2020-05-07 16:31:46

by Paul A. Clarke

[permalink] [raw]
Subject: [PATCH 2/2] perf: Add missing metrics to POWER9 'cpi_breakdown'

From: "Paul A. Clarke" <[email protected]>

Add the following metrics to the POWER9 'cpi_breakdown' metricgroup:
- ict_noslot_br_mpred_cpi
- ict_noslot_br_mpred_icmiss_cpi
- ict_noslot_cyc_other_cpi
- ict_noslot_disp_held_cpi
- ict_noslot_disp_held_hb_full_cpi
- ict_noslot_disp_held_issq_cpi
- ict_noslot_disp_held_other_cpi
- ict_noslot_disp_held_sync_cpi
- ict_noslot_disp_held_tbegin_cpi
- ict_noslot_ic_l2_cpi
- ict_noslot_ic_l3_cpi
- ict_noslot_ic_l3miss_cpi
- ict_noslot_ic_miss_cpi

Signed-off-by: Paul A. Clarke <[email protected]>
---
.../arch/powerpc/power9/metrics.json | 143 ++++++++++--------
1 file changed, 78 insertions(+), 65 deletions(-)

diff --git a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
index 811c2a8c1c9e..6169351a72c8 100644
--- a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
+++ b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
@@ -207,6 +207,84 @@
"MetricGroup": "cpi_breakdown",
"MetricName": "fxu_stall_cpi"
},
+ {
+ "BriefDescription": "Ict empty for this thread due to branch mispred",
+ "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED/PM_RUN_INST_CMPL",
+ "MetricGroup": "cpi_breakdown",
+ "MetricName": "ict_noslot_br_mpred_cpi"
+ },
+ {
+ "BriefDescription": "Ict empty for this thread due to Icache Miss and branch mispred",
+ "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED_ICMISS/PM_RUN_INST_CMPL",
+ "MetricGroup": "cpi_breakdown",
+ "MetricName": "ict_noslot_br_mpred_icmiss_cpi"
+ },
+ {
+ "BriefDescription": "ICT 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",
+ "MetricGroup": "cpi_breakdown",
+ "MetricName": "ict_noslot_cyc_other_cpi"
+ },
+ {
+ "BriefDescription": "Cycles in which the NTC instruciton is held at dispatch for any reason",
+ "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD/PM_RUN_INST_CMPL",
+ "MetricGroup": "cpi_breakdown",
+ "MetricName": "ict_noslot_disp_held_cpi"
+ },
+ {
+ "BriefDescription": "Ict empty for this thread due to dispatch holds because the History Buffer was full. Could be GPR/VSR/VMR/FPR/CR/XVF",
+ "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_HB_FULL/PM_RUN_INST_CMPL",
+ "MetricGroup": "cpi_breakdown",
+ "MetricName": "ict_noslot_disp_held_hb_full_cpi"
+ },
+ {
+ "BriefDescription": "Ict empty for this thread due to dispatch hold on this thread due to Issue q full, BRQ full, XVCF Full, Count cache, Link, Tar full",
+ "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_ISSQ/PM_RUN_INST_CMPL",
+ "MetricGroup": "cpi_breakdown",
+ "MetricName": "ict_noslot_disp_held_issq_cpi"
+ },
+ {
+ "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",
+ "MetricGroup": "cpi_breakdown",
+ "MetricName": "ict_noslot_disp_held_other_cpi"
+ },
+ {
+ "BriefDescription": "Dispatch held due to a synchronizing instruction at dispatch",
+ "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_SYNC/PM_RUN_INST_CMPL",
+ "MetricGroup": "cpi_breakdown",
+ "MetricName": "ict_noslot_disp_held_sync_cpi"
+ },
+ {
+ "BriefDescription": "the NTC instruction is being held at dispatch because it is a tbegin instruction and there is an older tbegin in the pipeline that must complete before the younger tbegin can dispatch",
+ "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_TBEGIN/PM_RUN_INST_CMPL",
+ "MetricGroup": "cpi_breakdown",
+ "MetricName": "ict_noslot_disp_held_tbegin_cpi"
+ },
+ {
+ "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",
+ "MetricGroup": "cpi_breakdown",
+ "MetricName": "ict_noslot_ic_l2_cpi"
+ },
+ {
+ "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from the local L3",
+ "MetricExpr": "PM_ICT_NOSLOT_IC_L3/PM_RUN_INST_CMPL",
+ "MetricGroup": "cpi_breakdown",
+ "MetricName": "ict_noslot_ic_l3_cpi"
+ },
+ {
+ "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from beyond the local L3. The source could be local/remote/distant memory or another core's cache",
+ "MetricExpr": "PM_ICT_NOSLOT_IC_L3MISS/PM_RUN_INST_CMPL",
+ "MetricGroup": "cpi_breakdown",
+ "MetricName": "ict_noslot_ic_l3miss_cpi"
+ },
+ {
+ "BriefDescription": "Ict empty for this thread due to Icache Miss",
+ "MetricExpr": "PM_ICT_NOSLOT_IC_MISS/PM_RUN_INST_CMPL",
+ "MetricGroup": "cpi_breakdown",
+ "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",
"MetricGroup": "cpi_breakdown",
@@ -1819,71 +1897,6 @@
"MetricExpr": "PM_FXU_IDLE / PM_CYC",
"MetricName": "fxu_all_idle"
},
- {
- "BriefDescription": "Ict empty for this thread due to branch mispred",
- "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED/PM_RUN_INST_CMPL",
- "MetricName": "ict_noslot_br_mpred_cpi"
- },
- {
- "BriefDescription": "Ict empty for this thread due to Icache Miss and branch mispred",
- "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED_ICMISS/PM_RUN_INST_CMPL",
- "MetricName": "ict_noslot_br_mpred_icmiss_cpi"
- },
- {
- "BriefDescription": "ICT 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",
- "MetricName": "ict_noslot_cyc_other_cpi"
- },
- {
- "BriefDescription": "Cycles in which the NTC instruciton is held at dispatch for any reason",
- "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD/PM_RUN_INST_CMPL",
- "MetricName": "ict_noslot_disp_held_cpi"
- },
- {
- "BriefDescription": "Ict empty for this thread due to dispatch holds because the History Buffer was full. Could be GPR/VSR/VMR/FPR/CR/XVF",
- "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_HB_FULL/PM_RUN_INST_CMPL",
- "MetricName": "ict_noslot_disp_held_hb_full_cpi"
- },
- {
- "BriefDescription": "Ict empty for this thread due to dispatch hold on this thread due to Issue q full, BRQ full, XVCF Full, Count cache, Link, Tar full",
- "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_ISSQ/PM_RUN_INST_CMPL",
- "MetricName": "ict_noslot_disp_held_issq_cpi"
- },
- {
- "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",
- "MetricName": "ict_noslot_disp_held_other_cpi"
- },
- {
- "BriefDescription": "Dispatch held due to a synchronizing instruction at dispatch",
- "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_SYNC/PM_RUN_INST_CMPL",
- "MetricName": "ict_noslot_disp_held_sync_cpi"
- },
- {
- "BriefDescription": "the NTC instruction is being held at dispatch because it is a tbegin instruction and there is an older tbegin in the pipeline that must complete before the younger tbegin can dispatch",
- "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_TBEGIN/PM_RUN_INST_CMPL",
- "MetricName": "ict_noslot_disp_held_tbegin_cpi"
- },
- {
- "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",
- "MetricName": "ict_noslot_ic_l2_cpi"
- },
- {
- "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from the local L3",
- "MetricExpr": "PM_ICT_NOSLOT_IC_L3/PM_RUN_INST_CMPL",
- "MetricName": "ict_noslot_ic_l3_cpi"
- },
- {
- "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from beyond the local L3. The source could be local/remote/distant memory or another core's cache",
- "MetricExpr": "PM_ICT_NOSLOT_IC_L3MISS/PM_RUN_INST_CMPL",
- "MetricName": "ict_noslot_ic_l3miss_cpi"
- },
- {
- "BriefDescription": "Ict empty for this thread due to Icache Miss",
- "MetricExpr": "PM_ICT_NOSLOT_IC_MISS/PM_RUN_INST_CMPL",
- "MetricName": "ict_noslot_ic_miss_cpi"
- },
{
"BriefDescription": "Rate of IERAT reloads from L2",
"MetricExpr": "PM_IPTEG_FROM_L2 * 100 / PM_RUN_INST_CMPL",
--
2.18.2


2020-05-07 16:59:39

by Arnaldo Carvalho de Melo

[permalink] [raw]
Subject: Re: [PATCH 2/2] perf: Add missing metrics to POWER9 'cpi_breakdown'

Em Thu, May 07, 2020 at 11:28:58AM -0500, Paul A. Clarke escreveu:
> From: "Paul A. Clarke" <[email protected]>
>
> Add the following metrics to the POWER9 'cpi_breakdown' metricgroup:
> - ict_noslot_br_mpred_cpi
> - ict_noslot_br_mpred_icmiss_cpi
> - ict_noslot_cyc_other_cpi
> - ict_noslot_disp_held_cpi
> - ict_noslot_disp_held_hb_full_cpi
> - ict_noslot_disp_held_issq_cpi
> - ict_noslot_disp_held_other_cpi
> - ict_noslot_disp_held_sync_cpi
> - ict_noslot_disp_held_tbegin_cpi
> - ict_noslot_ic_l2_cpi
> - ict_noslot_ic_l3_cpi
> - ict_noslot_ic_l3miss_cpi
> - ict_noslot_ic_miss_cpi

Can folks provide Acked-by or Reviewed-by? Thanks,

- Arnaldo

> Signed-off-by: Paul A. Clarke <[email protected]>
> ---
> .../arch/powerpc/power9/metrics.json | 143 ++++++++++--------
> 1 file changed, 78 insertions(+), 65 deletions(-)
>
> diff --git a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> index 811c2a8c1c9e..6169351a72c8 100644
> --- a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> +++ b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> @@ -207,6 +207,84 @@
> "MetricGroup": "cpi_breakdown",
> "MetricName": "fxu_stall_cpi"
> },
> + {
> + "BriefDescription": "Ict empty for this thread due to branch mispred",
> + "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_br_mpred_cpi"
> + },
> + {
> + "BriefDescription": "Ict empty for this thread due to Icache Miss and branch mispred",
> + "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED_ICMISS/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_br_mpred_icmiss_cpi"
> + },
> + {
> + "BriefDescription": "ICT 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",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_cyc_other_cpi"
> + },
> + {
> + "BriefDescription": "Cycles in which the NTC instruciton is held at dispatch for any reason",
> + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_disp_held_cpi"
> + },
> + {
> + "BriefDescription": "Ict empty for this thread due to dispatch holds because the History Buffer was full. Could be GPR/VSR/VMR/FPR/CR/XVF",
> + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_HB_FULL/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_disp_held_hb_full_cpi"
> + },
> + {
> + "BriefDescription": "Ict empty for this thread due to dispatch hold on this thread due to Issue q full, BRQ full, XVCF Full, Count cache, Link, Tar full",
> + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_ISSQ/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_disp_held_issq_cpi"
> + },
> + {
> + "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",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_disp_held_other_cpi"
> + },
> + {
> + "BriefDescription": "Dispatch held due to a synchronizing instruction at dispatch",
> + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_SYNC/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_disp_held_sync_cpi"
> + },
> + {
> + "BriefDescription": "the NTC instruction is being held at dispatch because it is a tbegin instruction and there is an older tbegin in the pipeline that must complete before the younger tbegin can dispatch",
> + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_TBEGIN/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_disp_held_tbegin_cpi"
> + },
> + {
> + "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",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_ic_l2_cpi"
> + },
> + {
> + "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from the local L3",
> + "MetricExpr": "PM_ICT_NOSLOT_IC_L3/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_ic_l3_cpi"
> + },
> + {
> + "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from beyond the local L3. The source could be local/remote/distant memory or another core's cache",
> + "MetricExpr": "PM_ICT_NOSLOT_IC_L3MISS/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_ic_l3miss_cpi"
> + },
> + {
> + "BriefDescription": "Ict empty for this thread due to Icache Miss",
> + "MetricExpr": "PM_ICT_NOSLOT_IC_MISS/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "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",
> "MetricGroup": "cpi_breakdown",
> @@ -1819,71 +1897,6 @@
> "MetricExpr": "PM_FXU_IDLE / PM_CYC",
> "MetricName": "fxu_all_idle"
> },
> - {
> - "BriefDescription": "Ict empty for this thread due to branch mispred",
> - "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_br_mpred_cpi"
> - },
> - {
> - "BriefDescription": "Ict empty for this thread due to Icache Miss and branch mispred",
> - "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED_ICMISS/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_br_mpred_icmiss_cpi"
> - },
> - {
> - "BriefDescription": "ICT 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",
> - "MetricName": "ict_noslot_cyc_other_cpi"
> - },
> - {
> - "BriefDescription": "Cycles in which the NTC instruciton is held at dispatch for any reason",
> - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_disp_held_cpi"
> - },
> - {
> - "BriefDescription": "Ict empty for this thread due to dispatch holds because the History Buffer was full. Could be GPR/VSR/VMR/FPR/CR/XVF",
> - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_HB_FULL/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_disp_held_hb_full_cpi"
> - },
> - {
> - "BriefDescription": "Ict empty for this thread due to dispatch hold on this thread due to Issue q full, BRQ full, XVCF Full, Count cache, Link, Tar full",
> - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_ISSQ/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_disp_held_issq_cpi"
> - },
> - {
> - "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",
> - "MetricName": "ict_noslot_disp_held_other_cpi"
> - },
> - {
> - "BriefDescription": "Dispatch held due to a synchronizing instruction at dispatch",
> - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_SYNC/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_disp_held_sync_cpi"
> - },
> - {
> - "BriefDescription": "the NTC instruction is being held at dispatch because it is a tbegin instruction and there is an older tbegin in the pipeline that must complete before the younger tbegin can dispatch",
> - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_TBEGIN/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_disp_held_tbegin_cpi"
> - },
> - {
> - "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",
> - "MetricName": "ict_noslot_ic_l2_cpi"
> - },
> - {
> - "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from the local L3",
> - "MetricExpr": "PM_ICT_NOSLOT_IC_L3/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_ic_l3_cpi"
> - },
> - {
> - "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from beyond the local L3. The source could be local/remote/distant memory or another core's cache",
> - "MetricExpr": "PM_ICT_NOSLOT_IC_L3MISS/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_ic_l3miss_cpi"
> - },
> - {
> - "BriefDescription": "Ict empty for this thread due to Icache Miss",
> - "MetricExpr": "PM_ICT_NOSLOT_IC_MISS/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_ic_miss_cpi"
> - },
> {
> "BriefDescription": "Rate of IERAT reloads from L2",
> "MetricExpr": "PM_IPTEG_FROM_L2 * 100 / PM_RUN_INST_CMPL",
> --
> 2.18.2
>

--

- Arnaldo

2020-05-08 07:07:05

by kajoljain

[permalink] [raw]
Subject: Re: [PATCH 2/2] perf: Add missing metrics to POWER9 'cpi_breakdown'



On 5/7/20 9:58 PM, Paul A. Clarke wrote:
> From: "Paul A. Clarke" <[email protected]>
>
> Add the following metrics to the POWER9 'cpi_breakdown' metricgroup:
> - ict_noslot_br_mpred_cpi
> - ict_noslot_br_mpred_icmiss_cpi
> - ict_noslot_cyc_other_cpi
> - ict_noslot_disp_held_cpi
> - ict_noslot_disp_held_hb_full_cpi
> - ict_noslot_disp_held_issq_cpi
> - ict_noslot_disp_held_other_cpi
> - ict_noslot_disp_held_sync_cpi
> - ict_noslot_disp_held_tbegin_cpi
> - ict_noslot_ic_l2_cpi
> - ict_noslot_ic_l3_cpi
> - ict_noslot_ic_l3miss_cpi
> - ict_noslot_ic_miss_cpi
>
> Signed-off-by: Paul A. Clarke <[email protected]>

Reviewed-by: Kajol Jain <[email protected]>

Thanks,
Kajol Jain
> ---
> .../arch/powerpc/power9/metrics.json | 143 ++++++++++--------
> 1 file changed, 78 insertions(+), 65 deletions(-)
>
> diff --git a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> index 811c2a8c1c9e..6169351a72c8 100644
> --- a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> +++ b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> @@ -207,6 +207,84 @@
> "MetricGroup": "cpi_breakdown",
> "MetricName": "fxu_stall_cpi"
> },
> + {
> + "BriefDescription": "Ict empty for this thread due to branch mispred",
> + "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_br_mpred_cpi"
> + },
> + {
> + "BriefDescription": "Ict empty for this thread due to Icache Miss and branch mispred",
> + "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED_ICMISS/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_br_mpred_icmiss_cpi"
> + },
> + {
> + "BriefDescription": "ICT 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",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_cyc_other_cpi"
> + },
> + {
> + "BriefDescription": "Cycles in which the NTC instruciton is held at dispatch for any reason",
> + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_disp_held_cpi"
> + },
> + {
> + "BriefDescription": "Ict empty for this thread due to dispatch holds because the History Buffer was full. Could be GPR/VSR/VMR/FPR/CR/XVF",
> + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_HB_FULL/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_disp_held_hb_full_cpi"
> + },
> + {
> + "BriefDescription": "Ict empty for this thread due to dispatch hold on this thread due to Issue q full, BRQ full, XVCF Full, Count cache, Link, Tar full",
> + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_ISSQ/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_disp_held_issq_cpi"
> + },
> + {
> + "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",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_disp_held_other_cpi"
> + },
> + {
> + "BriefDescription": "Dispatch held due to a synchronizing instruction at dispatch",
> + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_SYNC/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_disp_held_sync_cpi"
> + },
> + {
> + "BriefDescription": "the NTC instruction is being held at dispatch because it is a tbegin instruction and there is an older tbegin in the pipeline that must complete before the younger tbegin can dispatch",
> + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_TBEGIN/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_disp_held_tbegin_cpi"
> + },
> + {
> + "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",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_ic_l2_cpi"
> + },
> + {
> + "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from the local L3",
> + "MetricExpr": "PM_ICT_NOSLOT_IC_L3/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_ic_l3_cpi"
> + },
> + {
> + "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from beyond the local L3. The source could be local/remote/distant memory or another core's cache",
> + "MetricExpr": "PM_ICT_NOSLOT_IC_L3MISS/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "MetricName": "ict_noslot_ic_l3miss_cpi"
> + },
> + {
> + "BriefDescription": "Ict empty for this thread due to Icache Miss",
> + "MetricExpr": "PM_ICT_NOSLOT_IC_MISS/PM_RUN_INST_CMPL",
> + "MetricGroup": "cpi_breakdown",
> + "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",
> "MetricGroup": "cpi_breakdown",
> @@ -1819,71 +1897,6 @@
> "MetricExpr": "PM_FXU_IDLE / PM_CYC",
> "MetricName": "fxu_all_idle"
> },
> - {
> - "BriefDescription": "Ict empty for this thread due to branch mispred",
> - "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_br_mpred_cpi"
> - },
> - {
> - "BriefDescription": "Ict empty for this thread due to Icache Miss and branch mispred",
> - "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED_ICMISS/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_br_mpred_icmiss_cpi"
> - },
> - {
> - "BriefDescription": "ICT 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",
> - "MetricName": "ict_noslot_cyc_other_cpi"
> - },
> - {
> - "BriefDescription": "Cycles in which the NTC instruciton is held at dispatch for any reason",
> - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_disp_held_cpi"
> - },
> - {
> - "BriefDescription": "Ict empty for this thread due to dispatch holds because the History Buffer was full. Could be GPR/VSR/VMR/FPR/CR/XVF",
> - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_HB_FULL/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_disp_held_hb_full_cpi"
> - },
> - {
> - "BriefDescription": "Ict empty for this thread due to dispatch hold on this thread due to Issue q full, BRQ full, XVCF Full, Count cache, Link, Tar full",
> - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_ISSQ/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_disp_held_issq_cpi"
> - },
> - {
> - "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",
> - "MetricName": "ict_noslot_disp_held_other_cpi"
> - },
> - {
> - "BriefDescription": "Dispatch held due to a synchronizing instruction at dispatch",
> - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_SYNC/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_disp_held_sync_cpi"
> - },
> - {
> - "BriefDescription": "the NTC instruction is being held at dispatch because it is a tbegin instruction and there is an older tbegin in the pipeline that must complete before the younger tbegin can dispatch",
> - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_TBEGIN/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_disp_held_tbegin_cpi"
> - },
> - {
> - "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",
> - "MetricName": "ict_noslot_ic_l2_cpi"
> - },
> - {
> - "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from the local L3",
> - "MetricExpr": "PM_ICT_NOSLOT_IC_L3/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_ic_l3_cpi"
> - },
> - {
> - "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from beyond the local L3. The source could be local/remote/distant memory or another core's cache",
> - "MetricExpr": "PM_ICT_NOSLOT_IC_L3MISS/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_ic_l3miss_cpi"
> - },
> - {
> - "BriefDescription": "Ict empty for this thread due to Icache Miss",
> - "MetricExpr": "PM_ICT_NOSLOT_IC_MISS/PM_RUN_INST_CMPL",
> - "MetricName": "ict_noslot_ic_miss_cpi"
> - },
> {
> "BriefDescription": "Rate of IERAT reloads from L2",
> "MetricExpr": "PM_IPTEG_FROM_L2 * 100 / PM_RUN_INST_CMPL",
>

2020-05-10 06:31:32

by Ian Rogers

[permalink] [raw]
Subject: Re: [PATCH 2/2] perf: Add missing metrics to POWER9 'cpi_breakdown'

On Fri, May 8, 2020 at 12:05 AM kajoljain <[email protected]> wrote:
> On 5/7/20 9:58 PM, Paul A. Clarke wrote:
> > From: "Paul A. Clarke" <[email protected]>
> >
> > Add the following metrics to the POWER9 'cpi_breakdown' metricgroup:
> > - ict_noslot_br_mpred_cpi
> > - ict_noslot_br_mpred_icmiss_cpi
> > - ict_noslot_cyc_other_cpi
> > - ict_noslot_disp_held_cpi
> > - ict_noslot_disp_held_hb_full_cpi
> > - ict_noslot_disp_held_issq_cpi
> > - ict_noslot_disp_held_other_cpi
> > - ict_noslot_disp_held_sync_cpi
> > - ict_noslot_disp_held_tbegin_cpi
> > - ict_noslot_ic_l2_cpi
> > - ict_noslot_ic_l3_cpi
> > - ict_noslot_ic_l3miss_cpi
> > - ict_noslot_ic_miss_cpi
> >
> > Signed-off-by: Paul A. Clarke <[email protected]>
>
> Reviewed-by: Kajol Jain <[email protected]>

Tested with:
https://lore.kernel.org/lkml/[email protected]/
Tested-by: Ian Rogers <[email protected]>

Thanks,
Ian

> Thanks,
> Kajol Jain
> > ---
> > .../arch/powerpc/power9/metrics.json | 143 ++++++++++--------
> > 1 file changed, 78 insertions(+), 65 deletions(-)
> >
> > diff --git a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> > index 811c2a8c1c9e..6169351a72c8 100644
> > --- a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> > +++ b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> > @@ -207,6 +207,84 @@
> > "MetricGroup": "cpi_breakdown",
> > "MetricName": "fxu_stall_cpi"
> > },
> > + {
> > + "BriefDescription": "Ict empty for this thread due to branch mispred",
> > + "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED/PM_RUN_INST_CMPL",
> > + "MetricGroup": "cpi_breakdown",
> > + "MetricName": "ict_noslot_br_mpred_cpi"
> > + },
> > + {
> > + "BriefDescription": "Ict empty for this thread due to Icache Miss and branch mispred",
> > + "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED_ICMISS/PM_RUN_INST_CMPL",
> > + "MetricGroup": "cpi_breakdown",
> > + "MetricName": "ict_noslot_br_mpred_icmiss_cpi"
> > + },
> > + {
> > + "BriefDescription": "ICT 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",
> > + "MetricGroup": "cpi_breakdown",
> > + "MetricName": "ict_noslot_cyc_other_cpi"
> > + },
> > + {
> > + "BriefDescription": "Cycles in which the NTC instruciton is held at dispatch for any reason",
> > + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD/PM_RUN_INST_CMPL",
> > + "MetricGroup": "cpi_breakdown",
> > + "MetricName": "ict_noslot_disp_held_cpi"
> > + },
> > + {
> > + "BriefDescription": "Ict empty for this thread due to dispatch holds because the History Buffer was full. Could be GPR/VSR/VMR/FPR/CR/XVF",
> > + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_HB_FULL/PM_RUN_INST_CMPL",
> > + "MetricGroup": "cpi_breakdown",
> > + "MetricName": "ict_noslot_disp_held_hb_full_cpi"
> > + },
> > + {
> > + "BriefDescription": "Ict empty for this thread due to dispatch hold on this thread due to Issue q full, BRQ full, XVCF Full, Count cache, Link, Tar full",
> > + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_ISSQ/PM_RUN_INST_CMPL",
> > + "MetricGroup": "cpi_breakdown",
> > + "MetricName": "ict_noslot_disp_held_issq_cpi"
> > + },
> > + {
> > + "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",
> > + "MetricGroup": "cpi_breakdown",
> > + "MetricName": "ict_noslot_disp_held_other_cpi"
> > + },
> > + {
> > + "BriefDescription": "Dispatch held due to a synchronizing instruction at dispatch",
> > + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_SYNC/PM_RUN_INST_CMPL",
> > + "MetricGroup": "cpi_breakdown",
> > + "MetricName": "ict_noslot_disp_held_sync_cpi"
> > + },
> > + {
> > + "BriefDescription": "the NTC instruction is being held at dispatch because it is a tbegin instruction and there is an older tbegin in the pipeline that must complete before the younger tbegin can dispatch",
> > + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_TBEGIN/PM_RUN_INST_CMPL",
> > + "MetricGroup": "cpi_breakdown",
> > + "MetricName": "ict_noslot_disp_held_tbegin_cpi"
> > + },
> > + {
> > + "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",
> > + "MetricGroup": "cpi_breakdown",
> > + "MetricName": "ict_noslot_ic_l2_cpi"
> > + },
> > + {
> > + "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from the local L3",
> > + "MetricExpr": "PM_ICT_NOSLOT_IC_L3/PM_RUN_INST_CMPL",
> > + "MetricGroup": "cpi_breakdown",
> > + "MetricName": "ict_noslot_ic_l3_cpi"
> > + },
> > + {
> > + "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from beyond the local L3. The source could be local/remote/distant memory or another core's cache",
> > + "MetricExpr": "PM_ICT_NOSLOT_IC_L3MISS/PM_RUN_INST_CMPL",
> > + "MetricGroup": "cpi_breakdown",
> > + "MetricName": "ict_noslot_ic_l3miss_cpi"
> > + },
> > + {
> > + "BriefDescription": "Ict empty for this thread due to Icache Miss",
> > + "MetricExpr": "PM_ICT_NOSLOT_IC_MISS/PM_RUN_INST_CMPL",
> > + "MetricGroup": "cpi_breakdown",
> > + "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",
> > "MetricGroup": "cpi_breakdown",
> > @@ -1819,71 +1897,6 @@
> > "MetricExpr": "PM_FXU_IDLE / PM_CYC",
> > "MetricName": "fxu_all_idle"
> > },
> > - {
> > - "BriefDescription": "Ict empty for this thread due to branch mispred",
> > - "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED/PM_RUN_INST_CMPL",
> > - "MetricName": "ict_noslot_br_mpred_cpi"
> > - },
> > - {
> > - "BriefDescription": "Ict empty for this thread due to Icache Miss and branch mispred",
> > - "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED_ICMISS/PM_RUN_INST_CMPL",
> > - "MetricName": "ict_noslot_br_mpred_icmiss_cpi"
> > - },
> > - {
> > - "BriefDescription": "ICT 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",
> > - "MetricName": "ict_noslot_cyc_other_cpi"
> > - },
> > - {
> > - "BriefDescription": "Cycles in which the NTC instruciton is held at dispatch for any reason",
> > - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD/PM_RUN_INST_CMPL",
> > - "MetricName": "ict_noslot_disp_held_cpi"
> > - },
> > - {
> > - "BriefDescription": "Ict empty for this thread due to dispatch holds because the History Buffer was full. Could be GPR/VSR/VMR/FPR/CR/XVF",
> > - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_HB_FULL/PM_RUN_INST_CMPL",
> > - "MetricName": "ict_noslot_disp_held_hb_full_cpi"
> > - },
> > - {
> > - "BriefDescription": "Ict empty for this thread due to dispatch hold on this thread due to Issue q full, BRQ full, XVCF Full, Count cache, Link, Tar full",
> > - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_ISSQ/PM_RUN_INST_CMPL",
> > - "MetricName": "ict_noslot_disp_held_issq_cpi"
> > - },
> > - {
> > - "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",
> > - "MetricName": "ict_noslot_disp_held_other_cpi"
> > - },
> > - {
> > - "BriefDescription": "Dispatch held due to a synchronizing instruction at dispatch",
> > - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_SYNC/PM_RUN_INST_CMPL",
> > - "MetricName": "ict_noslot_disp_held_sync_cpi"
> > - },
> > - {
> > - "BriefDescription": "the NTC instruction is being held at dispatch because it is a tbegin instruction and there is an older tbegin in the pipeline that must complete before the younger tbegin can dispatch",
> > - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_TBEGIN/PM_RUN_INST_CMPL",
> > - "MetricName": "ict_noslot_disp_held_tbegin_cpi"
> > - },
> > - {
> > - "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",
> > - "MetricName": "ict_noslot_ic_l2_cpi"
> > - },
> > - {
> > - "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from the local L3",
> > - "MetricExpr": "PM_ICT_NOSLOT_IC_L3/PM_RUN_INST_CMPL",
> > - "MetricName": "ict_noslot_ic_l3_cpi"
> > - },
> > - {
> > - "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from beyond the local L3. The source could be local/remote/distant memory or another core's cache",
> > - "MetricExpr": "PM_ICT_NOSLOT_IC_L3MISS/PM_RUN_INST_CMPL",
> > - "MetricName": "ict_noslot_ic_l3miss_cpi"
> > - },
> > - {
> > - "BriefDescription": "Ict empty for this thread due to Icache Miss",
> > - "MetricExpr": "PM_ICT_NOSLOT_IC_MISS/PM_RUN_INST_CMPL",
> > - "MetricName": "ict_noslot_ic_miss_cpi"
> > - },
> > {
> > "BriefDescription": "Rate of IERAT reloads from L2",
> > "MetricExpr": "PM_IPTEG_FROM_L2 * 100 / PM_RUN_INST_CMPL",
> >

2020-05-11 15:33:58

by Arnaldo Carvalho de Melo

[permalink] [raw]
Subject: Re: [PATCH 2/2] perf: Add missing metrics to POWER9 'cpi_breakdown'

Em Sat, May 09, 2020 at 11:26:56PM -0700, Ian Rogers escreveu:
> On Fri, May 8, 2020 at 12:05 AM kajoljain <[email protected]> wrote:
> > On 5/7/20 9:58 PM, Paul A. Clarke wrote:
> > > From: "Paul A. Clarke" <[email protected]>
> > >
> > > Add the following metrics to the POWER9 'cpi_breakdown' metricgroup:
> > > - ict_noslot_br_mpred_cpi
> > > - ict_noslot_br_mpred_icmiss_cpi
> > > - ict_noslot_cyc_other_cpi
> > > - ict_noslot_disp_held_cpi
> > > - ict_noslot_disp_held_hb_full_cpi
> > > - ict_noslot_disp_held_issq_cpi
> > > - ict_noslot_disp_held_other_cpi
> > > - ict_noslot_disp_held_sync_cpi
> > > - ict_noslot_disp_held_tbegin_cpi
> > > - ict_noslot_ic_l2_cpi
> > > - ict_noslot_ic_l3_cpi
> > > - ict_noslot_ic_l3miss_cpi
> > > - ict_noslot_ic_miss_cpi
> > >
> > > Signed-off-by: Paul A. Clarke <[email protected]>
> >
> > Reviewed-by: Kajol Jain <[email protected]>
>
> Tested with:
> https://lore.kernel.org/lkml/[email protected]/
> Tested-by: Ian Rogers <[email protected]>

Thanks, looking up that series now,

- Arnaldo

> Thanks,
> Ian
>
> > Thanks,
> > Kajol Jain
> > > ---
> > > .../arch/powerpc/power9/metrics.json | 143 ++++++++++--------
> > > 1 file changed, 78 insertions(+), 65 deletions(-)
> > >
> > > diff --git a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> > > index 811c2a8c1c9e..6169351a72c8 100644
> > > --- a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> > > +++ b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> > > @@ -207,6 +207,84 @@
> > > "MetricGroup": "cpi_breakdown",
> > > "MetricName": "fxu_stall_cpi"
> > > },
> > > + {
> > > + "BriefDescription": "Ict empty for this thread due to branch mispred",
> > > + "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED/PM_RUN_INST_CMPL",
> > > + "MetricGroup": "cpi_breakdown",
> > > + "MetricName": "ict_noslot_br_mpred_cpi"
> > > + },
> > > + {
> > > + "BriefDescription": "Ict empty for this thread due to Icache Miss and branch mispred",
> > > + "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED_ICMISS/PM_RUN_INST_CMPL",
> > > + "MetricGroup": "cpi_breakdown",
> > > + "MetricName": "ict_noslot_br_mpred_icmiss_cpi"
> > > + },
> > > + {
> > > + "BriefDescription": "ICT 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",
> > > + "MetricGroup": "cpi_breakdown",
> > > + "MetricName": "ict_noslot_cyc_other_cpi"
> > > + },
> > > + {
> > > + "BriefDescription": "Cycles in which the NTC instruciton is held at dispatch for any reason",
> > > + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD/PM_RUN_INST_CMPL",
> > > + "MetricGroup": "cpi_breakdown",
> > > + "MetricName": "ict_noslot_disp_held_cpi"
> > > + },
> > > + {
> > > + "BriefDescription": "Ict empty for this thread due to dispatch holds because the History Buffer was full. Could be GPR/VSR/VMR/FPR/CR/XVF",
> > > + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_HB_FULL/PM_RUN_INST_CMPL",
> > > + "MetricGroup": "cpi_breakdown",
> > > + "MetricName": "ict_noslot_disp_held_hb_full_cpi"
> > > + },
> > > + {
> > > + "BriefDescription": "Ict empty for this thread due to dispatch hold on this thread due to Issue q full, BRQ full, XVCF Full, Count cache, Link, Tar full",
> > > + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_ISSQ/PM_RUN_INST_CMPL",
> > > + "MetricGroup": "cpi_breakdown",
> > > + "MetricName": "ict_noslot_disp_held_issq_cpi"
> > > + },
> > > + {
> > > + "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",
> > > + "MetricGroup": "cpi_breakdown",
> > > + "MetricName": "ict_noslot_disp_held_other_cpi"
> > > + },
> > > + {
> > > + "BriefDescription": "Dispatch held due to a synchronizing instruction at dispatch",
> > > + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_SYNC/PM_RUN_INST_CMPL",
> > > + "MetricGroup": "cpi_breakdown",
> > > + "MetricName": "ict_noslot_disp_held_sync_cpi"
> > > + },
> > > + {
> > > + "BriefDescription": "the NTC instruction is being held at dispatch because it is a tbegin instruction and there is an older tbegin in the pipeline that must complete before the younger tbegin can dispatch",
> > > + "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_TBEGIN/PM_RUN_INST_CMPL",
> > > + "MetricGroup": "cpi_breakdown",
> > > + "MetricName": "ict_noslot_disp_held_tbegin_cpi"
> > > + },
> > > + {
> > > + "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",
> > > + "MetricGroup": "cpi_breakdown",
> > > + "MetricName": "ict_noslot_ic_l2_cpi"
> > > + },
> > > + {
> > > + "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from the local L3",
> > > + "MetricExpr": "PM_ICT_NOSLOT_IC_L3/PM_RUN_INST_CMPL",
> > > + "MetricGroup": "cpi_breakdown",
> > > + "MetricName": "ict_noslot_ic_l3_cpi"
> > > + },
> > > + {
> > > + "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from beyond the local L3. The source could be local/remote/distant memory or another core's cache",
> > > + "MetricExpr": "PM_ICT_NOSLOT_IC_L3MISS/PM_RUN_INST_CMPL",
> > > + "MetricGroup": "cpi_breakdown",
> > > + "MetricName": "ict_noslot_ic_l3miss_cpi"
> > > + },
> > > + {
> > > + "BriefDescription": "Ict empty for this thread due to Icache Miss",
> > > + "MetricExpr": "PM_ICT_NOSLOT_IC_MISS/PM_RUN_INST_CMPL",
> > > + "MetricGroup": "cpi_breakdown",
> > > + "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",
> > > "MetricGroup": "cpi_breakdown",
> > > @@ -1819,71 +1897,6 @@
> > > "MetricExpr": "PM_FXU_IDLE / PM_CYC",
> > > "MetricName": "fxu_all_idle"
> > > },
> > > - {
> > > - "BriefDescription": "Ict empty for this thread due to branch mispred",
> > > - "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED/PM_RUN_INST_CMPL",
> > > - "MetricName": "ict_noslot_br_mpred_cpi"
> > > - },
> > > - {
> > > - "BriefDescription": "Ict empty for this thread due to Icache Miss and branch mispred",
> > > - "MetricExpr": "PM_ICT_NOSLOT_BR_MPRED_ICMISS/PM_RUN_INST_CMPL",
> > > - "MetricName": "ict_noslot_br_mpred_icmiss_cpi"
> > > - },
> > > - {
> > > - "BriefDescription": "ICT 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",
> > > - "MetricName": "ict_noslot_cyc_other_cpi"
> > > - },
> > > - {
> > > - "BriefDescription": "Cycles in which the NTC instruciton is held at dispatch for any reason",
> > > - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD/PM_RUN_INST_CMPL",
> > > - "MetricName": "ict_noslot_disp_held_cpi"
> > > - },
> > > - {
> > > - "BriefDescription": "Ict empty for this thread due to dispatch holds because the History Buffer was full. Could be GPR/VSR/VMR/FPR/CR/XVF",
> > > - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_HB_FULL/PM_RUN_INST_CMPL",
> > > - "MetricName": "ict_noslot_disp_held_hb_full_cpi"
> > > - },
> > > - {
> > > - "BriefDescription": "Ict empty for this thread due to dispatch hold on this thread due to Issue q full, BRQ full, XVCF Full, Count cache, Link, Tar full",
> > > - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_ISSQ/PM_RUN_INST_CMPL",
> > > - "MetricName": "ict_noslot_disp_held_issq_cpi"
> > > - },
> > > - {
> > > - "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",
> > > - "MetricName": "ict_noslot_disp_held_other_cpi"
> > > - },
> > > - {
> > > - "BriefDescription": "Dispatch held due to a synchronizing instruction at dispatch",
> > > - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_SYNC/PM_RUN_INST_CMPL",
> > > - "MetricName": "ict_noslot_disp_held_sync_cpi"
> > > - },
> > > - {
> > > - "BriefDescription": "the NTC instruction is being held at dispatch because it is a tbegin instruction and there is an older tbegin in the pipeline that must complete before the younger tbegin can dispatch",
> > > - "MetricExpr": "PM_ICT_NOSLOT_DISP_HELD_TBEGIN/PM_RUN_INST_CMPL",
> > > - "MetricName": "ict_noslot_disp_held_tbegin_cpi"
> > > - },
> > > - {
> > > - "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",
> > > - "MetricName": "ict_noslot_ic_l2_cpi"
> > > - },
> > > - {
> > > - "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from the local L3",
> > > - "MetricExpr": "PM_ICT_NOSLOT_IC_L3/PM_RUN_INST_CMPL",
> > > - "MetricName": "ict_noslot_ic_l3_cpi"
> > > - },
> > > - {
> > > - "BriefDescription": "Ict empty for this thread due to icache misses that were sourced from beyond the local L3. The source could be local/remote/distant memory or another core's cache",
> > > - "MetricExpr": "PM_ICT_NOSLOT_IC_L3MISS/PM_RUN_INST_CMPL",
> > > - "MetricName": "ict_noslot_ic_l3miss_cpi"
> > > - },
> > > - {
> > > - "BriefDescription": "Ict empty for this thread due to Icache Miss",
> > > - "MetricExpr": "PM_ICT_NOSLOT_IC_MISS/PM_RUN_INST_CMPL",
> > > - "MetricName": "ict_noslot_ic_miss_cpi"
> > > - },
> > > {
> > > "BriefDescription": "Rate of IERAT reloads from L2",
> > > "MetricExpr": "PM_IPTEG_FROM_L2 * 100 / PM_RUN_INST_CMPL",
> > >

--

- Arnaldo

2020-05-13 08:31:16

by Michael Ellerman

[permalink] [raw]
Subject: Re: [PATCH 2/2] perf: Add missing metrics to POWER9 'cpi_breakdown'

"Paul A. Clarke" <[email protected]> writes:
> From: "Paul A. Clarke" <[email protected]>
>
> Add the following metrics to the POWER9 'cpi_breakdown' metricgroup:
> - ict_noslot_br_mpred_cpi
> - ict_noslot_br_mpred_icmiss_cpi
> - ict_noslot_cyc_other_cpi
> - ict_noslot_disp_held_cpi
> - ict_noslot_disp_held_hb_full_cpi
> - ict_noslot_disp_held_issq_cpi
> - ict_noslot_disp_held_other_cpi
> - ict_noslot_disp_held_sync_cpi
> - ict_noslot_disp_held_tbegin_cpi
> - ict_noslot_ic_l2_cpi
> - ict_noslot_ic_l3_cpi
> - ict_noslot_ic_l3miss_cpi
> - ict_noslot_ic_miss_cpi
>
> Signed-off-by: Paul A. Clarke <[email protected]>
> ---
> .../arch/powerpc/power9/metrics.json | 143 ++++++++++--------
> 1 file changed, 78 insertions(+), 65 deletions(-)
>
> diff --git a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> index 811c2a8c1c9e..6169351a72c8 100644
> --- a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> +++ b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> @@ -207,6 +207,84 @@
> "MetricGroup": "cpi_breakdown",
> "MetricName": "fxu_stall_cpi"
> },
> + {
> + "BriefDescription": "Ict empty for this thread due to branch mispred",

I think you're just moving this, not adding it. But ICT is an acronym,
so it should be spelled ICT not Ict.

It might be worth expanding it too?

cheers

2020-05-14 21:06:52

by Paul A. Clarke

[permalink] [raw]
Subject: Re: [PATCH 2/2] perf: Add missing metrics to POWER9 'cpi_breakdown'

On Wed, May 13, 2020 at 06:28:31PM +1000, Michael Ellerman wrote:
> "Paul A. Clarke" <[email protected]> writes:
> > Add the following metrics to the POWER9 'cpi_breakdown' metricgroup:
> > - ict_noslot_br_mpred_cpi
> > - ict_noslot_br_mpred_icmiss_cpi
> > - ict_noslot_cyc_other_cpi
> > - ict_noslot_disp_held_cpi
> > - ict_noslot_disp_held_hb_full_cpi
> > - ict_noslot_disp_held_issq_cpi
> > - ict_noslot_disp_held_other_cpi
> > - ict_noslot_disp_held_sync_cpi
> > - ict_noslot_disp_held_tbegin_cpi
> > - ict_noslot_ic_l2_cpi
> > - ict_noslot_ic_l3_cpi
> > - ict_noslot_ic_l3miss_cpi
> > - ict_noslot_ic_miss_cpi
> >
> > Signed-off-by: Paul A. Clarke <[email protected]>
> > ---
> > .../arch/powerpc/power9/metrics.json | 143 ++++++++++--------
> > 1 file changed, 78 insertions(+), 65 deletions(-)
> >
> > diff --git a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> > index 811c2a8c1c9e..6169351a72c8 100644
> > --- a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> > +++ b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
> > @@ -207,6 +207,84 @@
> > "MetricGroup": "cpi_breakdown",
> > "MetricName": "fxu_stall_cpi"
> > },
> > + {
> > + "BriefDescription": "Ict empty for this thread due to branch mispred",
>
> I think you're just moving this, not adding it. But ICT is an acronym,
> so it should be spelled ICT not Ict.
>
> It might be worth expanding it too?

This was 98% produced through automated means, translating an existing
XML file to perf's JSON format.

I've gotten the upstream XML file changed to include the "ICT" metrics
in the "cpi_breakdown" group already, and can request the changes you
suggest also be incorporated.

For the time being, can we move forward with the patch as-is?

PC

2020-05-16 12:04:57

by Michael Ellerman

[permalink] [raw]
Subject: Re: [PATCH 2/2] perf: Add missing metrics to POWER9 'cpi_breakdown'

"Paul A. Clarke" <[email protected]> writes:
> On Wed, May 13, 2020 at 06:28:31PM +1000, Michael Ellerman wrote:
>> "Paul A. Clarke" <[email protected]> writes:
>> > Add the following metrics to the POWER9 'cpi_breakdown' metricgroup:
>> > - ict_noslot_br_mpred_cpi
>> > - ict_noslot_br_mpred_icmiss_cpi
>> > - ict_noslot_cyc_other_cpi
>> > - ict_noslot_disp_held_cpi
>> > - ict_noslot_disp_held_hb_full_cpi
>> > - ict_noslot_disp_held_issq_cpi
>> > - ict_noslot_disp_held_other_cpi
>> > - ict_noslot_disp_held_sync_cpi
>> > - ict_noslot_disp_held_tbegin_cpi
>> > - ict_noslot_ic_l2_cpi
>> > - ict_noslot_ic_l3_cpi
>> > - ict_noslot_ic_l3miss_cpi
>> > - ict_noslot_ic_miss_cpi
>> >
>> > Signed-off-by: Paul A. Clarke <[email protected]>
>> > ---
>> > .../arch/powerpc/power9/metrics.json | 143 ++++++++++--------
>> > 1 file changed, 78 insertions(+), 65 deletions(-)
>> >
>> > diff --git a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
>> > index 811c2a8c1c9e..6169351a72c8 100644
>> > --- a/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
>> > +++ b/tools/perf/pmu-events/arch/powerpc/power9/metrics.json
>> > @@ -207,6 +207,84 @@
>> > "MetricGroup": "cpi_breakdown",
>> > "MetricName": "fxu_stall_cpi"
>> > },
>> > + {
>> > + "BriefDescription": "Ict empty for this thread due to branch mispred",
>>
>> I think you're just moving this, not adding it. But ICT is an acronym,
>> so it should be spelled ICT not Ict.
>>
>> It might be worth expanding it too?
>
> This was 98% produced through automated means, translating an existing
> XML file to perf's JSON format.
>
> I've gotten the upstream XML file changed to include the "ICT" metrics
> in the "cpi_breakdown" group already, and can request the changes you
> suggest also be incorporated.
>
> For the time being, can we move forward with the patch as-is?

Fine by me.

cheers