perf vendor events s390: Add metric for TLB and cache
authorThomas Richter <tmricht@linux.ibm.com>
Mon, 13 Mar 2023 08:02:01 +0000 (09:02 +0100)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Tue, 14 Mar 2023 21:36:08 +0000 (18:36 -0300)
commit4c290d4fa3aeed74e37637acaa1a787f194fe43d
treeef05252712140432715591074f670a4b4d8f512d
parent850eea236f8ad4a648cb7997eed8a3c616cc0678
perf vendor events s390: Add metric for TLB and cache

Add metrics for tlb and cache statistics:

- finite_cpi: Cycles per Instructions from Finite cache/memory
- est_cpi: Estimated Instruction Complexity CPI infinite Level 1
- scpl1m: Estimated Sourcing Cycles per Level 1 Miss
- tlb_percent: Estimated TLB CPU percentage of Total CPU
- tlb_miss: Estimated Cycles per TLB Miss

For details about the formulas see this documentation:

  https://www.ibm.com/support/pages/system/files/inline-files/CPU%20MF%20Formulas%20including%20z16%20-%20May%202022_1.pdf

Output after:

  # ./perf stat -M tlb_miss -- dd if=/dev/zero of=/dev/null bs=1M count=10K
  ... dd output removed

  Performance counter stats for 'dd if=/dev/zero of=/dev/null bs=1M count=10K':

           667,726      DTLB2_MISSES             #   440.96 tlb_miss
               198      ITLB2_WRITES
       795,170,260      L1C_TLB2_MISSES
             9,478      ITLB2_MISSES
               820      DTLB2_WRITES
     1,197,126,869      L1D_PENALTY_CYCLES
         2,457,447      L1I_PENALTY_CYCLES

       1.249342187 seconds time elapsed

       0.001030000 seconds user
       1.248105000 seconds sys

  #

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-By: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: https://lore.kernel.org/r/20230313080201.2440201-3-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/pmu-events/arch/s390/cf_z13/transaction.json
tools/perf/pmu-events/arch/s390/cf_z14/transaction.json
tools/perf/pmu-events/arch/s390/cf_z15/transaction.json
tools/perf/pmu-events/arch/s390/cf_z16/transaction.json