我刚刚在 AMD Ryzen 5000 系列上全新安装了 Ubuntu 20。我按照安装说明安装了 papi tools 6。安装成功，我验证了安装的版本:
$ sudo papi_version
PAPI Version: 6.0.0.0
然后，当我验证可用事件时，我什么也没得到:
$ sudo papi_avail
Available PAPI preset and user defined events plus hardware information.
--------------------------------------------------------------------------------
PAPI version : 6.0.0.0
Operating system : Linux 5.8.0-55-generic
Vendor string and code : AuthenticAMD (2, 0x2)
Model string and code : AMD Ryzen 9 5900 12-Core Processor (33, 0x21)
CPU revision : 0.000000
CPUID : Family/Model/Stepping 25/33/0, 0x19/0x21/0x00
CPU Max MHz : 6084
CPU Min MHz : 2200
Total cores : 24
SMT threads per core : 2
Cores per socket : 12
Sockets : 1
Cores per NUMA region : 24
NUMA regions : 1
Running in a VM : no
Number Hardware Counters : 0
Max Multiplex Counters : 384
Fast counter read (rdpmc): yes
--------------------------------------------------------------------------------
================================================================================
PAPI Preset Events
================================================================================
Name Code Avail Deriv Description (Note)
PAPI_L1_DCM 0x80000000 No No Level 1 data cache misses
PAPI_L1_ICM 0x80000001 No No Level 1 instruction cache misses
PAPI_L2_DCM 0x80000002 No No Level 2 data cache misses
PAPI_L2_ICM 0x80000003 No No Level 2 instruction cache misses
PAPI_L3_DCM 0x80000004 No No Level 3 data cache misses
PAPI_L3_ICM 0x80000005 No No Level 3 instruction cache misses
PAPI_L1_TCM 0x80000006 No No Level 1 cache misses
PAPI_L2_TCM 0x80000007 No No Level 2 cache misses
PAPI_L3_TCM 0x80000008 No No Level 3 cache misses
PAPI_CA_SNP 0x80000009 No No Requests for a snoop
PAPI_CA_SHR 0x8000000a No No Requests for exclusive access to shared cache line
PAPI_CA_CLN 0x8000000b No No Requests for exclusive access to clean cache line
PAPI_CA_INV 0x8000000c No No Requests for cache line invalidation
PAPI_CA_ITV 0x8000000d No No Requests for cache line intervention
PAPI_L3_LDM 0x8000000e No No Level 3 load misses
PAPI_L3_STM 0x8000000f No No Level 3 store misses
PAPI_BRU_IDL 0x80000010 No No Cycles branch units are idle
PAPI_FXU_IDL 0x80000011 No No Cycles integer units are idle
PAPI_FPU_IDL 0x80000012 No No Cycles floating point units are idle
PAPI_LSU_IDL 0x80000013 No No Cycles load/store units are idle
PAPI_TLB_DM 0x80000014 No No Data translation lookaside buffer misses
PAPI_TLB_IM 0x80000015 No No Instruction translation lookaside buffer misses
PAPI_TLB_TL 0x80000016 No No Total translation lookaside buffer misses
PAPI_L1_LDM 0x80000017 No No Level 1 load misses
PAPI_L1_STM 0x80000018 No No Level 1 store misses
PAPI_L2_LDM 0x80000019 No No Level 2 load misses
PAPI_L2_STM 0x8000001a No No Level 2 store misses
PAPI_BTAC_M 0x8000001b No No Branch target address cache misses
PAPI_PRF_DM 0x8000001c No No Data prefetch cache misses
PAPI_L3_DCH 0x8000001d No No Level 3 data cache hits
PAPI_TLB_SD 0x8000001e No No Translation lookaside buffer shootdowns
PAPI_CSR_FAL 0x8000001f No No Failed store conditional instructions
PAPI_CSR_SUC 0x80000020 No No Successful store conditional instructions
PAPI_CSR_TOT 0x80000021 No No Total store conditional instructions
PAPI_MEM_SCY 0x80000022 No No Cycles Stalled Waiting for memory accesses
PAPI_MEM_RCY 0x80000023 No No Cycles Stalled Waiting for memory Reads
PAPI_MEM_WCY 0x80000024 No No Cycles Stalled Waiting for memory writes
PAPI_STL_ICY 0x80000025 No No Cycles with no instruction issue
PAPI_FUL_ICY 0x80000026 No No Cycles with maximum instruction issue
PAPI_STL_CCY 0x80000027 No No Cycles with no instructions completed
PAPI_FUL_CCY 0x80000028 No No Cycles with maximum instructions completed
PAPI_HW_INT 0x80000029 No No Hardware interrupts
PAPI_BR_UCN 0x8000002a No No Unconditional branch instructions
PAPI_BR_CN 0x8000002b No No Conditional branch instructions
PAPI_BR_TKN 0x8000002c No No Conditional branch instructions taken
PAPI_BR_NTK 0x8000002d No No Conditional branch instructions not taken
PAPI_BR_MSP 0x8000002e No No Conditional branch instructions mispredicted
PAPI_BR_PRC 0x8000002f No No Conditional branch instructions correctly predicted
PAPI_FMA_INS 0x80000030 No No FMA instructions completed
PAPI_TOT_IIS 0x80000031 No No Instructions issued
PAPI_TOT_INS 0x80000032 No No Instructions completed
PAPI_INT_INS 0x80000033 No No Integer instructions
PAPI_FP_INS 0x80000034 No No Floating point instructions
PAPI_LD_INS 0x80000035 No No Load instructions
PAPI_SR_INS 0x80000036 No No Store instructions
PAPI_BR_INS 0x80000037 No No Branch instructions
PAPI_VEC_INS 0x80000038 No No Vector/SIMD instructions (could include integer)
PAPI_RES_STL 0x80000039 No No Cycles stalled on any resource
PAPI_FP_STAL 0x8000003a No No Cycles the FP unit(s) are stalled
PAPI_TOT_CYC 0x8000003b No No Total cycles
PAPI_LST_INS 0x8000003c No No Load/store instructions completed
PAPI_SYC_INS 0x8000003d No No Synchronization instructions completed
PAPI_L1_DCH 0x8000003e No No Level 1 data cache hits
PAPI_L2_DCH 0x8000003f No No Level 2 data cache hits
PAPI_L1_DCA 0x80000040 No No Level 1 data cache accesses
PAPI_L2_DCA 0x80000041 No No Level 2 data cache accesses
PAPI_L3_DCA 0x80000042 No No Level 3 data cache accesses
PAPI_L1_DCR 0x80000043 No No Level 1 data cache reads
PAPI_L2_DCR 0x80000044 No No Level 2 data cache reads
PAPI_L3_DCR 0x80000045 No No Level 3 data cache reads
PAPI_L1_DCW 0x80000046 No No Level 1 data cache writes
PAPI_L2_DCW 0x80000047 No No Level 2 data cache writes
PAPI_L3_DCW 0x80000048 No No Level 3 data cache writes
PAPI_L1_ICH 0x80000049 No No Level 1 instruction cache hits
PAPI_L2_ICH 0x8000004a No No Level 2 instruction cache hits
PAPI_L3_ICH 0x8000004b No No Level 3 instruction cache hits
PAPI_L1_ICA 0x8000004c No No Level 1 instruction cache accesses
PAPI_L2_ICA 0x8000004d No No Level 2 instruction cache accesses
PAPI_L3_ICA 0x8000004e No No Level 3 instruction cache accesses
PAPI_L1_ICR 0x8000004f No No Level 1 instruction cache reads
PAPI_L2_ICR 0x80000050 No No Level 2 instruction cache reads
PAPI_L3_ICR 0x80000051 No No Level 3 instruction cache reads
PAPI_L1_ICW 0x80000052 No No Level 1 instruction cache writes
PAPI_L2_ICW 0x80000053 No No Level 2 instruction cache writes
PAPI_L3_ICW 0x80000054 No No Level 3 instruction cache writes
PAPI_L1_TCH 0x80000055 No No Level 1 total cache hits
PAPI_L2_TCH 0x80000056 No No Level 2 total cache hits
PAPI_L3_TCH 0x80000057 No No Level 3 total cache hits
PAPI_L1_TCA 0x80000058 No No Level 1 total cache accesses
PAPI_L2_TCA 0x80000059 No No Level 2 total cache accesses
PAPI_L3_TCA 0x8000005a No No Level 3 total cache accesses
PAPI_L1_TCR 0x8000005b No No Level 1 total cache reads
PAPI_L2_TCR 0x8000005c No No Level 2 total cache reads
PAPI_L3_TCR 0x8000005d No No Level 3 total cache reads
PAPI_L1_TCW 0x8000005e No No Level 1 total cache writes
PAPI_L2_TCW 0x8000005f No No Level 2 total cache writes
PAPI_L3_TCW 0x80000060 No No Level 3 total cache writes
PAPI_FML_INS 0x80000061 No No Floating point multiply instructions
PAPI_FAD_INS 0x80000062 No No Floating point add instructions
PAPI_FDV_INS 0x80000063 No No Floating point divide instructions
PAPI_FSQ_INS 0x80000064 No No Floating point square root instructions
PAPI_FNV_INS 0x80000065 No No Floating point inverse instructions
PAPI_FP_OPS 0x80000066 No No Floating point operations
PAPI_SP_OPS 0x80000067 No No Floating point operations; optimized to count scaled single precision vector operations
PAPI_DP_OPS 0x80000068 No No Floating point operations; optimized to count scaled double precision vector operations
PAPI_VEC_SP 0x80000069 No No Single precision vector/SIMD instructions
PAPI_VEC_DP 0x8000006a No No Double precision vector/SIMD instructions
PAPI_REF_CYC 0x8000006b No No Reference clock cycles
--------------------------------------------------------------------------------
Of 108 possible events, 0 are available, of which 0 are derived.
No events detected! Check papi_component_avail to find out why.
所以我按照说明运行了 papi_component_avail:
papi_component_avail
Available components and hardware information.
--------------------------------------------------------------------------------
PAPI version : 6.0.0.0
Operating system : Linux 5.8.0-55-generic
Vendor string and code : AuthenticAMD (2, 0x2)
Model string and code : AMD Ryzen 9 5900 12-Core Processor (33, 0x21)
CPU revision : 0.000000
CPUID : Family/Model/Stepping 25/33/0, 0x19/0x21/0x00
CPU Max MHz : 6084
CPU Min MHz : 2200
Total cores : 24
SMT threads per core : 2
Cores per socket : 12
Sockets : 1
Cores per NUMA region : 24
NUMA regions : 1
Running in a VM : no
Number Hardware Counters : 0
Max Multiplex Counters : 384
Fast counter read (rdpmc): yes
--------------------------------------------------------------------------------
Compiled-in components:
Name: perf_event Linux perf_event CPU counters
\-> Disabled: Unknown libpfm4 related error
Name: perf_event_uncore Linux perf_event CPU uncore and northbridge
\-> Disabled: No uncore PMUs or events found
Active components:
--------------------------------------------------------------------------------
我尝试应用堆栈溢出问题 papi_avail: No events available - 32308175 中解释的修复程序过去它曾在我运行 Intel 6700HQ 的 Ubuntu 18 上运行过，但在这里没有用。当然，问题描述有所不同。我不确定如何解决“未知的 libpfm4 相关错误”错误。
我还尝试使用“apt get install papi 工具”安装当前可用版本的 Papi
sudo apt-get update
sudo apt-get install papi-tools
安装顺利，但我不断收到相同的错误消息。我错过了什么？
最佳答案
您的 CPU 属于 AMD ZEN3 family 的一部分。 libpfm4 似乎从 v4.12.0 开始支持这个 CPU 架构系列。如果您拥有 papi 版本 6.0.0.1 或更低版本，则它附带早于 v4 的内置版本 所以我想 libpfm4 .12.0papi 在这种情况下预计不起作用？
尽管如此，我们在安装 papi 的 master 分支(附带一个 libpfm4 版本，应该支持AMD ZEN3 根据documentation)。
关于linux - Papi_avail 无可用事件 - 未知的 libpfm4 相关错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/67995139/