From: Leo Yan <leo.yan@linaro.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>,
James Clark <james.clark@arm.com>,
Mike Leach <mike.leach@linaro.org>,
Kajol Jain <kjain@linux.ibm.com>, Ali Saidi <alisaidi@amazon.com>,
Adrian Hunter <adrian.hunter@intel.com>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Ian Rogers <irogers@google.com>, Like Xu <likexu@tencent.com>,
German Gomez <german.gomez@arm.com>,
Timothy Hayes <timothy.hayes@arm.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: Leo Yan <leo.yan@linaro.org>
Subject: [PATCH v6 02/15] perf mem: Print snoop peer flag
Date: Thu, 11 Aug 2022 14:24:38 +0800 [thread overview]
Message-ID: <20220811062451.435810-3-leo.yan@linaro.org> (raw)
In-Reply-To: <20220811062451.435810-1-leo.yan@linaro.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@linaro.org>
Reviewed-by: Ali Saidi <alisaidi@amazon.com>
Tested-by: Ali Saidi <alisaidi@amazon.com>
Reviewed-by: Kajol Jain<kjain@linux.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 c3c21a9c350b..5dca1882c284 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')
--
2.34.1
next prev parent reply other threads:[~2022-08-11 6:25 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-11 6:24 [PATCH v6 00/15] perf c2c: Support data source and display for Arm64 Leo Yan
2022-08-11 6:24 ` [PATCH v6 01/15] perf tools: sync addition of PERF_MEM_SNOOPX_PEER Leo Yan
2022-08-11 21:55 ` Arnaldo Carvalho de Melo
2022-08-11 6:24 ` Leo Yan [this message]
2022-08-11 6:24 ` [PATCH v6 03/15] perf arm-spe: Use SPE data source for neoverse cores Leo Yan
2022-08-11 22:01 ` Arnaldo Carvalho de Melo
2022-08-11 6:24 ` [PATCH v6 04/15] perf mem: Add statistics for peer snooping Leo Yan
2022-08-11 6:24 ` [PATCH v6 05/15] perf c2c: Output " Leo Yan
2022-08-11 6:24 ` [PATCH v6 06/15] perf c2c: Add dimensions for peer load operations Leo Yan
2022-08-11 6:24 ` [PATCH v6 07/15] perf c2c: Add dimensions of peer metrics for cache line view Leo Yan
2022-08-11 6:24 ` [PATCH v6 08/15] perf c2c: Add mean dimensions for peer operations Leo Yan
2022-08-11 6:24 ` [PATCH v6 09/15] perf c2c: Use explicit names for display macros Leo Yan
2022-08-11 6:24 ` [PATCH v6 10/15] perf c2c: Rename dimension from 'percent_hitm' to 'percent_costly_snoop' Leo Yan
2022-08-11 6:24 ` [PATCH v6 11/15] perf c2c: Refactor node header Leo Yan
2022-08-11 6:24 ` [PATCH v6 12/15] perf c2c: Refactor display string Leo Yan
2022-08-11 6:24 ` [PATCH v6 13/15] perf c2c: Sort on peer snooping for load operations Leo Yan
2022-08-11 6:24 ` [PATCH v6 14/15] perf c2c: Use 'peer' as default display for Arm64 Leo Yan
2022-08-11 6:24 ` [PATCH v6 15/15] perf c2c: Update documentation for new display option 'peer' Leo Yan
2022-08-11 22:25 ` [PATCH v6 00/15] perf c2c: Support data source and display for Arm64 Arnaldo Carvalho de Melo
2022-08-12 1:26 ` Leo Yan
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