[PATCH v2 09/10] perf vendor events intel: Update sapphirerapids events to v1.35

Ian Rogers
2025-09-25T17:27:59Z

Update sapphirerapids events to v1.35 released in:
https://github.com/intel/perfmon/commit/94ed947d7b5966e50a685118f69e8942976ec397
https://github.com/intel/perfmon/commit/9d993957a2a8fc1d4f843013c979a413141e9839

Also adds cpu_cstate_c0 and cpu_cstate_c6 metrics.

Event json automatically generated by:
https://github.com/intel/perfmon/blob/main/scripts/create_perf_json.py

Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/pmu-events/arch/x86/mapfile.csv | 2 +-
.../arch/x86/sapphirerapids/cache.json | 63 +++++++++++++++++++
.../arch/x86/sapphirerapids/spr-metrics.json | 12 ++++
.../arch/x86/sapphirerapids/uncore-cache.json | 11 ++++
.../x86/sapphirerapids/uncore-memory.json | 22 +++++++
.../arch/x86/sapphirerapids/uncore-power.json | 2 -
6 files changed, 109 insertions(+), 3 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 3a15a0f75b96..3938555d661e 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -29,7 +29,7 @@ GenuineIntel-6-2E,v4,nehalemex,core
GenuineIntel-6-CC,v1.00,pantherlake,core
GenuineIntel-6-A7,v1.04,rocketlake,core
GenuineIntel-6-2A,v19,sandybridge,core
-GenuineIntel-6-8F,v1.30,sapphirerapids,core
+GenuineIntel-6-8F,v1.35,sapphirerapids,core
GenuineIntel-6-AF,v1.11,sierraforest,core
GenuineIntel-6-(37|4A|4C|4D|5A),v15,silvermont,core
GenuineIntel-6-(4E|5E|8E|9E|A5|A6),v59,skylake,core
diff --git a/tools/perf/pmu-events/arch/x86/sapphirerapids/cache.json b/tools/perf/pmu-events/arch/x86/sapphirerapids/cache.json
index a30af5140e6c..c66324d41a89 100644
--- a/tools/perf/pmu-events/arch/x86/sapphirerapids/cache.json
+++ b/tools/perf/pmu-events/arch/x86/sapphirerapids/cache.json
@@ -1,4 +1,67 @@
[
+ {
+ "BriefDescription": "Hit snoop reply with data, line invalidated.",
+ "Counter": "0,1,2,3",
+ "EventCode": "0x27",
+ "EventName": "CORE_SNOOP_RESPONSE.I_FWD_FE",
+ "PublicDescription": "Counts responses to snoops indicating the line will now be (I)nvalidated: removed from this core's cache, after the data is forwarded back to the requestor and indicating the data was found unmodified in the (FE) Forward or Exclusive State in this cores caches cache. A single snoop response from the core counts on all hyperthreads of the core.",
+ "SampleAfterValue": "1000003",
+ "UMask": "0x20"
+ },
+ {
+ "BriefDescription": "HitM snoop reply with data, line invalidated.",
+ "Counter": "0,1,2,3",
+ "EventCode": "0x27",
+ "EventName": "CORE_SNOOP_RESPONSE.I_FWD_M",
+ "PublicDescription": "Counts responses to snoops indicating the line will now be (I)nvalidated: removed from this core's caches, after the data is forwarded back to the requestor, and indicating the data was found modified(M) in this cores caches cache (aka HitM response). A single snoop response from the core counts on all hyperthreads of the core.",
+ "SampleAfterValue": "1000003",
+ "UMask": "0x10"
+ },
+ {
+ "BriefDescription": "Hit snoop reply without sending the data, line invalidated.",
+ "Counter": "0,1,2,3",
+ "EventCode": "0x27",
+ "EventName": "CORE_SNOOP_RESPONSE.I_HIT_FSE",
+ "PublicDescription": "Counts responses to snoops indicating the line will now be (I)nvalidated in this core's caches without forwarded back to the requestor. The line was in Forward, Shared or Exclusive (FSE) state in this cores caches. A single snoop response from the core counts on all hyperthreads of the core.",
+ "SampleAfterValue": "1000003",
+ "UMask": "0x2"
+ },
+ {
+ "BriefDescription": "Line not found snoop reply",
+ "Counter": "0,1,2,3",
+ "EventCode": "0x27",
+ "EventName": "CORE_SNOOP_RESPONSE.MISS",
+ "PublicDescription": "Counts responses to snoops indicating that the data was not found (IHitI) in this core's caches. A single snoop response from the core counts on all hyperthreads of the Core.",
+ "SampleAfterValue": "1000003",
+ "UMask": "0x1"
+ },
+ {
+ "BriefDescription": "Hit snoop reply with data, line kept in Shared state.",
+ "Counter": "0,1,2,3",
+ "EventCode": "0x27",
+ "EventName": "CORE_SNOOP_RESPONSE.S_FWD_FE",
+ "PublicDescription": "Counts responses to snoops indicating the line may be kept on this core in the (S)hared state, after the data is forwarded back to the requestor, initially the data was found in the cache in the (FS) Forward or Shared state. A single snoop response from the core counts on all hyperthreads of the core.",
+ "SampleAfterValue": "1000003",
+ "UMask": "0x40"
+ },
+ {
+ "BriefDescription": "HitM snoop reply with data, line kept in Shared state",
+ "Counter": "0,1,2,3",
+ "EventCode": "0x27",
+ "EventName": "CORE_SNOOP_RESPONSE.S_FWD_M",
+ "PublicDescription": "Counts responses to snoops indicating the line may be kept on this core in the (S)hared state, after the data is forwarded back to the requestor, initially the data was found in the cache in the (M)odified state. A single snoop response from the core counts on all hyperthreads of the core.",
+ "SampleAfterValue": "1000003",
+ "UMask": "0x8"
+ },
+ {
+ "BriefDescription": "Hit snoop reply without sending the data, line kept in Shared state.",
+ "Counter": "0,1,2,3",
+ "EventCode": "0x27",
+ "EventName": "CORE_SNOOP_RESPONSE.S_HIT_FSE",
+ "PublicDescription": "Counts responses to snoops indicating the line was kept on this core in the (S)hared state, and that the data was found unmodified but not forwarded back to the requestor, initially the data was found in the cache in the (FSE) Forward, Shared state or Exclusive state. A single snoop response from the core counts on all hyperthreads of the core.",
+ "SampleAfterValue": "1000003",
+ "UMask": "0x4"
+ },
{
"BriefDescription": "L1D.HWPF_MISS",
"Counter": "0,1,2,3",
diff --git a/tools/perf/pmu-events/arch/x86/sapphirerapids/spr-metrics.json b/tools/perf/pmu-events/arch/x86/sapphirerapids/spr-metrics.json
index 8a18d6e01ef4..b6a28227a58a 100644
--- a/tools/perf/pmu-events/arch/x86/sapphirerapids/spr-metrics.json
+++ b/tools/perf/pmu-events/arch/x86/sapphirerapids/spr-metrics.json
@@ -39,6 +39,18 @@
"MetricName": "cpi",
"ScaleUnit": "1per_instr"
},
+ {
+ "BriefDescription": "The average number of cores that are in cstate C0 as observed by the power control unit (PCU)",
+ "MetricExpr": "UNC_P_POWER_STATE_OCCUPANCY_CORES_C0 / UNC_P_CLOCKTICKS * #num_packages",
+ "MetricGroup": "cpu_cstate",
+ "MetricName": "cpu_cstate_c0"
+ },
+ {
+ "BriefDescription": "The average number of cores are in cstate C6 as observed by the power control unit (PCU)",
+ "MetricExpr": "UNC_P_POWER_STATE_OCCUPANCY_CORES_C6 / UNC_P_CLOCKTICKS * #num_packages",
+ "MetricGroup": "cpu_cstate",
+ "MetricName": "cpu_cstate_c6"
+ },
{
"BriefDescription": "CPU operating frequency (in GHz)",
"MetricExpr": "CPU_CLK_UNHALTED.THREAD / CPU_CLK_UNHALTED.REF_TSC * #SYSTEM_TSC_FREQ / 1e9",
diff --git a/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-cache.json b/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-cache.json
index a38db3e253f2..1bdda3c3ccbf 100644
--- a/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-cache.json
+++ b/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-cache.json
@@ -311,6 +311,17 @@
"UMask": "0x2",
"Unit": "CHA"
},
+ {
+ "BriefDescription": "Distress signal asserted : DPT Remote",
+ "Counter": "0,1,2,3",
+ "EventCode": "0xaf",
+ "EventName": "UNC_CHA_DISTRESS_ASSERTED.DPT_NONLOCAL",
+ "Experimental": "1",
+ "PerPkg": "1",
+ "PublicDescription": "Distress signal asserted : DPT Remote : Counts the number of cycles either the local or incoming distress signals are asserted. : Dynamic Prefetch Throttle received by this tile",
+ "UMask": "0x8",
+ "Unit": "CHA"
+ },
{
"BriefDescription": "Egress Blocking due to Ordering requirements : Down",
"Counter": "0,1,2,3",
diff --git a/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-memory.json b/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-memory.json
index 90f61c9511fc..30044177ccf8 100644
--- a/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-memory.json
+++ b/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-memory.json
@@ -3129,6 +3129,28 @@
"PublicDescription": "Clock-Enabled Self-Refresh : Counts the number of cycles when the iMC is in self-refresh and the iMC still has a clock. This happens in some package C-states. For example, the PCU may ask the iMC to enter self-refresh even though some of the cores are still processing. One use of this is for Monroe technology. Self-refresh is required during package C3 and C6, but there is no clock in the iMC at this time, so it is not possible to count these cases.",
"Unit": "iMC"
},
+ {
+ "BriefDescription": "Throttle Cycles for Rank 0",
+ "Counter": "0,1,2,3",
+ "EventCode": "0x46",
+ "EventName": "UNC_M_POWER_THROTTLE_CYCLES.SLOT0",
+ "Experimental": "1",
+ "PerPkg": "1",
+ "PublicDescription": "Throttle Cycles for Rank 0 : Counts the number of cycles while the iMC is being throttled by either thermal constraints or by the PCU throttling. It is not possible to distinguish between the two. This can be filtered by rank. If multiple ranks are selected and are being throttled at the same time, the counter will only increment by 1. : Thermal throttling is performed per DIMM. We support 3 DIMMs per channel. This ID allows us to filter by ID.",
+ "UMask": "0x1",
+ "Unit": "iMC"
+ },
+ {
+ "BriefDescription": "Throttle Cycles for Rank 0",
+ "Counter": "0,1,2,3",
+ "EventCode": "0x46",
+ "EventName": "UNC_M_POWER_THROTTLE_CYCLES.SLOT1",
+ "Experimental": "1",
+ "PerPkg": "1",
+ "PublicDescription": "Throttle Cycles for Rank 0 : Counts the number of cycles while the iMC is being throttled by either thermal constraints or by the PCU throttling. It is not possible to distinguish between the two. This can be filtered by rank. If multiple ranks are selected and are being throttled at the same time, the counter will only increment by 1.",
+ "UMask": "0x2",
+ "Unit": "iMC"
+ },
{
"BriefDescription": "Precharge due to read, write, underfill, or PGT.",
"Counter": "0,1,2,3",
diff --git a/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-power.json b/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-power.json
index 9482ddaea4d1..71c35b165a3e 100644
--- a/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-power.json
+++ b/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-power.json
@@ -178,7 +178,6 @@
"Counter": "0,1,2,3",
"EventCode": "0x35",
"EventName": "UNC_P_POWER_STATE_OCCUPANCY_CORES_C0",
- "Experimental": "1",
"PerPkg": "1",
"PublicDescription": "Number of cores in C0 : This is an occupancy event that tracks the number of cores that are in the chosen C-State. It can be used by itself to get the average number of cores in that C-state with thresholding to generate histograms, or with other PCU events and occupancy triggering to capture other details.",
"Unit": "PCU"
@@ -198,7 +197,6 @@
"Counter": "0,1,2,3",
"EventCode": "0x37",
"EventName": "UNC_P_POWER_STATE_OCCUPANCY_CORES_C6",
- "Experimental": "1",
"PerPkg": "1",
"PublicDescription": "Number of cores in C6 : This is an occupancy event that tracks the number of cores that are in the chosen C-State. It can be used by itself to get the average number of cores in that C-state with thresholding to generate histograms, or with other PCU events and occupancy triggering to capture other details.",
"Unit": "PCU"
--
2.51.0.536.g15c5d4f767-goog