, Umask 02H) Sample stores and collect precise store
             operation via PEBS record. PMC3 only.

     MEM_UOP_RETIRED.LOADS
             (Event D0H, Umask 10H) Qualify retired memory uops that are
             loads.  Combine with umask 10H, 20H, 40H, 80H.

     MEM_UOP_RETIRED.STORES
             (Event D0H, Umask 02H) Qualify retired memory uops that are
             stores.  Combine with umask 10H, 20H, 40H, 80H.

     MEM_UOP_RETIRED.STLB_MISS
             (Event D0H, Umask) Qualify retired memory uops with STLB miss.
             Must combine with umask 01H, 02H, to produce counts.

     MEM_UOP_RETIRED.LOCK
             (Event D0H, Umask) Qualify retired memory uops with lock. Must
             combine with umask 01H, 02H, to produce counts.

     MEM_UOP_RETIRED.SPLIT
             (Event D0H, Umask) Qualify retired memory uops with line split.
             Must combine with umask 01H, 02H, to produce counts.

     MEM_UOP_RETIRED_ALL
             (Event D0H, Umask) Qualify any retired memory uops. Must combine
             with umask 01H, 02H, to produce counts.

     MEM_LOAD_UOPS_RETIRED.L1_HIT
             (Event D1H, Umask 01H) Retired load uops with L1 cache hits as
             data sources.

     MEM_LOAD_UOPS_RETIRED.L2_HIT
             (Event D1H, Umask 02H) Retired load uops with L2 cache hits as
             data sources.

     MEM_LOAD_UOPS_RETIRED.LLC_HIT
             (Event D1H, Umask 04H) Retired load uops which data sources were
             data hits in LLC without snoops required.

     MEM_LOAD_UOPS_RETIRED.LLC_MISS
             (Event D1H, Umask 20H) Retired load uops which data sources were
             data missed LLC (excluding unknown data source).

     MEM_LOAD_UOPS_RETIRED.HIT_LFB
             (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.

     MEM_LOAD_UOPS_MISC_RETIRED.LLC_MISS
             (Event D4H, Umask 02H) Retired load uops with unknown information
             as data source in cache serviced the load.

     BACLEARS.ANY
             (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.

     L2_TRANS.DEMAND_DATA_RD
             (Event F0H, Umask 01H) Demand Data Read requests that access L2
             cache.

     L2_TRANS.RFO
             (Event F0H, Umask 02H) RFO requests that access L2 cache.

     L2_TRANS.CODE_RD
             (Event F0H, Umask 04H) L2 cache accesses when fetching
             instructions.

     L2_TRANS.ALL_PF
             (Event F0H, Umask 08H) L2 or LLC HW prefetches that access L2
             cache.

     L2_TRANS.L1D_WB
             (Event F0H, Umask 10H) L1D writebacks that access L2 cache.

     L2_TRANS.L2_FILL
             (Event F0H, Umask 20H) L2 fill requests that access L2 cache.

     L2_TRANS.L2_WB
             (Event F0H, Umask 40H) L2 writebacks that access L2 cache.

     L2_TRANS.ALL_REQUESTS
             (Event F0H, Umask 80H) Transactions accessing L2 pipe.

     L2_LINES_IN.I
             (Event F1H, Umask 01H) L2 cache lines in I state filling L2.

     L2_LINES_IN.S
             (Event F1H, Umask 02H) L2 cache lines in S state filling L2.

     L2_LINES_IN.E
             (Event F1H, Umask 04H) L2 cache lines in E state filling L2.

     L2_LINES-IN.ALL
             (Event F1H, Umask 07H) L2 cache lines filling L2.

     L2_LINES_OUT.DEMAND_CLEAN
             (Event F2H, Umask 01H) Clean L2 cache lines evicted by demand.

     L2_LINES_OUT.DEMAND_DIRTY
             (Event F2H, Umask 02H) Dirty L2 cache lines evicted by demand.

     L2_LINES_OUT.PF_CLEAN
             (Event F2H, Umask 04H) Clean L2 cache lines evicted by L2
             prefetch.

     L2_LINES_OUT.PF_DIRTY
             (Event F2H, Umask 08H) Dirty L2 cache lines evicted by L2
             prefetch.

     L2_LINES_OUT.DIRTY_ALL
             (Event F2H, Umask 0AH) Dirty L2 cache lines filling the L2.

     SQ_MISC.SPLIT_LOCK
             (Event F4H, Umask 10H) Split locks in SQ.

SEE ALSO
     pmc(3), pmc.atom(3), pmc.core(3), pmc.corei7(3), pmc.corei7uc(3),
     pmc.haswelluc(3), pmc.iaf(3), pmc.ivybridge(3), pmc.ivybridgexeon(3),
     pmc.k7(3), pmc.k8(3), pmc.p4(3), pmc.p5(3), pmc.p6(3),
     pmc.sandybridge(3), pmc.sandybridgeuc(3), pmc.soft(3), pmc.tsc(3),
     pmc.ucf(3), pmc.westmere(3), pmc.westmereuc(3), pmc_cpuinfo(3),
     pmclog(3), hwpmc(4)

HISTORY
     The pmc library first appeared in FreeBSD 6.0.

AUTHORS
     The Performance Counters Library (libpmc, -lpmc) library was written by
     Joseph Koshy <[email protected]>.  The support for the Sandy Bridge Xeon
     microarchitecture was written by Hiren Panchasara
     <[email protected]>.

FreeBSD 11.1-RELEASE-p4        October 18, 2012        FreeBSD 11.1-RELEASE-p4
Command Section