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Date:   Thu, 13 Aug 2020 17:21:55 -0500
From:   "Paul A. Clarke" <pc@...ibm.com>
To:     acme@...nel.org
Cc:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        jolsa@...hat.com, kjain@...ux.ibm.com, maddy@...ux.ibm.com,
        irogers@...gle.com
Subject: [PATCH] perf stat: update POWER9 metrics to utilize other metrics

These changes take advantage of the new capability added in
merge commit 00e4db51259a5f936fec1424b884f029479d3981
"Allow using computed metrics in calculating other metrics".

The net is a simplification of the expressions for a handful
of metrics, but no functional change.

Signed-off-by: Paul A. Clarke <pc@...ibm.com>
---
 .../arch/powerpc/power9/metrics.json          | 48 +++++++++----------
 1 file changed, 24 insertions(+), 24 deletions(-)

diff --git a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
index 80816d6402e9..f8784c608479 100644
--- a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
+++ b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
@@ -60,7 +60,7 @@
     },
     {
         "BriefDescription": "Stalls due to short latency decimal floating ops.",
-        "MetricExpr": "(PM_CMPLU_STALL_DFU - PM_CMPLU_STALL_DFLONG)/PM_RUN_INST_CMPL",
+        "MetricExpr": "dfu_stall_cpi - dflong_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "dfu_other_stall_cpi"
     },
@@ -72,7 +72,7 @@
     },
     {
         "BriefDescription": "Completion stall by Dcache miss which resolved off node memory/cache",
-        "MetricExpr": "(PM_CMPLU_STALL_DMISS_L3MISS - PM_CMPLU_STALL_DMISS_L21_L31 - PM_CMPLU_STALL_DMISS_LMEM - PM_CMPLU_STALL_DMISS_REMOTE)/PM_RUN_INST_CMPL",
+        "MetricExpr": "dmiss_non_local_stall_cpi - dmiss_remote_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "dmiss_distant_stall_cpi"
     },
@@ -90,7 +90,7 @@
     },
     {
         "BriefDescription": "Completion stall due to cache miss that resolves in the L2 or L3 without conflict",
-        "MetricExpr": "(PM_CMPLU_STALL_DMISS_L2L3 - PM_CMPLU_STALL_DMISS_L2L3_CONFLICT)/PM_RUN_INST_CMPL",
+        "MetricExpr": "dmiss_l2l3_stall_cpi - dmiss_l2l3_conflict_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "dmiss_l2l3_noconflict_stall_cpi"
     },
@@ -114,7 +114,7 @@
     },
     {
         "BriefDescription": "Completion stall by Dcache miss which resolved outside of local memory",
-        "MetricExpr": "(PM_CMPLU_STALL_DMISS_L3MISS - PM_CMPLU_STALL_DMISS_L21_L31 - PM_CMPLU_STALL_DMISS_LMEM)/PM_RUN_INST_CMPL",
+        "MetricExpr": "dmiss_l3miss_stall_cpi - dmiss_l21_l31_stall_cpi - dmiss_lmem_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "dmiss_non_local_stall_cpi"
     },
@@ -126,7 +126,7 @@
     },
     {
         "BriefDescription": "Stalls due to short latency double precision ops.",
-        "MetricExpr": "(PM_CMPLU_STALL_DP - PM_CMPLU_STALL_DPLONG)/PM_RUN_INST_CMPL",
+        "MetricExpr": "dp_stall_cpi - dplong_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "dp_other_stall_cpi"
     },
@@ -155,7 +155,7 @@
         "MetricName": "emq_full_stall_cpi"
     },
     {
-        "MetricExpr": "(PM_CMPLU_STALL_ERAT_MISS + PM_CMPLU_STALL_EMQ_FULL)/PM_RUN_INST_CMPL",
+        "MetricExpr": "erat_miss_stall_cpi + emq_full_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "emq_stall_cpi"
     },
@@ -173,7 +173,7 @@
     },
     {
         "BriefDescription": "Completion stall due to execution units for other reasons.",
-        "MetricExpr": "(PM_CMPLU_STALL_EXEC_UNIT - PM_CMPLU_STALL_FXU - PM_CMPLU_STALL_DP - PM_CMPLU_STALL_DFU - PM_CMPLU_STALL_PM - PM_CMPLU_STALL_CRYPTO - PM_CMPLU_STALL_VFXU - PM_CMPLU_STALL_VDP)/PM_RUN_INST_CMPL",
+        "MetricExpr": "exec_unit_stall_cpi - scalar_stall_cpi - vector_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "exec_unit_other_stall_cpi"
     },
@@ -197,7 +197,7 @@
     },
     {
         "BriefDescription": "Stalls due to short latency integer ops",
-        "MetricExpr": "(PM_CMPLU_STALL_FXU - PM_CMPLU_STALL_FXLONG)/PM_RUN_INST_CMPL",
+        "MetricExpr": "fxu_stall_cpi - fxlong_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "fxu_other_stall_cpi"
     },
@@ -221,7 +221,7 @@
     },
     {
         "BriefDescription": "Instruction Completion Table other stalls",
-        "MetricExpr": "(PM_ICT_NOSLOT_CYC - PM_ICT_NOSLOT_IC_MISS - PM_ICT_NOSLOT_BR_MPRED_ICMISS - PM_ICT_NOSLOT_BR_MPRED - PM_ICT_NOSLOT_DISP_HELD)/PM_RUN_INST_CMPL",
+        "MetricExpr": "nothing_dispatched_cpi - ict_noslot_ic_miss_cpi - ict_noslot_br_mpred_icmiss_cpi - ict_noslot_br_mpred_cpi - ict_noslot_disp_held_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "ict_noslot_cyc_other_cpi"
     },
@@ -245,7 +245,7 @@
     },
     {
         "BriefDescription": "ICT_NOSLOT_DISP_HELD_OTHER_CPI",
-        "MetricExpr": "(PM_ICT_NOSLOT_DISP_HELD - PM_ICT_NOSLOT_DISP_HELD_HB_FULL - PM_ICT_NOSLOT_DISP_HELD_SYNC - PM_ICT_NOSLOT_DISP_HELD_TBEGIN - PM_ICT_NOSLOT_DISP_HELD_ISSQ)/PM_RUN_INST_CMPL",
+        "MetricExpr": "ict_noslot_disp_held_cpi - ict_noslot_disp_held_hb_full_cpi - ict_noslot_disp_held_sync_cpi - ict_noslot_disp_held_tbegin_cpi - ict_noslot_disp_held_issq_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "ict_noslot_disp_held_other_cpi"
     },
@@ -263,7 +263,7 @@
     },
     {
         "BriefDescription": "ICT_NOSLOT_IC_L2_CPI",
-        "MetricExpr": "(PM_ICT_NOSLOT_IC_MISS - PM_ICT_NOSLOT_IC_L3 - PM_ICT_NOSLOT_IC_L3MISS)/PM_RUN_INST_CMPL",
+        "MetricExpr": "ict_noslot_ic_miss_cpi - ict_noslot_ic_l3_cpi - ict_noslot_ic_l3miss_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "ict_noslot_ic_l2_cpi"
     },
@@ -286,7 +286,7 @@
         "MetricName": "ict_noslot_ic_miss_cpi"
     },
     {
-        "MetricExpr": "(PM_NTC_ISSUE_HELD_DARQ_FULL + PM_NTC_ISSUE_HELD_ARB + PM_NTC_ISSUE_HELD_OTHER)/PM_RUN_INST_CMPL",
+        "MetricExpr": "ntc_issue_held_darq_full_cpi + ntc_issue_held_arb_cpi + ntc_issue_held_other_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "issue_hold_cpi"
     },
@@ -327,7 +327,7 @@
         "MetricName": "lrq_other_stall_cpi"
     },
     {
-        "MetricExpr": "(PM_CMPLU_STALL_LMQ_FULL + PM_CMPLU_STALL_ST_FWD + PM_CMPLU_STALL_LHS + PM_CMPLU_STALL_LSU_MFSPR + PM_CMPLU_STALL_LARX + PM_CMPLU_STALL_LRQ_OTHER)/PM_RUN_INST_CMPL",
+        "MetricExpr": "lmq_full_stall_cpi + st_fwd_stall_cpi + lhs_stall_cpi + lsu_mfspr_stall_cpi + larx_stall_cpi + lrq_other_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "lrq_stall_cpi"
     },
@@ -338,7 +338,7 @@
         "MetricName": "lsaq_arb_stall_cpi"
     },
     {
-        "MetricExpr": "(PM_CMPLU_STALL_LRQ_FULL + PM_CMPLU_STALL_SRQ_FULL + PM_CMPLU_STALL_LSAQ_ARB)/PM_RUN_INST_CMPL",
+        "MetricExpr": "lrq_full_stall_cpi + srq_full_stall_cpi + lsaq_arb_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "lsaq_stall_cpi"
     },
@@ -362,7 +362,7 @@
     },
     {
         "BriefDescription": "Completion LSU stall for other reasons",
-        "MetricExpr": "(PM_CMPLU_STALL_LSU - PM_CMPLU_STALL_LSU_FIN - PM_CMPLU_STALL_STORE_FINISH - PM_CMPLU_STALL_STORE_DATA - PM_CMPLU_STALL_EIEIO - PM_CMPLU_STALL_STCX - PM_CMPLU_STALL_SLB - PM_CMPLU_STALL_TEND - PM_CMPLU_STALL_PASTE - PM_CMPLU_STALL_TLBIE - PM_CMPLU_STALL_STORE_PIPE_ARB - PM_CMPLU_STALL_STORE_FIN_ARB - PM_CMPLU_STALL_LOAD_FINISH + PM_CMPLU_STALL_DCACHE_MISS - PM_CMPLU_STALL_LMQ_FULL - PM_CMPLU_STALL_ST_FWD - PM_CMPLU_STALL_LHS - PM_CMPLU_STALL_LSU_MFSPR - PM_CMPLU_STALL_LARX - PM_CMPLU_STALL_LRQ_OTHER + PM_CMPLU_STALL_ERAT_MISS + PM_CMPLU_STALL_EMQ_FULL - PM_CMPLU_STALL_LRQ_FULL - PM_CMPLU_STALL_SRQ_FULL - PM_CMPLU_STALL_LSAQ_ARB) / PM_RUN_INST_CMPL",
+        "MetricExpr": "lsu_stall_cpi - lsu_fin_stall_cpi - store_finish_stall_cpi - srq_stall_cpi - load_finish_stall_cpi + lsu_stall_dcache_miss_cpi - lrq_stall_cpi + emq_stall_cpi - lsaq_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "lsu_other_stall_cpi"
     },
@@ -434,13 +434,13 @@
     },
     {
         "BriefDescription": "Cycles unaccounted for.",
-        "MetricExpr": "(PM_RUN_CYC - PM_1PLUS_PPC_CMPL - PM_CMPLU_STALL_THRD - PM_CMPLU_STALL - PM_ICT_NOSLOT_CYC)/PM_RUN_INST_CMPL",
+        "MetricExpr": "run_cpi - completion_cpi - thread_block_stall_cpi - stall_cpi - nothing_dispatched_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "other_cpi"
     },
     {
         "BriefDescription": "Completion stall for other reasons",
-        "MetricExpr": "(PM_CMPLU_STALL - PM_CMPLU_STALL_NTC_DISP_FIN - PM_CMPLU_STALL_NTC_FLUSH - PM_CMPLU_STALL_LSU - PM_CMPLU_STALL_EXEC_UNIT - PM_CMPLU_STALL_BRU)/PM_RUN_INST_CMPL",
+        "MetricExpr": "stall_cpi - ntc_disp_fin_stall_cpi - ntc_flush_stall_cpi - lsu_stall_cpi - exec_unit_stall_cpi - bru_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "other_stall_cpi"
     },
@@ -469,7 +469,7 @@
         "MetricName": "run_cyc_cpi"
     },
     {
-        "MetricExpr": "(PM_CMPLU_STALL_FXU + PM_CMPLU_STALL_DP + PM_CMPLU_STALL_DFU + PM_CMPLU_STALL_PM + PM_CMPLU_STALL_CRYPTO)/PM_RUN_INST_CMPL",
+        "MetricExpr": "fxu_stall_cpi + dp_stall_cpi + dfu_stall_cpi + pm_stall_cpi + crypto_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "scalar_stall_cpi"
     },
@@ -492,7 +492,7 @@
         "MetricName": "srq_full_stall_cpi"
     },
     {
-        "MetricExpr": "(PM_CMPLU_STALL_STORE_DATA + PM_CMPLU_STALL_EIEIO + PM_CMPLU_STALL_STCX + PM_CMPLU_STALL_SLB + PM_CMPLU_STALL_TEND + PM_CMPLU_STALL_PASTE + PM_CMPLU_STALL_TLBIE + PM_CMPLU_STALL_STORE_PIPE_ARB + PM_CMPLU_STALL_STORE_FIN_ARB)/PM_RUN_INST_CMPL",
+        "MetricExpr": "store_data_stall_cpi + eieio_stall_cpi + stcx_stall_cpi + slb_stall_cpi + tend_stall_cpi + paste_stall_cpi + tlbie_stall_cpi + store_pipe_arb_stall_cpi + store_fin_arb_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "srq_stall_cpi"
     },
@@ -558,7 +558,7 @@
     },
     {
         "BriefDescription": "Vector stalls due to small latency double precision ops",
-        "MetricExpr": "(PM_CMPLU_STALL_VDP - PM_CMPLU_STALL_VDPLONG)/PM_RUN_INST_CMPL",
+        "MetricExpr": "vdp_stall_cpi - vdplong_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "vdp_other_stall_cpi"
     },
@@ -575,7 +575,7 @@
         "MetricName": "vdplong_stall_cpi"
     },
     {
-        "MetricExpr": "(PM_CMPLU_STALL_VFXU + PM_CMPLU_STALL_VDP)/PM_RUN_INST_CMPL",
+        "MetricExpr": "vfxu_stall_cpi + vdp_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "vector_stall_cpi"
     },
@@ -587,7 +587,7 @@
     },
     {
         "BriefDescription": "Vector stalls due to small latency integer ops",
-        "MetricExpr": "(PM_CMPLU_STALL_VFXU - PM_CMPLU_STALL_VFXLONG)/PM_RUN_INST_CMPL",
+        "MetricExpr": "vfxu_stall_cpi - vfxlong_stall_cpi",
         "MetricGroup": "cpi_breakdown",
         "MetricName": "vfxu_other_stall_cpi"
     },
@@ -1844,7 +1844,7 @@
     },
     {
         "BriefDescription": "% of DL1 reloads from Private L3, other core per Inst",
-        "MetricExpr": "(PM_DATA_FROM_L31_MOD + PM_DATA_FROM_L31_SHR) * 100 / PM_RUN_INST_CMPL",
+        "MetricExpr": "dl1_reload_from_l31_mod_rate_percent + dl1_reload_from_l31_shr_rate_percent",
         "MetricName": "dl1_reload_from_l31_rate_percent"
     },
     {
@@ -1979,7 +1979,7 @@
     },
     {
         "BriefDescription": "Completion stall because a different thread was using the completion pipe",
-        "MetricExpr": "(PM_CMPLU_STALL_THRD - PM_CMPLU_STALL_EXCEPTION - PM_CMPLU_STALL_ANY_SYNC - PM_CMPLU_STALL_SYNC_PMU_INT - PM_CMPLU_STALL_SPEC_FINISH - PM_CMPLU_STALL_FLUSH_ANY_THREAD - PM_CMPLU_STALL_LSU_FLUSH_NEXT - PM_CMPLU_STALL_NESTED_TBEGIN - PM_CMPLU_STALL_NESTED_TEND - PM_CMPLU_STALL_MTFPSCR)/PM_RUN_INST_CMPL",
+        "MetricExpr": "thread_block_stall_cpi - exception_stall_cpi - any_sync_stall_cpi - sync_pmu_int_stall_cpi - spec_finish_stall_cpi - flush_any_thread_stall_cpi - lsu_flush_next_stall_cpi - nested_tbegin_stall_cpi - nested_tend_stall_cpi - mtfpscr_stall_cpi",
         "MetricName": "other_thread_cmpl_stall"
     },
     {
-- 
2.18.4

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