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Date: Tue, 17 May 2022 02:03:24 +0000 From: Ali Saidi <alisaidi@...zon.com> To: <linux-kernel@...r.kernel.org>, <linux-perf-users@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <german.gomez@....com>, <leo.yan@...aro.org>, <acme@...nel.org> CC: <alisaidi@...zon.com>, <benh@...nel.crashing.org>, <Nick.Forrington@....com>, <alexander.shishkin@...ux.intel.com>, <andrew.kilroy@....com>, <james.clark@....com>, <john.garry@...wei.com>, <jolsa@...nel.org>, <kjain@...ux.ibm.com>, <lihuafei1@...wei.com>, <mark.rutland@....com>, <mathieu.poirier@...aro.org>, <mingo@...hat.com>, <namhyung@...nel.org>, <peterz@...radead.org>, <will@...nel.org> Subject: [PATCH v9 3/5] perf mem: Print snoop peer flag From: Leo Yan <leo.yan@...aro.org> Since PERF_MEM_SNOOPX_PEER flag is a new snoop type, print this flag if it is set. Before: memstress 3603 [020] 122.463754: 1 l1d-miss: 8688000842 |OP LOAD|LVL L3 or L3 hit|SNP N/A|TLB Walker hit|LCK No|BLK N/A aaaac17c3e88 [unknown] (/home/ubuntu/memstress) memstress 3603 [020] 122.463754: 1 l1d-access: 8688000842 |OP LOAD|LVL L3 or L3 hit|SNP N/A|TLB Walker hit|LCK No|BLK N/A aaaac17c3e88 [unknown] (/home/ubuntu/memstress) memstress 3603 [020] 122.463754: 1 llc-miss: 8688000842 |OP LOAD|LVL L3 or L3 hit|SNP N/A|TLB Walker hit|LCK No|BLK N/A aaaac17c3e88 [unknown] (/home/ubuntu/memstress) memstress 3603 [020] 122.463754: 1 llc-access: 8688000842 |OP LOAD|LVL L3 or L3 hit|SNP N/A|TLB Walker hit|LCK No|BLK N/A aaaac17c3e88 [unknown] (/home/ubuntu/memstress) memstress 3603 [020] 122.463754: 1 tlb-access: 8688000842 |OP LOAD|LVL L3 or L3 hit|SNP N/A|TLB Walker hit|LCK No|BLK N/A aaaac17c3e88 [unknown] (/home/ubuntu/memstress) memstress 3603 [020] 122.463754: 1 memory: 8688000842 |OP LOAD|LVL L3 or L3 hit|SNP N/A|TLB Walker hit|LCK No|BLK N/A aaaac17c3e88 [unknown] (/home/ubuntu/memstress) After: memstress 3603 [020] 122.463754: 1 l1d-miss: 8688000842 |OP LOAD|LVL L3 or L3 hit|SNP Peer|TLB Walker hit|LCK No|BLK N/A aaaac17c3e88 [unknown] (/home/ubuntu/memstress) memstress 3603 [020] 122.463754: 1 l1d-access: 8688000842 |OP LOAD|LVL L3 or L3 hit|SNP Peer|TLB Walker hit|LCK No|BLK N/A aaaac17c3e88 [unknown] (/home/ubuntu/memstress) memstress 3603 [020] 122.463754: 1 llc-miss: 8688000842 |OP LOAD|LVL L3 or L3 hit|SNP Peer|TLB Walker hit|LCK No|BLK N/A aaaac17c3e88 [unknown] (/home/ubuntu/memstress) memstress 3603 [020] 122.463754: 1 llc-access: 8688000842 |OP LOAD|LVL L3 or L3 hit|SNP Peer|TLB Walker hit|LCK No|BLK N/A aaaac17c3e88 [unknown] (/home/ubuntu/memstress) memstress 3603 [020] 122.463754: 1 tlb-access: 8688000842 |OP LOAD|LVL L3 or L3 hit|SNP Peer|TLB Walker hit|LCK No|BLK N/A aaaac17c3e88 [unknown] (/home/ubuntu/memstress) memstress 3603 [020] 122.463754: 1 memory: 8688000842 |OP LOAD|LVL L3 or L3 hit|SNP Peer|TLB Walker hit|LCK No|BLK N/A aaaac17c3e88 [unknown] (/home/ubuntu/memstress) Signed-off-by: Leo Yan <leo.yan@...aro.org> Reviewed-by: Ali Saidi <alisaidi@...zon.com> Tested-by: Ali Saidi <alisaidi@...zon.com> Reviewed-by: Kajol Jain<kjain@...ux.ibm.com> --- tools/perf/util/mem-events.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c index efaf263464b9..db5225caaabe 100644 --- a/tools/perf/util/mem-events.c +++ b/tools/perf/util/mem-events.c @@ -410,6 +410,11 @@ static const char * const snoop_access[] = { "HitM", }; +static const char * const snoopx_access[] = { + "Fwd", + "Peer", +}; + int perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info) { size_t i, l = 0; @@ -430,13 +435,20 @@ int perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info) } l += scnprintf(out + l, sz - l, snoop_access[i]); } - if (mem_info && - (mem_info->data_src.mem_snoopx & PERF_MEM_SNOOPX_FWD)) { + + m = 0; + if (mem_info) + m = mem_info->data_src.mem_snoopx; + + for (i = 0; m && i < ARRAY_SIZE(snoopx_access); i++, m >>= 1) { + if (!(m & 0x1)) + continue; + if (l) { strcat(out, " or "); l += 4; } - l += scnprintf(out + l, sz - l, "Fwd"); + l += scnprintf(out + l, sz - l, snoopx_access[i]); } if (*out == '\0') -- 2.32.0
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