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AMD family 12h events

This is a list of AMD64 family 12h's CPU's performance counter event types. Please see BIOS and Kernel Developer's Guide for AMD Family 12h Processors.

NameDescriptionCounters usableUnit mask options
DISPATCHED_FPU_OPS Dispatched FPU Operations all 0x01: Add pipe ops excluding load ops and SSE move ops
0x02: Multiply pipe ops excluding load ops and SSE move ops
0x04: Store pipe ops excluding load ops and SSE move ops
0x08: Add pipe load ops and SSE move ops
0x10: Multiply pipe load ops and SSE move ops
0x20: Store pipe load ops and SSE move ops
0x3f: All ops
CYCLES_FPU_EMPTY Cycles in which the FPU is Empty all
DISPATCHED_FPU_OPS_FAST_FLAG Dispatched Fast Flag FPU Operations all
RETIRED_SSE_OPS Retired SSE Operations all 0x01: Single Precision add/subtract ops
0x02: Single precision multiply ops
0x04: Single precision divide/square root ops
0x08: Double precision add/subtract ops
0x10: Double precision multiply ops
0x20: Double precision divide/square root ops
0x40: OP type: 0=uops 1=FLOPS
RETIRED_MOVE_OPS Retired Move Ops all 0x01: Merging low quadword move uops
0x02: Merging high quadword move uops
0x04: All other merging move uops
0x08: All other move uops
RETIRED_SERIALIZING_OPS Retired Serializing Ops all 0x01: SSE bottom-executing uops retired
0x02: SSE bottom-serializing uops retired
0x04: x87 bottom-executing uops retired
0x08: x87 bottom-serializing uops retired
SERIAL_UOPS_IN_FP_SCHED Number of Cycles that a Serializing uop is in the FP Scheduler all 0x01: Number of cycles a bottom-execute uops in FP scheduler
0x02: Number of cycles a bottom-serializing uops in FP scheduler
SEGMENT_REGISTER_LOADS Segment Register Loads all 0x01: ES register
0x02: CS register
0x04: SS register
0x08: DS register
0x10: FS register
0x20: GS register
0x40: HS register
PIPELINE_RESTART_DUE_TO_SELF_MODIFYING_CODE Pipeline Restart Due to Self-Modifying Code all
PIPELINE_RESTART_DUE_TO_PROBE_HIT Pipeline Restart Due to Probe Hit all
LS_BUFFER_2_FULL_CYCLES LS Buffer 2 Full all
LOCKED_OPS Locked Operations all 0x01: Number of locked instructions executed
0x02: Cycles in speculative phase
0x04: Cycles in non-speculative phase (including cache miss penalty)
0x08: Cache miss penalty in cycles
CANCELLED_STORE_TO_LOAD Cancelled Store to Load Forward Operations all 0x01: Address mismatches (starting byte not the same)
0x02: Store is smaller than load
0x04: Misaligned
DATA_CACHE_ACCESSES Data Cache Accesses all
DATA_CACHE_MISSES Data Cache Misses all
DATA_CACHE_REFILLS_FROM_L2_OR_NORTHBRIDGE Data Cache Refills from L2 or Northbridge all 0x01: Refill from northbridge
0x02: Shared-state line from L2
0x04: Exclusive-state line from L2
0x08: Owner-state line from L2
0x10: Modified-state line from L2
0x1e: All cache states except refill from northbridge
DATA_CACHE_REFILLS_FROM_NORTHBRIDGE Data Cache Refills from the Northbridge all 0x01: (I)nvalid cache state
0x02: (S)hared cache state
0x04: (E)xclusive cache state
0x08: (O)wned cache state
0x10: (M)odified cache state
0x1f: All cache states
DATA_CACHE_LINES_EVICTED Data Cache Lines Evicted all 0x01: (I)nvalid cache state
0x02: (S)hared cache state
0x04: (E)xclusive cache state
0x08: (O)wned cache state
0x10: (M)odified cache state
0x20: Cache line evicted brought into the cache by PrefetchNTA
0x40: Cache line evicted not brought into the cache by PrefetchNTA
L1_DTLB_MISS_AND_L2_DTLB_HIT L1 DTLB Miss and L2 DTLB Hit all 0x01: L2 4K TLB hit
0x02: L2 2M TLB hit
0x04: L2 1G TLB hit
L1_DTLB_AND_L2_DTLB_MISS L1 DTLB and L2 DTLB Miss all 0x01: 4K TLB reload
0x02: 2M TLB reload
0x04: 1G TLB reload
MISALIGNED_ACCESSES Misaligned Accesses all
MICRO_ARCH_LATE_CANCEL_ACCESS Microarchitectural Late Cancel of an Access all
MICRO_ARCH_EARLY_CANCEL_ACCESS Microarchitectural Early Cancel of an Access all
PREFETCH_INSTRUCTIONS_DISPATCHED Prefetch Instructions Dispatched all 0x01: Load (Prefetch, PrefetchT0/T1/T2)
0x02: Store (PrefetchW)
0x04: NTA (PrefetchNTA)
LOCKED_INSTRUCTIONS_DCACHE_MISSES DCACHE Misses by Locked Instructions all 0x02: Data cache misses by locked instructions
L1_DTLB_HIT L1 DTLB Hit all 0x01: L1 4K TLB hit
0x02: L1 2M TLB hit
0x04: L1 1G TLB hit
INEFFECTIVE_SW_PREFETCHES Ineffective Software Prefetches all 0x01: Software prefetch hit in L1
0x08: Software prefetch hit in L2
MEMORY_REQUESTS Memory Requests by Type all 0x01: Requests to non-cacheable (UC) memory
0x02: Requests to write-combining (WC) memory or WC buffer flushes to WB memory
0x04: Requests to cache-disabled (CD) memory
0x80: Streaming store (SS) requests
DATA_PREFETCHES Data Prefetcher all 0x01: Cancelled prefetches
0x02: Prefetch attempts
NORTHBRIDGE_READ_RESPONSES Northbridge Read Responses by Coherency State all 0x01: Exclusive
0x02: Modified
0x04: Shared
0x08: Owned
0x10: Data Error
OCTWORD_WRITE_TRANSFERS Octwords Written to System all 0x01: Octword write transfer
CPU_CLK_UNHALTED CPU Clocks not Halted all
REQUESTS_TO_L2 Requests to L2 Cache all 0x01: IC fill
0x02: DC fill
0x04: TLB fill (page table walks)
0x08: Tag snoop request
0x10: Canceled request
0x20: Hardware prefetch from data cache
L2_CACHE_MISS L2 Cache Misses all 0x01: IC fill
0x02: DC fill (includes possible replays)
0x04: TLB page table walk
0x08: Hardware prefetch from data cache
L2_CACHE_FILL_WRITEBACK L2 Fill/Writeback all 0x01: L2 fills (victims from L1 caches, TLB page table walks and data prefetches)
0x02: L2 writebacks to system
PAGE_SIZE_MISMATCHES Page Size Mismatches all 0x01: Guest page size is larger than the host page size
0x02: MTRR mismatch
0x04: Host page size is larger than the guest page size
INSTRUCTION_CACHE_FETCHES Instruction Cache Fetches all
INSTRUCTION_CACHE_MISSES Instruction Cache Misses all
INSTRUCTION_CACHE_REFILLS_FROM_L2 Instruction Cache Refills from L2 all
INSTRUCTION_CACHE_REFILLS_FROM_SYSTEM Instruction Cache Refills from System all
L1_ITLB_MISS_AND_L2_ITLB_MISS L1 ITLB Miss, L2 ITLB Miss all 0x01: Instruction fetches to a 4K page
0x02: Instruction fetches to a 2M page
PIPELINE_RESTART_DUE_TO_INSTRUCTION_STREAM_PROBE Pipeline Restart Due to Instruction Stream Probe all
INSTRUCTION_FETCH_STALL Instruction Fetch Stall all
RETURN_STACK_HITS Return Stack Hits all
RETURN_STACK_OVERFLOWS Return Stack Overflows all
INSTRUCTION_CACHE_VICTIMS Instruction Cache Victims all
INSTRUCTION_CACHE_INVALIDATED Instruction Cache Lines Invalidated all 0x01: Invalidating probe that did not hit any in-flight instructions
0x02: Invalidating probe that hit one or more in-flight instructions
0x04: SMC that did not hit any in-flight instructions
0x08: SMC that hit one or more in-flight instructions
RETIRED_INSTRUCTIONS Retired Instructions all
RETIRED_UOPS Retired uops all
RETIRED_BRANCH_INSTRUCTIONS Retired Branch Instructions all
RETIRED_MISPREDICTED_BRANCH_INSTRUCTIONS Retired Mispredicted Branch Instructions all
RETIRED_TAKEN_BRANCH_INSTRUCTIONS Retired Taken Branch Instructions all
RETIRED_TAKEN_BRANCH_INSTRUCTIONS_MISPREDICTED Retired Taken Branch Instructions Mispredicted all
RETIRED_FAR_CONTROL_TRANSFERS Retired Far Control Transfers all
RETIRED_BRANCH_RESYNCS Retired Branch Resyncs all
RETIRED_NEAR_RETURNS Retired Near Returns all
RETIRED_NEAR_RETURNS_MISPREDICTED Retired Near Returns Mispredicted all
RETIRED_INDIRECT_BRANCHES_MISPREDICTED Retired Indirect Branches Mispredicted all
RETIRED_MMX_FP_INSTRUCTIONS Retired MMX(tm)/FP Instructions all 0x01: x87 instructions
0x02: MMX & 3DNow instructions
0x04: SSE instructions (SSE, SSE2, SSE3, and SSE4A)
INTERRUPTS_MASKED_CYCLES Interrupts-Masked Cycles all
INTERRUPTS_MASKED_CYCLES_WITH_INTERRUPT_PENDING Interrupts-Masked Cycles with Interrupt Pending all
INTERRUPTS_TAKEN Interrupts Taken all
DECODER_EMPTY Decoder Empty all
DISPATCH_STALLS Dispatch Stalls all
DISPATCH_STALL_FOR_BRANCH_ABORT Dispatch Stall for Branch Abort to Retire all
DISPATCH_STALL_FOR_SERIALIZATION Dispatch Stall for Serialization all
DISPATCH_STALL_FOR_SEGMENT_LOAD Dispatch Stall for Segment Load all
DISPATCH_STALL_FOR_REORDER_BUFFER_FULL Dispatch Stall for Reorder Buffer Full all
DISPATCH_STALL_FOR_RESERVATION_STATION_FULL Dispatch Stall for Reservation Station Full all
DISPATCH_STALL_FOR_FPU_FULL Dispatch Stall for FPU Full all
DISPATCH_STALL_FOR_LS_FULL Dispatch Stall for LS Full all
DISPATCH_STALL_WAITING_FOR_ALL_QUIET Dispatch Stall Waiting for All Quiet all
DISPATCH_STALL_FOR_FAR_TRANSFER_OR_RESYNC Dispatch Stall for Far Transfer or Resync to Retire all
FPU_EXCEPTIONS FPU Exceptions all 0x01: x87 reclass microfaults
0x02: SSE retype microfaults
0x04: SSE reclass microfaults
0x08: SSE and x87 microtraps
DR0_BREAKPOINTS DR0 Breakpoint Matches all
DR1_BREAKPOINTS DR1 Breakpoint Matches all
DR2_BREAKPOINTS DR2 Breakpoint Matches all
DR3_BREAKPOINTS DR3 Breakpoint Matches all
RETIRED_X87_FLOATING_POINT_OPERATIONS Retired x87 Floating Point Operations all 0x01: Add/subtract ops
0x02: Multiply ops
0x04: Divide ops
DRAM_ACCESSES DRAM Accesses all 0x01: DCT0 Page hit
0x02: DCT0 Page miss
0x04: DCT0 Page conflict
0x08: DCT1 Page hit
0x10: DCT1 Page miss
0x20: DCT1 Page Conflict
0x40: Write request
0x80: Read request
DCT0_PAGE_TABLE_EVENTS DRAM Controller 0 Page Table Events all 0x01: DCT0 Page Table Overflow
0x02: DCT0 Number of stale table entry hits
0x04: DCT0 Page table idle cycle limit incremented
0x08: DCT0 Page table idle cycle limit decremented
0x10: DCT0 Page table is closed due to row inactivity
MEMORY_CONTROLLER_SLOT_MISSED Memory Controller DRAM Command Slots Missed all 0x10: DCT0 RBD
0x20: DCT1 RBD
0x40: DCT0 Prefetch
0x80: DCT1 Prefetch
MEMORY_CONTROLLER_TURNAROUNDS Memory Controller Turnarounds all 0x01: DCT0 read-to-write turnaround
0x02: DCT0 write-to-read turnaround
0x08: DCT1 read-to-write turnaround
0x10: DCT1 write-to-read turnaround
MEMORY_CONTROLLER_RBD_QUEUE_EVENTS Memory Controller RBD Queue Events all 0x04: D18F2x[1,0]94[DcqBypassMax] counter reached
0x08: Bank is closed due to bank conflict with an outstanding request in the RBD queue
DCT1_PAGE_TABLE_EVENTS DRAM Controller 1 Page Table Events all 0x01: DCT1 Page Table Overflow
0x02: DCT1 Number of stale table entry hits
0x04: DCT1 Page table idle cycle limit incremented
0x08: DCT1 Page table idle cycle limit decremented
0x10: DCT1 Page table is closed due to row inactivity
THERMAL_STATUS Thermal Status all 0x01: MEMHOT_L assertions
0x04: Number of times the HTC transitions from inactive to active
0x20: Number of clocks HTC P-state is inactive
0x40: Number of clocks HTC P-state is active
0x80: PROCHOT_L asserted by external source and caused a P-state change
CPU_IO_REQUESTS_TO_MEMORY_IO CPU/IO Requests to Memory/IO all 0x01: IO to IO
0x02: IO to Mem
0x04: CPU to IO
0x08: CPU to Mem
CACHE_BLOCK_COMMANDS Cache Block Commands all 0x01: Victim Block (Writeback)
0x04: Read Block (Dcache load miss refill)
0x08: Read Block Shared (Icache refill)
0x10: Read Block Modified (Dcache store miss refill)
0x20: Change-to-Dirty (first store to clean block already in cache)
SIZED_COMMANDS Sized Commands all 0x01: Non-posted write byte (1-32 bytes)
0x02: Non-posted write DWORD (1-16 DWORDs)
0x04: Posted write byte (1-32 bytes)
0x08: Posted write DWORD (1-16 DWORDs)
0x10: Read byte (4 bytes)
0x20: Read DWORD (1-16 DWORDs)
PROBE_RESPONSES_AND_UPSTREAM_REQUESTS Probe Responses and Upstream Requests all 0x01: Probe miss
0x02: Probe hit clean
0x04: Probe hit dirty without memory cancel
0x08: Probe hit dirty with memory cancel
0x10: Upstream high priority reads
0x20: Upstream low priority reads
0x80: Upstream low priority writes
DEV_EVENTS DEV Events all 0x10: DEV hit
0x20: DEV miss
0x40: DEV error
MEMORY_CONTROLLER_REQUESTS Memory Controller Requests all 0x01: Write requests
0x02: Read Requests
0x04: Prefetch Requests
0x08: 32 Bytes Sized Writes
0x10: 64 Bytes Sized Writes
0x20: 32 Bytes Sized Reads
0x40: 64 Byte Sized Reads
0x80: Read requests while writes pending in DCQ
SIDEBAND_SIGNALS Sideband Signals and Special Cycles all 0x02: STOPGRANT
0x08: WBINVD
0x10: INVD
INTERRUPT_EVENTS Interrupt Events all 0x01: Fixed and LPA
0x02: LPA
0x04: SMI
0x08: NMI
0x10: INIT
0x40: INT
0x80: EOI
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