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Message-Id: <20230515215844.653610-13-irogers@google.com>
Date: Mon, 15 May 2023 14:58:41 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Ian Rogers <irogers@...gle.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Kan Liang <kan.liang@...ux.intel.com>,
Zhengjun Xing <zhengjun.xing@...ux.intel.com>,
John Garry <john.garry@...wei.com>,
Kajol Jain <kjain@...ux.ibm.com>,
Thomas Richter <tmricht@...ux.ibm.com>,
linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Subject: [PATCH v1 12/15] perf vendor events intel: Update snowridgex events
Update snowridgex to v1.21 that marks deprecated a number of events
and adds improves descriptions. The events data was generated by:
https://github.com/intel/perfmon/blob/main/scripts/create_perf_json.py
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/pmu-events/arch/x86/mapfile.csv | 2 +-
.../perf/pmu-events/arch/x86/snowridgex/cache.json | 7 +++++++
.../pmu-events/arch/x86/snowridgex/memory.json | 2 ++
.../perf/pmu-events/arch/x86/snowridgex/other.json | 10 ++++++++++
.../pmu-events/arch/x86/snowridgex/pipeline.json | 3 +++
.../arch/x86/snowridgex/uncore-interconnect.json | 14 +++++++-------
.../pmu-events/arch/x86/snowridgex/uncore-io.json | 8 --------
.../arch/x86/snowridgex/uncore-memory.json | 7 +++----
.../arch/x86/snowridgex/uncore-power.json | 6 +++---
9 files changed, 36 insertions(+), 23 deletions(-)
diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 4731a92af9f9..4a1a2b8d6201 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -28,7 +28,7 @@ GenuineIntel-6-AF,v1.00,sierraforest,core
GenuineIntel-6-(37|4A|4C|4D|5A),v15,silvermont,core
GenuineIntel-6-(4E|5E|8E|9E|A5|A6),v56,skylake,core
GenuineIntel-6-55-[01234],v1.30,skylakex,core
-GenuineIntel-6-86,v1.20,snowridgex,core
+GenuineIntel-6-86,v1.21,snowridgex,core
GenuineIntel-6-8[CD],v1.10,tigerlake,core
GenuineIntel-6-2C,v4,westmereep-dp,core
GenuineIntel-6-25,v3,westmereep-sp,core
diff --git a/tools/perf/pmu-events/arch/x86/snowridgex/cache.json b/tools/perf/pmu-events/arch/x86/snowridgex/cache.json
index 0ab90e3bf76b..c6be60584522 100644
--- a/tools/perf/pmu-events/arch/x86/snowridgex/cache.json
+++ b/tools/perf/pmu-events/arch/x86/snowridgex/cache.json
@@ -72,6 +72,7 @@
"BriefDescription": "Counts the number of cycles the core is stalled due to an instruction cache or TLB miss which hit in the L2, LLC, DRAM or MMIO (Non-DRAM).",
"EventCode": "0x34",
"EventName": "MEM_BOUND_STALLS.IFETCH",
+ "PublicDescription": "Counts the number of cycles the core is stalled due to an instruction cache or translation lookaside buffer (TLB) miss which hit in the L2, LLC, DRAM or MMIO (Non-DRAM).",
"SampleAfterValue": "200003",
"UMask": "0x38"
},
@@ -437,6 +438,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event OCR.DEMAND_DATA_AND_L1PF_RD.L3_HIT",
+ "Deprecated": "1",
"EventCode": "0XB7",
"EventName": "OCR.DEMAND_DATA_RD.L3_HIT",
"MSRIndex": "0x1a6,0x1a7",
@@ -446,6 +448,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event OCR.DEMAND_DATA_AND_L1PF_RD.L3_HIT.SNOOP_HITM",
+ "Deprecated": "1",
"EventCode": "0XB7",
"EventName": "OCR.DEMAND_DATA_RD.L3_HIT.SNOOP_HITM",
"MSRIndex": "0x1a6,0x1a7",
@@ -455,6 +458,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event OCR.DEMAND_DATA_AND_L1PF_RD.L3_HIT.SNOOP_HIT_NO_FWD",
+ "Deprecated": "1",
"EventCode": "0XB7",
"EventName": "OCR.DEMAND_DATA_RD.L3_HIT.SNOOP_HIT_NO_FWD",
"MSRIndex": "0x1a6,0x1a7",
@@ -464,6 +468,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event OCR.DEMAND_DATA_AND_L1PF_RD.L3_HIT.SNOOP_HIT_WITH_FWD",
+ "Deprecated": "1",
"EventCode": "0XB7",
"EventName": "OCR.DEMAND_DATA_RD.L3_HIT.SNOOP_HIT_WITH_FWD",
"MSRIndex": "0x1a6,0x1a7",
@@ -473,6 +478,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event OCR.DEMAND_DATA_AND_L1PF_RD.L3_HIT.SNOOP_MISS",
+ "Deprecated": "1",
"EventCode": "0XB7",
"EventName": "OCR.DEMAND_DATA_RD.L3_HIT.SNOOP_MISS",
"MSRIndex": "0x1a6,0x1a7",
@@ -482,6 +488,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event OCR.DEMAND_DATA_AND_L1PF_RD.L3_HIT.SNOOP_NOT_NEEDED",
+ "Deprecated": "1",
"EventCode": "0XB7",
"EventName": "OCR.DEMAND_DATA_RD.L3_HIT.SNOOP_NOT_NEEDED",
"MSRIndex": "0x1a6,0x1a7",
diff --git a/tools/perf/pmu-events/arch/x86/snowridgex/memory.json b/tools/perf/pmu-events/arch/x86/snowridgex/memory.json
index 18621909d1a9..c02eb0e836ad 100644
--- a/tools/perf/pmu-events/arch/x86/snowridgex/memory.json
+++ b/tools/perf/pmu-events/arch/x86/snowridgex/memory.json
@@ -96,6 +96,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event OCR.DEMAND_DATA_AND_L1PF_RD.L3_MISS",
+ "Deprecated": "1",
"EventCode": "0XB7",
"EventName": "OCR.DEMAND_DATA_RD.L3_MISS",
"MSRIndex": "0x1a6,0x1a7",
@@ -105,6 +106,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event OCR.DEMAND_DATA_AND_L1PF_RD.L3_MISS_LOCAL",
+ "Deprecated": "1",
"EventCode": "0XB7",
"EventName": "OCR.DEMAND_DATA_RD.L3_MISS_LOCAL",
"MSRIndex": "0x1a6,0x1a7",
diff --git a/tools/perf/pmu-events/arch/x86/snowridgex/other.json b/tools/perf/pmu-events/arch/x86/snowridgex/other.json
index 00ae180ded25..fefbc383b840 100644
--- a/tools/perf/pmu-events/arch/x86/snowridgex/other.json
+++ b/tools/perf/pmu-events/arch/x86/snowridgex/other.json
@@ -1,6 +1,7 @@
[
{
"BriefDescription": "This event is deprecated. Refer to new event BUS_LOCK.SELF_LOCKS",
+ "Deprecated": "1",
"EdgeDetect": "1",
"EventCode": "0x63",
"EventName": "BUS_LOCK.ALL",
@@ -16,6 +17,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event BUS_LOCK.BLOCK_CYCLES",
+ "Deprecated": "1",
"EventCode": "0x63",
"EventName": "BUS_LOCK.CYCLES_OTHER_BLOCK",
"SampleAfterValue": "200003",
@@ -23,6 +25,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event BUS_LOCK.LOCK_CYCLES",
+ "Deprecated": "1",
"EventCode": "0x63",
"EventName": "BUS_LOCK.CYCLES_SELF_BLOCK",
"SampleAfterValue": "200003",
@@ -46,6 +49,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event MEM_BOUND_STALLS.LOAD_DRAM_HIT",
+ "Deprecated": "1",
"EventCode": "0x34",
"EventName": "C0_STALLS.LOAD_DRAM_HIT",
"SampleAfterValue": "200003",
@@ -53,6 +57,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event MEM_BOUND_STALLS.LOAD_L2_HIT",
+ "Deprecated": "1",
"EventCode": "0x34",
"EventName": "C0_STALLS.LOAD_L2_HIT",
"SampleAfterValue": "200003",
@@ -60,6 +65,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event MEM_BOUND_STALLS.LOAD_LLC_HIT",
+ "Deprecated": "1",
"EventCode": "0x34",
"EventName": "C0_STALLS.LOAD_LLC_HIT",
"SampleAfterValue": "200003",
@@ -207,6 +213,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event OCR.DEMAND_DATA_AND_L1PF_RD.ANY_RESPONSE",
+ "Deprecated": "1",
"EventCode": "0XB7",
"EventName": "OCR.DEMAND_DATA_RD.ANY_RESPONSE",
"MSRIndex": "0x1a6,0x1a7",
@@ -216,6 +223,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event OCR.DEMAND_DATA_AND_L1PF_RD.DRAM",
+ "Deprecated": "1",
"EventCode": "0XB7",
"EventName": "OCR.DEMAND_DATA_RD.DRAM",
"MSRIndex": "0x1a6,0x1a7",
@@ -225,6 +233,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event OCR.DEMAND_DATA_AND_L1PF_RD.LOCAL_DRAM",
+ "Deprecated": "1",
"EventCode": "0XB7",
"EventName": "OCR.DEMAND_DATA_RD.LOCAL_DRAM",
"MSRIndex": "0x1a6,0x1a7",
@@ -234,6 +243,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event OCR.DEMAND_DATA_AND_L1PF_RD.OUTSTANDING",
+ "Deprecated": "1",
"EventCode": "0XB7",
"EventName": "OCR.DEMAND_DATA_RD.OUTSTANDING",
"MSRIndex": "0x1a6",
diff --git a/tools/perf/pmu-events/arch/x86/snowridgex/pipeline.json b/tools/perf/pmu-events/arch/x86/snowridgex/pipeline.json
index 9dd8c909facc..c483c0838e08 100644
--- a/tools/perf/pmu-events/arch/x86/snowridgex/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/snowridgex/pipeline.json
@@ -165,6 +165,7 @@
},
{
"BriefDescription": "This event is deprecated.",
+ "Deprecated": "1",
"EventCode": "0xcd",
"EventName": "CYCLES_DIV_BUSY.ANY",
"SampleAfterValue": "2000003"
@@ -283,6 +284,7 @@
},
{
"BriefDescription": "This event is deprecated. Refer to new event TOPDOWN_BAD_SPECULATION.FASTNUKE",
+ "Deprecated": "1",
"EventCode": "0x73",
"EventName": "TOPDOWN_BAD_SPECULATION.MONUKE",
"SampleAfterValue": "1000003",
@@ -338,6 +340,7 @@
},
{
"BriefDescription": "This event is deprecated.",
+ "Deprecated": "1",
"EventCode": "0x74",
"EventName": "TOPDOWN_BE_BOUND.STORE_BUFFER",
"SampleAfterValue": "1000003",
diff --git a/tools/perf/pmu-events/arch/x86/snowridgex/uncore-interconnect.json b/tools/perf/pmu-events/arch/x86/snowridgex/uncore-interconnect.json
index de3840078e21..7e2895f7fe3d 100644
--- a/tools/perf/pmu-events/arch/x86/snowridgex/uncore-interconnect.json
+++ b/tools/perf/pmu-events/arch/x86/snowridgex/uncore-interconnect.json
@@ -590,7 +590,7 @@
"EventCode": "0x0C",
"EventName": "UNC_I_TxS_REQUEST_OCCUPANCY",
"PerPkg": "1",
- "PublicDescription": "Outbound Request Queue Occupancy : Accumultes the number of outstanding outbound requests from the IRP to the switch (towards the devices). This can be used in conjuection with the allocations event in order to calculate average latency of outbound requests.",
+ "PublicDescription": "Outbound Request Queue Occupancy : Accumulates the number of outstanding outbound requests from the IRP to the switch (towards the devices). This can be used in conjunction with the allocations event in order to calculate average latency of outbound requests.",
"Unit": "IRP"
},
{
@@ -5570,7 +5570,7 @@
"Unit": "M2M"
},
{
- "BriefDescription": "M2M->iMC WPQ Cycles w/Credits - Regular : Channel 0",
+ "BriefDescription": "M2M->iMC WPQ Cycles w/Credits - Regular : Channel 0",
"EventCode": "0x4D",
"EventName": "UNC_M2M_WPQ_NO_REG_CRD.CHN0",
"PerPkg": "1",
@@ -5578,7 +5578,7 @@
"Unit": "M2M"
},
{
- "BriefDescription": "M2M->iMC WPQ Cycles w/Credits - Regular : Channel 1",
+ "BriefDescription": "M2M->iMC WPQ Cycles w/Credits - Regular : Channel 1",
"EventCode": "0x4D",
"EventName": "UNC_M2M_WPQ_NO_REG_CRD.CHN1",
"PerPkg": "1",
@@ -5586,7 +5586,7 @@
"Unit": "M2M"
},
{
- "BriefDescription": "M2M->iMC WPQ Cycles w/Credits - Regular : Channel 2",
+ "BriefDescription": "M2M->iMC WPQ Cycles w/Credits - Regular : Channel 2",
"EventCode": "0x4D",
"EventName": "UNC_M2M_WPQ_NO_REG_CRD.CHN2",
"PerPkg": "1",
@@ -5594,7 +5594,7 @@
"Unit": "M2M"
},
{
- "BriefDescription": "M2M->iMC WPQ Cycles w/Credits - Special : Channel 0",
+ "BriefDescription": "M2M->iMC WPQ Cycles w/Credits - Special : Channel 0",
"EventCode": "0x4E",
"EventName": "UNC_M2M_WPQ_NO_SPEC_CRD.CHN0",
"PerPkg": "1",
@@ -5602,7 +5602,7 @@
"Unit": "M2M"
},
{
- "BriefDescription": "M2M->iMC WPQ Cycles w/Credits - Special : Channel 1",
+ "BriefDescription": "M2M->iMC WPQ Cycles w/Credits - Special : Channel 1",
"EventCode": "0x4E",
"EventName": "UNC_M2M_WPQ_NO_SPEC_CRD.CHN1",
"PerPkg": "1",
@@ -5610,7 +5610,7 @@
"Unit": "M2M"
},
{
- "BriefDescription": "M2M->iMC WPQ Cycles w/Credits - Special : Channel 2",
+ "BriefDescription": "M2M->iMC WPQ Cycles w/Credits - Special : Channel 2",
"EventCode": "0x4E",
"EventName": "UNC_M2M_WPQ_NO_SPEC_CRD.CHN2",
"PerPkg": "1",
diff --git a/tools/perf/pmu-events/arch/x86/snowridgex/uncore-io.json b/tools/perf/pmu-events/arch/x86/snowridgex/uncore-io.json
index 996028071ee4..ecdd6f0f8e8f 100644
--- a/tools/perf/pmu-events/arch/x86/snowridgex/uncore-io.json
+++ b/tools/perf/pmu-events/arch/x86/snowridgex/uncore-io.json
@@ -34,7 +34,6 @@
"EventCode": "0xff",
"EventName": "UNC_IIO_BANDWIDTH_IN.PART0_FREERUN",
"PerPkg": "1",
- "PublicDescription": "UNC_IIO_BANDWIDTH_IN.PART0_FREERUN",
"UMask": "0x20",
"Unit": "iio_free_running"
},
@@ -43,7 +42,6 @@
"EventCode": "0xff",
"EventName": "UNC_IIO_BANDWIDTH_IN.PART1_FREERUN",
"PerPkg": "1",
- "PublicDescription": "UNC_IIO_BANDWIDTH_IN.PART1_FREERUN",
"UMask": "0x21",
"Unit": "iio_free_running"
},
@@ -52,7 +50,6 @@
"EventCode": "0xff",
"EventName": "UNC_IIO_BANDWIDTH_IN.PART2_FREERUN",
"PerPkg": "1",
- "PublicDescription": "UNC_IIO_BANDWIDTH_IN.PART2_FREERUN",
"UMask": "0x22",
"Unit": "iio_free_running"
},
@@ -61,7 +58,6 @@
"EventCode": "0xff",
"EventName": "UNC_IIO_BANDWIDTH_IN.PART3_FREERUN",
"PerPkg": "1",
- "PublicDescription": "UNC_IIO_BANDWIDTH_IN.PART3_FREERUN",
"UMask": "0x23",
"Unit": "iio_free_running"
},
@@ -70,7 +66,6 @@
"EventCode": "0xff",
"EventName": "UNC_IIO_BANDWIDTH_IN.PART4_FREERUN",
"PerPkg": "1",
- "PublicDescription": "UNC_IIO_BANDWIDTH_IN.PART4_FREERUN",
"UMask": "0x24",
"Unit": "iio_free_running"
},
@@ -79,7 +74,6 @@
"EventCode": "0xff",
"EventName": "UNC_IIO_BANDWIDTH_IN.PART5_FREERUN",
"PerPkg": "1",
- "PublicDescription": "UNC_IIO_BANDWIDTH_IN.PART5_FREERUN",
"UMask": "0x25",
"Unit": "iio_free_running"
},
@@ -88,7 +82,6 @@
"EventCode": "0xff",
"EventName": "UNC_IIO_BANDWIDTH_IN.PART6_FREERUN",
"PerPkg": "1",
- "PublicDescription": "UNC_IIO_BANDWIDTH_IN.PART6_FREERUN",
"UMask": "0x26",
"Unit": "iio_free_running"
},
@@ -97,7 +90,6 @@
"EventCode": "0xff",
"EventName": "UNC_IIO_BANDWIDTH_IN.PART7_FREERUN",
"PerPkg": "1",
- "PublicDescription": "UNC_IIO_BANDWIDTH_IN.PART7_FREERUN",
"UMask": "0x27",
"Unit": "iio_free_running"
},
diff --git a/tools/perf/pmu-events/arch/x86/snowridgex/uncore-memory.json b/tools/perf/pmu-events/arch/x86/snowridgex/uncore-memory.json
index 530e9b71b92a..b80911d498dd 100644
--- a/tools/perf/pmu-events/arch/x86/snowridgex/uncore-memory.json
+++ b/tools/perf/pmu-events/arch/x86/snowridgex/uncore-memory.json
@@ -130,7 +130,6 @@
"EventCode": "0xff",
"EventName": "UNC_M_CLOCKTICKS_FREERUN",
"PerPkg": "1",
- "PublicDescription": "UNC_M_CLOCKTICKS_FREERUN",
"UMask": "0x10",
"Unit": "imc_free_running"
},
@@ -322,7 +321,7 @@
"EventCode": "0x02",
"EventName": "UNC_M_PRE_COUNT.PGT",
"PerPkg": "1",
- "PublicDescription": "DRAM Precharge commands. : Precharge due to page table : Counts the number of DRAM Precharge commands sent on this channel. : Prechages from Page Table",
+ "PublicDescription": "DRAM Precharge commands. : Precharge due to page table : Counts the number of DRAM Precharge commands sent on this channel. : Precharges from Page Table",
"UMask": "0x10",
"Unit": "iMC"
},
@@ -497,7 +496,7 @@
"EventCode": "0x82",
"EventName": "UNC_M_WPQ_OCCUPANCY_PCH0",
"PerPkg": "1",
- "PublicDescription": "Write Pending Queue Occupancy : Accumulates the occupancies of the Write Pending Queue each cycle. This can then be used to calculate both the average queue occupancy (in conjunction with the number of cycles not empty) and the average latency (in conjunction with the number of allocations). The WPQ is used to schedule write out to the memory controller and to track the writes. Requests allocate into the WPQ soon after they enter the memory controller, and need credits for an entry in this buffer before being sent from the HA to the iMC. They deallocate after being issued to DRAM. Write requests themselves are able to complete (from the perspective of the rest of the system) as soon they have posted to the iMC. This is not to be confused with actually performing the write to DRAM. Therefore, the average latency for this queue is actually not useful for deconstruction intermediate write latencies. So, we provide filtering based on if the request has posted or not. By using the not posted filter, we can track how long writes spent in the iMC before completions were sent to the HA. The posted filter, on the other hand, provides information about how much queueing is actually happenning in the iMC for writes before they are actually issued to memory. High average occupancies will generally coincide with high write major mode counts.",
+ "PublicDescription": "Write Pending Queue Occupancy : Accumulates the occupancies of the Write Pending Queue each cycle. This can then be used to calculate both the average queue occupancy (in conjunction with the number of cycles not empty) and the average latency (in conjunction with the number of allocations). The WPQ is used to schedule write out to the memory controller and to track the writes. Requests allocate into the WPQ soon after they enter the memory controller, and need credits for an entry in this buffer before being sent from the HA to the iMC. They deallocate after being issued to DRAM. Write requests themselves are able to complete (from the perspective of the rest of the system) as soon they have posted to the iMC. This is not to be confused with actually performing the write to DRAM. Therefore, the average latency for this queue is actually not useful for deconstruction intermediate write latencies. So, we provide filtering based on if the request has posted or not. By using the not posted filter, we can track how long writes spent in the iMC before completions were sent to the HA. The posted filter, on the other hand, provides information about how much queueing is actually happening in the iMC for writes before they are actually issued to memory. High average occupancies will generally coincide with high write major mode counts.",
"Unit": "iMC"
},
{
@@ -505,7 +504,7 @@
"EventCode": "0x83",
"EventName": "UNC_M_WPQ_OCCUPANCY_PCH1",
"PerPkg": "1",
- "PublicDescription": "Write Pending Queue Occupancy : Accumulates the occupancies of the Write Pending Queue each cycle. This can then be used to calculate both the average queue occupancy (in conjunction with the number of cycles not empty) and the average latency (in conjunction with the number of allocations). The WPQ is used to schedule write out to the memory controller and to track the writes. Requests allocate into the WPQ soon after they enter the memory controller, and need credits for an entry in this buffer before being sent from the HA to the iMC. They deallocate after being issued to DRAM. Write requests themselves are able to complete (from the perspective of the rest of the system) as soon they have posted to the iMC. This is not to be confused with actually performing the write to DRAM. Therefore, the average latency for this queue is actually not useful for deconstruction intermediate write latencies. So, we provide filtering based on if the request has posted or not. By using the not posted filter, we can track how long writes spent in the iMC before completions were sent to the HA. The posted filter, on the other hand, provides information about how much queueing is actually happenning in the iMC for writes before they are actually issued to memory. High average occupancies will generally coincide with high write major mode counts.",
+ "PublicDescription": "Write Pending Queue Occupancy : Accumulates the occupancies of the Write Pending Queue each cycle. This can then be used to calculate both the average queue occupancy (in conjunction with the number of cycles not empty) and the average latency (in conjunction with the number of allocations). The WPQ is used to schedule write out to the memory controller and to track the writes. Requests allocate into the WPQ soon after they enter the memory controller, and need credits for an entry in this buffer before being sent from the HA to the iMC. They deallocate after being issued to DRAM. Write requests themselves are able to complete (from the perspective of the rest of the system) as soon they have posted to the iMC. This is not to be confused with actually performing the write to DRAM. Therefore, the average latency for this queue is actually not useful for deconstruction intermediate write latencies. So, we provide filtering based on if the request has posted or not. By using the not posted filter, we can track how long writes spent in the iMC before completions were sent to the HA. The posted filter, on the other hand, provides information about how much queueing is actually happening in the iMC for writes before they are actually issued to memory. High average occupancies will generally coincide with high write major mode counts.",
"Unit": "iMC"
},
{
diff --git a/tools/perf/pmu-events/arch/x86/snowridgex/uncore-power.json b/tools/perf/pmu-events/arch/x86/snowridgex/uncore-power.json
index 27fc155f1223..a61ffca2dfea 100644
--- a/tools/perf/pmu-events/arch/x86/snowridgex/uncore-power.json
+++ b/tools/perf/pmu-events/arch/x86/snowridgex/uncore-power.json
@@ -149,7 +149,7 @@
"EventCode": "0x80",
"EventName": "UNC_P_POWER_STATE_OCCUPANCY.CORES_C0",
"PerPkg": "1",
- "PublicDescription": "Number of cores in C-State : C0 and C1 : 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 threshholding to generate histograms, or with other PCU events and occupancy triggering to capture other details.",
+ "PublicDescription": "Number of cores in C-State : C0 and C1 : 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"
},
{
@@ -157,7 +157,7 @@
"EventCode": "0x80",
"EventName": "UNC_P_POWER_STATE_OCCUPANCY.CORES_C3",
"PerPkg": "1",
- "PublicDescription": "Number of cores in C-State : C3 : 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 threshholding to generate histograms, or with other PCU events and occupancy triggering to capture other details.",
+ "PublicDescription": "Number of cores in C-State : C3 : 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"
},
{
@@ -165,7 +165,7 @@
"EventCode": "0x80",
"EventName": "UNC_P_POWER_STATE_OCCUPANCY.CORES_C6",
"PerPkg": "1",
- "PublicDescription": "Number of cores in C-State : C6 and C7 : 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 threshholding to generate histograms, or with other PCU events and occupancy triggering to capture other details.",
+ "PublicDescription": "Number of cores in C-State : C6 and C7 : 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"
},
{
--
2.40.1.606.ga4b1b128d6-goog
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