[
{
"BriefDescription": "Counts the number of request that were not accepted into the L2Q because the L2Q is FULL.",
- "Counter": "0,1",
"EventCode": "0x31",
"EventName": "CORE_REJECT_L2Q.ALL",
"PublicDescription": "Counts the number of (demand and L1 prefetchers) core requests rejected by the L2Q due to a full or nearly full w condition which likely indicates back pressure from L2Q. It also counts requests that would have gone directly to the XQ, but are rejected due to a full or nearly full condition, indicating back pressure from the IDI link. The L2Q may also reject transactions from a core to insure fairness between cores, or to delay a core?s dirty eviction when the address conflicts incoming external snoops. (Note that L2 prefetcher requests that are dropped are not counted by this event.)",
},
{
"BriefDescription": "Cycles code-fetch stalled due to an outstanding ICache miss.",
- "Counter": "0,1",
"EventCode": "0x86",
"EventName": "FETCH_STALL.ICACHE_FILL_PENDING_CYCLES",
"PublicDescription": "Counts cycles that fetch is stalled due to an outstanding ICache miss. That is, the decoder queue is able to accept bytes, but the fetch unit is unable to provide bytes due to an ICache miss. Note: this event is not the same as the total number of cycles spent retrieving instruction cache lines from the memory hierarchy.\r\nCounts cycles that fetch is stalled due to any reason. That is, the decoder queue is able to accept bytes, but the fetch unit is unable to provide bytes. This will include cycles due to an ITLB miss, ICache miss and other events.",
},
{
"BriefDescription": "Counts the number of request from the L2 that were not accepted into the XQ",
- "Counter": "0,1",
"EventCode": "0x30",
"EventName": "L2_REJECT_XQ.ALL",
"PublicDescription": "This event counts the number of demand and prefetch transactions that the L2 XQ rejects due to a full or near full condition which likely indicates back pressure from the IDI link. The XQ may reject transactions from the L2Q (non-cacheable requests), BBS (L2 misses) and WOB (L2 write-back victims).",
},
{
"BriefDescription": "L2 cache request misses",
- "Counter": "0,1",
"EventCode": "0x2E",
"EventName": "LONGEST_LAT_CACHE.MISS",
"PublicDescription": "This event counts the total number of L2 cache references and the number of L2 cache misses respectively.",
},
{
"BriefDescription": "L2 cache requests from this core",
- "Counter": "0,1",
"EventCode": "0x2E",
"EventName": "LONGEST_LAT_CACHE.REFERENCE",
"PublicDescription": "This event counts requests originating from the core that references a cache line in the L2 cache.",
},
{
"BriefDescription": "All Loads",
- "Counter": "0,1",
"EventCode": "0x04",
"EventName": "MEM_UOPS_RETIRED.ALL_LOADS",
"PublicDescription": "This event counts the number of load ops retired.",
},
{
"BriefDescription": "All Stores",
- "Counter": "0,1",
"EventCode": "0x04",
"EventName": "MEM_UOPS_RETIRED.ALL_STORES",
"PublicDescription": "This event counts the number of store ops retired.",
},
{
"BriefDescription": "Cross core or cross module hitm",
- "Counter": "0,1",
"EventCode": "0x04",
"EventName": "MEM_UOPS_RETIRED.HITM",
"PEBS": "1",
},
{
"BriefDescription": "Loads missed L1",
- "Counter": "0,1",
"EventCode": "0x04",
"EventName": "MEM_UOPS_RETIRED.L1_MISS_LOADS",
"PublicDescription": "This event counts the number of load ops retired that miss in L1 Data cache. Note that prefetch misses will not be counted.",
},
{
"BriefDescription": "Loads hit L2",
- "Counter": "0,1",
"EventCode": "0x04",
"EventName": "MEM_UOPS_RETIRED.L2_HIT_LOADS",
"PEBS": "1",
},
{
"BriefDescription": "Loads missed L2",
- "Counter": "0,1",
"EventCode": "0x04",
"EventName": "MEM_UOPS_RETIRED.L2_MISS_LOADS",
"PEBS": "1",
},
{
"BriefDescription": "Loads missed UTLB",
- "Counter": "0,1",
"EventCode": "0x04",
"EventName": "MEM_UOPS_RETIRED.UTLB_MISS",
"PublicDescription": "This event counts the number of load ops retired that had UTLB miss.",
},
{
"BriefDescription": "Offcore response can be programmed only with a specific pair of event select and counter MSR, and with specific event codes and predefine mask bit value in a dedicated MSR to specify attributes of the offcore transaction",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE",
"PublicDescription": "Offcore response can be programmed only with a specific pair of event select and counter MSR, and with specific event codes and predefine mask bit value in a dedicated MSR to specify attributes of the offcore transaction.",
},
{
"BriefDescription": "Counts any code reads (demand & prefetch) that have any response type.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_CODE_RD.ANY_RESPONSE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0000010044",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any code reads (demand & prefetch) that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_CODE_RD.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680000044",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any code reads (demand & prefetch) that hit in the other module where modified copies were found in other core's L1 cache.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_CODE_RD.L2_MISS.HITM_OTHER_CORE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1000000044",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any code reads (demand & prefetch) that miss L2 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_CODE_RD.L2_MISS.HIT_OTHER_CORE_NO_FWD",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0400000044",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any code reads (demand & prefetch) that miss L2 with a snoop miss response.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_CODE_RD.L2_MISS.SNOOP_MISS",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0200000044",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any data read (demand & prefetch) that have any response type.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_DATA_RD.ANY_RESPONSE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0000013091",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any data read (demand & prefetch) that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_DATA_RD.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680003091",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any data read (demand & prefetch) that hit in the other module where modified copies were found in other core's L1 cache.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_DATA_RD.L2_MISS.HITM_OTHER_CORE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1000003091",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any data read (demand & prefetch) that miss L2 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_DATA_RD.L2_MISS.HIT_OTHER_CORE_NO_FWD",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0400003091",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any data read (demand & prefetch) that miss L2 with a snoop miss response.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_DATA_RD.L2_MISS.SNOOP_MISS",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0200003091",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any request that have any response type.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_REQUEST.ANY_RESPONSE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0000018008",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any request that hit in the other module where modified copies were found in other core's L1 cache.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_REQUEST.L2_MISS.HITM_OTHER_CORE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1000008008",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any request that miss L2 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_REQUEST.L2_MISS.HIT_OTHER_CORE_NO_FWD",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0400008008",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any request that miss L2 with a snoop miss response.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_REQUEST.L2_MISS.SNOOP_MISS",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0200008008",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any rfo reads (demand & prefetch) that have any response type.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_RFO.ANY_RESPONSE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0000010022",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any rfo reads (demand & prefetch) that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_RFO.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680000022",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any rfo reads (demand & prefetch) that hit in the other module where modified copies were found in other core's L1 cache.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_RFO.L2_MISS.HITM_OTHER_CORE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1000000022",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any rfo reads (demand & prefetch) that miss L2 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_RFO.L2_MISS.HIT_OTHER_CORE_NO_FWD",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0400000022",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts any rfo reads (demand & prefetch) that miss L2 with a snoop miss response.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.ANY_RFO.L2_MISS.SNOOP_MISS",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0200000022",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts writeback (modified to exclusive) that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.COREWB.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680000008",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts writeback (modified to exclusive) that miss L2 with no details on snoop-related information.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.COREWB.L2_MISS.NO_SNOOP_NEEDED",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0080000008",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch instruction cacheline that have any response type.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_CODE_RD.ANY_RESPONSE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0000010004",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch instruction cacheline that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_CODE_RD.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680000004",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch instruction cacheline that miss L2 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_CODE_RD.L2_MISS.HIT_OTHER_CORE_NO_FWD",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0400000004",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch instruction cacheline that miss L2 with a snoop miss response.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_CODE_RD.L2_MISS.SNOOP_MISS",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0200000004",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch instruction cacheline that are are outstanding, per cycle, from the time of the L2 miss to when any response is received.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_CODE_RD.OUTSTANDING",
"MSRIndex": "0x1a6",
"MSRValue": "0x4000000004",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch data read that have any response type.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_DATA_RD.ANY_RESPONSE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0000010001",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch data read that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_DATA_RD.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680000001",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch data read that hit in the other module where modified copies were found in other core's L1 cache.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_DATA_RD.L2_MISS.HITM_OTHER_CORE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1000000001",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch data read that miss L2 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_DATA_RD.L2_MISS.HIT_OTHER_CORE_NO_FWD",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0400000001",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch data read that miss L2 with a snoop miss response.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_DATA_RD.L2_MISS.SNOOP_MISS",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0200000001",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch data read that are are outstanding, per cycle, from the time of the L2 miss to when any response is received.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_DATA_RD.OUTSTANDING",
"MSRIndex": "0x1a6",
"MSRValue": "0x4000000001",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch RFOs that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_RFO.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680000002",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch RFOs that hit in the other module where modified copies were found in other core's L1 cache.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_RFO.L2_MISS.HITM_OTHER_CORE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1000000002",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch RFOs that miss L2 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_RFO.L2_MISS.HIT_OTHER_CORE_NO_FWD",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0400000002",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch RFOs that miss L2 with a snoop miss response.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_RFO.L2_MISS.SNOOP_MISS",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0200000002",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand and DCU prefetch RFOs that are are outstanding, per cycle, from the time of the L2 miss to when any response is received.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.DEMAND_RFO.OUTSTANDING",
"MSRIndex": "0x1a6",
"MSRValue": "0x4000000002",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts demand reads of partial cache lines (including UC and WC) that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PARTIAL_READS.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680000080",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Countsof demand RFO requests to write to partial cache lines that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PARTIAL_WRITES.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680000100",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts DCU hardware prefetcher data read that have any response type.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L1_DATA_RD.ANY_RESPONSE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0000012000",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts DCU hardware prefetcher data read that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L1_DATA_RD.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680002000",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts DCU hardware prefetcher data read that hit in the other module where modified copies were found in other core's L1 cache.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L1_DATA_RD.L2_MISS.HITM_OTHER_CORE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1000002000",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts DCU hardware prefetcher data read that miss L2 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L1_DATA_RD.L2_MISS.HIT_OTHER_CORE_NO_FWD",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0400002000",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts DCU hardware prefetcher data read that miss L2 with a snoop miss response.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L1_DATA_RD.L2_MISS.SNOOP_MISS",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0200002000",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts code reads generated by L2 prefetchers that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L2_CODE_RD.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680000040",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts code reads generated by L2 prefetchers that miss L2 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L2_CODE_RD.L2_MISS.HIT_OTHER_CORE_NO_FWD",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0400000040",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts code reads generated by L2 prefetchers that miss L2 with a snoop miss response.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L2_CODE_RD.L2_MISS.SNOOP_MISS",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0200000040",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts data cacheline reads generated by L2 prefetchers that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L2_DATA_RD.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680000010",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts data cacheline reads generated by L2 prefetchers that hit in the other module where modified copies were found in other core's L1 cache.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L2_DATA_RD.L2_MISS.HITM_OTHER_CORE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1000000010",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts data cacheline reads generated by L2 prefetchers that miss L2 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L2_DATA_RD.L2_MISS.HIT_OTHER_CORE_NO_FWD",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0400000010",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts data cacheline reads generated by L2 prefetchers that miss L2 with a snoop miss response.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L2_DATA_RD.L2_MISS.SNOOP_MISS",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0200000010",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts RFO requests generated by L2 prefetchers that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L2_RFO.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680000020",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts RFO requests generated by L2 prefetchers that hit in the other module where modified copies were found in other core's L1 cache.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L2_RFO.L2_MISS.HITM_OTHER_CORE",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1000000020",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts RFO requests generated by L2 prefetchers that miss L2 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L2_RFO.L2_MISS.HIT_OTHER_CORE_NO_FWD",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0400000020",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts RFO requests generated by L2 prefetchers that miss L2 with a snoop miss response.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.PF_L2_RFO.L2_MISS.SNOOP_MISS",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x0200000020",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Counts streaming store that miss L2.",
- "Counter": "0,1",
"EventCode": "0xB7",
"EventName": "OFFCORE_RESPONSE.STREAMING_STORES.L2_MISS.ANY",
"MSRIndex": "0x1a6,0x1a7",
"MSRValue": "0x1680004800",
- "Offcore": "1",
"SampleAfterValue": "100007",
"UMask": "0x1"
},
{
"BriefDescription": "Any reissued load uops",
- "Counter": "0,1",
"EventCode": "0x03",
"EventName": "REHABQ.ANY_LD",
"PublicDescription": "This event counts the number of load uops reissued from Rehabq.",
},
{
"BriefDescription": "Any reissued store uops",
- "Counter": "0,1",
"EventCode": "0x03",
"EventName": "REHABQ.ANY_ST",
"PublicDescription": "This event counts the number of store uops reissued from Rehabq.",
},
{
"BriefDescription": "Loads blocked due to store data not ready",
- "Counter": "0,1",
"EventCode": "0x03",
"EventName": "REHABQ.LD_BLOCK_STD_NOTREADY",
"PublicDescription": "This event counts the cases where a forward was technically possible, but did not occur because the store data was not available at the right time.",
},
{
"BriefDescription": "Loads blocked due to store forward restriction",
- "Counter": "0,1",
"EventCode": "0x03",
"EventName": "REHABQ.LD_BLOCK_ST_FORWARD",
"PEBS": "1",
},
{
"BriefDescription": "Load uops that split cache line boundary",
- "Counter": "0,1",
"EventCode": "0x03",
"EventName": "REHABQ.LD_SPLITS",
"PEBS": "1",
},
{
"BriefDescription": "Uops with lock semantics",
- "Counter": "0,1",
"EventCode": "0x03",
"EventName": "REHABQ.LOCK",
"PublicDescription": "This event counts the number of retired memory operations with lock semantics. These are either implicit locked instructions such as the XCHG instruction or instructions with an explicit LOCK prefix (0xF0).",
},
{
"BriefDescription": "Store address buffer full",
- "Counter": "0,1",
"EventCode": "0x03",
"EventName": "REHABQ.STA_FULL",
"PublicDescription": "This event counts the number of retired stores that are delayed because there is not a store address buffer available.",
},
{
"BriefDescription": "Store uops that split cache line boundary",
- "Counter": "0,1",
"EventCode": "0x03",
"EventName": "REHABQ.ST_SPLITS",
"PublicDescription": "This event counts the number of retire stores that experienced cache line boundary splits.",
[
{
"BriefDescription": "Counts the number of branch instructions retired...",
- "Counter": "0,1",
"EventCode": "0xC4",
"EventName": "BR_INST_RETIRED.ALL_BRANCHES",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of taken branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC4",
"EventName": "BR_INST_RETIRED.ALL_TAKEN_BRANCHES",
"PEBS": "2",
- "PEBScounters": "0,1",
"PublicDescription": "ALL_TAKEN_BRANCHES counts the number of all taken branch instructions retired. Branch prediction predicts the branch target and enables the processor to begin executing instructions long before the branch true execution path is known. All branches utilize the branch prediction unit (BPU) for prediction. This unit predicts the target address not only based on the EIP of the branch but also based on the execution path through which execution reached this EIP. The BPU can efficiently predict the following branch types: conditional branches, direct calls and jumps, indirect calls and jumps, returns.",
"SampleAfterValue": "200003",
"UMask": "0x80"
},
{
"BriefDescription": "Counts the number of near CALL branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC4",
"EventName": "BR_INST_RETIRED.CALL",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of far branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC4",
"EventName": "BR_INST_RETIRED.FAR_BRANCH",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of near indirect CALL branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC4",
"EventName": "BR_INST_RETIRED.IND_CALL",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of JCC branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC4",
"EventName": "BR_INST_RETIRED.JCC",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of near indirect JMP and near indirect CALL branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC4",
"EventName": "BR_INST_RETIRED.NON_RETURN_IND",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of near relative CALL branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC4",
"EventName": "BR_INST_RETIRED.REL_CALL",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of near RET branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC4",
"EventName": "BR_INST_RETIRED.RETURN",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of taken JCC branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC4",
"EventName": "BR_INST_RETIRED.TAKEN_JCC",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of mispredicted branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC5",
"EventName": "BR_MISP_RETIRED.ALL_BRANCHES",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of mispredicted near indirect CALL branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC5",
"EventName": "BR_MISP_RETIRED.IND_CALL",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of mispredicted JCC branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC5",
"EventName": "BR_MISP_RETIRED.JCC",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of mispredicted near indirect JMP and near indirect CALL branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC5",
"EventName": "BR_MISP_RETIRED.NON_RETURN_IND",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of mispredicted near RET branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC5",
"EventName": "BR_MISP_RETIRED.RETURN",
"PEBS": "1",
},
{
"BriefDescription": "Counts the number of mispredicted taken JCC branch instructions retired",
- "Counter": "0,1",
"EventCode": "0xC5",
"EventName": "BR_MISP_RETIRED.TAKEN_JCC",
"PEBS": "1",
},
{
"BriefDescription": "Fixed Counter: Counts the number of unhalted core clock cycles",
- "Counter": "Fixed counter 2",
"EventName": "CPU_CLK_UNHALTED.CORE",
"PublicDescription": "Counts the number of core cycles while the core is not in a halt state. The core enters the halt state when it is running the HLT instruction. This event is a component in many key event ratios. The core frequency may change from time to time. For this reason this event may have a changing ratio with regards to time. In systems with a constant core frequency, this event can give you a measurement of the elapsed time while the core was not in halt state by dividing the event count by the core frequency. This event is architecturally defined and is a designated fixed counter. CPU_CLK_UNHALTED.CORE and CPU_CLK_UNHALTED.CORE_P use the core frequency which may change from time to time. CPU_CLK_UNHALTE.REF_TSC and CPU_CLK_UNHALTED.REF are not affected by core frequency changes but counts as if the core is running at the maximum frequency all the time. The fixed events are CPU_CLK_UNHALTED.CORE and CPU_CLK_UNHALTED.REF_TSC and the programmable events are CPU_CLK_UNHALTED.CORE_P and CPU_CLK_UNHALTED.REF.",
"SampleAfterValue": "2000003",
},
{
"BriefDescription": "Core cycles when core is not halted",
- "Counter": "0,1",
"EventCode": "0x3C",
"EventName": "CPU_CLK_UNHALTED.CORE_P",
"PublicDescription": "This event counts the number of core cycles while the core is not in a halt state. The core enters the halt state when it is running the HLT instruction. In mobile systems the core frequency may change from time to time. For this reason this event may have a changing ratio with regards to time.",
},
{
"BriefDescription": "Reference cycles when core is not halted",
- "Counter": "0,1",
"EventCode": "0x3C",
"EventName": "CPU_CLK_UNHALTED.REF",
"PublicDescription": "This event counts the number of reference cycles that the core is not in a halt state. The core enters the halt state when it is running the HLT instruction. In mobile systems the core frequency may change from time. This event is not affected by core frequency changes but counts as if the core is running at the maximum frequency all the time.",
},
{
"BriefDescription": "Fixed Counter: Counts the number of unhalted reference clock cycles",
- "Counter": "Fixed counter 3",
"EventName": "CPU_CLK_UNHALTED.REF_TSC",
"PublicDescription": "Counts the number of reference cycles while the core is not in a halt state. The core enters the halt state when it is running the HLT instruction. This event is a component in many key event ratios. The core frequency may change from time. This event is not affected by core frequency changes but counts as if the core is running at the maximum frequency all the time. Divide this event count by core frequency to determine the elapsed time while the core was not in halt state. Divide this event count by core frequency to determine the elapsed time while the core was not in halt state. This event is architecturally defined and is a designated fixed counter. CPU_CLK_UNHALTED.CORE and CPU_CLK_UNHALTED.CORE_P use the core frequency which may change from time to time. CPU_CLK_UNHALTE.REF_TSC and CPU_CLK_UNHALTED.REF are not affected by core frequency changes but counts as if the core is running at the maximum frequency all the time. The fixed events are CPU_CLK_UNHALTED.CORE and CPU_CLK_UNHALTED.REF_TSC and the programmable events are CPU_CLK_UNHALTED.CORE_P and CPU_CLK_UNHALTED.REF.",
"SampleAfterValue": "2000003",
},
{
"BriefDescription": "Cycles the divider is busy. Does not imply a stall waiting for the divider.",
- "Counter": "0,1",
"EventCode": "0xCD",
"EventName": "CYCLES_DIV_BUSY.ALL",
"PublicDescription": "Cycles the divider is busy.This event counts the cycles when the divide unit is unable to accept a new divide UOP because it is busy processing a previously dispatched UOP. The cycles will be counted irrespective of whether or not another divide UOP is waiting to enter the divide unit (from the RS). This event might count cycles while a divide is in progress even if the RS is empty. The divide instruction is one of the longest latency instructions in the machine. Hence, it has a special event associated with it to help determine if divides are delaying the retirement of instructions.",
},
{
"BriefDescription": "Fixed Counter: Counts the number of instructions retired",
- "Counter": "Fixed counter 1",
"EventName": "INST_RETIRED.ANY",
"PublicDescription": "This event counts the number of instructions that retire. For instructions that consist of multiple micro-ops, this event counts exactly once, as the last micro-op of the instruction retires. The event continues counting while instructions retire, including during interrupt service routines caused by hardware interrupts, faults or traps. Background: Modern microprocessors employ extensive pipelining and speculative techniques. Since sometimes an instruction is started but never completed, the notion of \"retirement\" is introduced. A retired instruction is one that commits its states. Or stated differently, an instruction might be abandoned at some point. No instruction is truly finished until it retires. This counter measures the number of completed instructions. The fixed event is INST_RETIRED.ANY and the programmable event is INST_RETIRED.ANY_P.",
"SampleAfterValue": "2000003",
},
{
"BriefDescription": "Instructions retired",
- "Counter": "0,1",
"EventCode": "0xC0",
"EventName": "INST_RETIRED.ANY_P",
"PublicDescription": "This event counts the number of instructions that retire execution. For instructions that consist of multiple micro-ops, this event counts the retirement of the last micro-op of the instruction. The counter continues counting during hardware interrupts, traps, and inside interrupt handlers.",
},
{
"BriefDescription": "Counts all machine clears",
- "Counter": "0,1",
"EventCode": "0xC3",
"EventName": "MACHINE_CLEARS.ALL",
"PublicDescription": "Machine clears happen when something happens in the machine that causes the hardware to need to take special care to get the right answer. When such a condition is signaled on an instruction, the front end of the machine is notified that it must restart, so no more instructions will be decoded from the current path. All instructions \"older\" than this one will be allowed to finish. This instruction and all \"younger\" instructions must be cleared, since they must not be allowed to complete. Essentially, the hardware waits until the problematic instruction is the oldest instruction in the machine. This means all older instructions are retired, and all pending stores (from older instructions) are completed. Then the new path of instructions from the front end are allowed to start into the machine. There are many conditions that might cause a machine clear (including the receipt of an interrupt, or a trap or a fault). All those conditions (including but not limited to MACHINE_CLEARS.MEMORY_ORDERING, MACHINE_CLEARS.SMC, and MACHINE_CLEARS.FP_ASSIST) are captured in the ANY event. In addition, some conditions can be specifically counted (i.e. SMC, MEMORY_ORDERING, FP_ASSIST). However, the sum of SMC, MEMORY_ORDERING, and FP_ASSIST machine clears will not necessarily equal the number of ANY.",
},
{
"BriefDescription": "Self-Modifying Code detected",
- "Counter": "0,1",
"EventCode": "0xC3",
"EventName": "MACHINE_CLEARS.SMC",
"PublicDescription": "This event counts the number of times that a program writes to a code section. Self-modifying code causes a severe penalty in all Intel? architecture processors.",
},
{
"BriefDescription": "Counts the number of cycles when no uops are allocated for any reason.",
- "Counter": "0,1",
"EventCode": "0xCA",
"EventName": "NO_ALLOC_CYCLES.ALL",
"PublicDescription": "The NO_ALLOC_CYCLES.ALL event counts the number of cycles when the front-end does not provide any instructions to be allocated for any reason. This event indicates the cycles where an allocation stalls occurs, and no UOPS are allocated in that cycle.",
},
{
"BriefDescription": "Counts the number of cycles when no uops are allocated and the alloc pipe is stalled waiting for a mispredicted jump to retire. After the misprediction is detected, the front end will start immediately but the allocate pipe stalls until the mispredicted",
- "Counter": "0,1",
"EventCode": "0xCA",
"EventName": "NO_ALLOC_CYCLES.MISPREDICTS",
"PublicDescription": "Counts the number of cycles when no uops are allocated and the alloc pipe is stalled waiting for a mispredicted jump to retire. After the misprediction is detected, the front end will start immediately but the allocate pipe stalls until the mispredicted.",
},
{
"BriefDescription": "Counts the number of cycles when no uops are allocated, the IQ is empty, and no other condition is blocking allocation.",
- "Counter": "0,1",
"EventCode": "0xCA",
"EventName": "NO_ALLOC_CYCLES.NOT_DELIVERED",
"PublicDescription": "The NO_ALLOC_CYCLES.NOT_DELIVERED event is used to measure front-end inefficiencies, i.e. when front-end of the machine is not delivering micro-ops to the back-end and the back-end is not stalled. This event can be used to identify if the machine is truly front-end bound. When this event occurs, it is an indication that the front-end of the machine is operating at less than its theoretical peak performance. Background: We can think of the processor pipeline as being divided into 2 broader parts: Front-end and Back-end. Front-end is responsible for fetching the instruction, decoding into micro-ops (uops) in machine understandable format and putting them into a micro-op queue to be consumed by back end. The back-end then takes these micro-ops, allocates the required resources. When all resources are ready, micro-ops are executed. If the back-end is not ready to accept micro-ops from the front-end, then we do not want to count these as front-end bottlenecks. However, whenever we have bottlenecks in the back-end, we will have allocation unit stalls and eventually forcing the front-end to wait until the back-end is ready to receive more UOPS. This event counts the cycles only when back-end is requesting more uops and front-end is not able to provide them. Some examples of conditions that cause front-end efficiencies are: Icache misses, ITLB misses, and decoder restrictions that limit the the front-end bandwidth.",
},
{
"BriefDescription": "Counts the number of cycles when no uops are allocated and a RATstall is asserted.",
- "Counter": "0,1",
"EventCode": "0xCA",
"EventName": "NO_ALLOC_CYCLES.RAT_STALL",
"SampleAfterValue": "200003",
},
{
"BriefDescription": "Counts the number of cycles when no uops are allocated and the ROB is full (less than 2 entries available)",
- "Counter": "0,1",
"EventCode": "0xCA",
"EventName": "NO_ALLOC_CYCLES.ROB_FULL",
"PublicDescription": "Counts the number of cycles when no uops are allocated and the ROB is full (less than 2 entries available).",
},
{
"BriefDescription": "Counts the number of cycles the Alloc pipeline is stalled when any one of the RSs (IEC, FPC and MEC) is full. This event is a superset of all the individual RS stall event counts.",
- "Counter": "0,1",
"EventCode": "0xCB",
"EventName": "RS_FULL_STALL.ALL",
"SampleAfterValue": "200003",
},
{
"BriefDescription": "Counts the number of cycles and allocation pipeline is stalled and is waiting for a free MEC reservation station entry. The cycles should be appropriately counted in case of the cracked ops e.g. In case of a cracked load-op, the load portion is sent to M",
- "Counter": "0,1",
"EventCode": "0xCB",
"EventName": "RS_FULL_STALL.MEC",
"PublicDescription": "Counts the number of cycles and allocation pipeline is stalled and is waiting for a free MEC reservation station entry. The cycles should be appropriately counted in case of the cracked ops e.g. In case of a cracked load-op, the load portion is sent to M.",
},
{
"BriefDescription": "Micro-ops retired",
- "Counter": "0,1",
"EventCode": "0xC2",
"EventName": "UOPS_RETIRED.ALL",
"PublicDescription": "This event counts the number of micro-ops retired. The processor decodes complex macro instructions into a sequence of simpler micro-ops. Most instructions are composed of one or two micro-ops. Some instructions are decoded into longer sequences such as repeat instructions, floating point transcendental instructions, and assists. In some cases micro-op sequences are fused or whole instructions are fused into one micro-op. See other UOPS_RETIRED events for differentiating retired fused and non-fused micro-ops.",
},
{
"BriefDescription": "MSROM micro-ops retired",
- "Counter": "0,1",
"EventCode": "0xC2",
"EventName": "UOPS_RETIRED.MS",
"PublicDescription": "This event counts the number of micro-ops retired that were supplied from MSROM.",
projects / platform / kernel / linux-starfive.git / commitdiff