From: James Clark <james.clark@arm.com>
To: Tanmay Jagdale <tanmay@marvell.com>,
"linux-perf-users@vger.kernel.org"
<linux-perf-users@vger.kernel.org>,
"leo.yan@linaro.org" <leo.yan@linaro.org>,
"mike.leach@linaro.org" <mike.leach@linaro.org>
Cc: Sunil Kovvuri Goutham <sgoutham@marvell.com>,
George Cherian <gcherian@marvell.com>,
Linu Cherian <lcherian@marvell.com>,
Bharat Bhushan <bbhushan2@marvell.com>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
John Garry <john.g.garry@oracle.com>,
Will Deacon <will@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
"coresight@lists.linaro.org" <coresight@lists.linaro.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 0/7] perf cs_etm: Basic support for virtual/kernel timestamps
Date: Wed, 11 Jan 2023 11:35:04 +0000 [thread overview]
Message-ID: <4e6a0766-52d1-effa-9986-af6b3ca29f1a@arm.com> (raw)
In-Reply-To: <PH0PR18MB5017223066D8744D12C1F1BAD6FF9@PH0PR18MB5017.namprd18.prod.outlook.com>
On 10/01/2023 16:42, Tanmay Jagdale wrote:
> Hi James,
>
[...]
>> base-commit: 09e6f9f98370be9a9f8978139e0eb1be87d1125f
> I have tested this patch set on our platform and able to see updated
> timestamp values in perf script's output.
>
> $ perf record -e cs_etm/cycacc,@tmc_etr0/k -C 9 taskset -c 9 sleep 2
> $ perf script --itrace=i1ns --ns -Fcomm,tid,pid,time,cpu,event,ip,sym,addr,symoff,flags,callindent
>
> At certain points noticed that hardware emits same timestamp packets
> but with updated cycle count (CC) values. A small snippet of the log:
>
> Idx:100; ID:12; I_ADDR_S_IS0 : Address, Short, IS0.; Addr=0xFFFF8000086A761C ~[0x761C]
> Idx:103; ID:12; I_TIMESTAMP : Timestamp.; Updated val = 0x2f373e37e02; CC=0x3d
> Idx:107; ID:12; I_ATOM_F2 : Atom format 2.; EN
> Idx:108; ID:12; I_TIMESTAMP : Timestamp.; Updated val = 0x2f373e37e02; CC=0x3f
> Idx:112; ID:12; I_ATOM_F1 : Atom format 1.; N
> Idx:113; ID:12; I_TIMESTAMP : Timestamp.; Updated val = 0x2f373e37e02; CC=0x45
> Idx:116; ID:12; I_ATOM_F1 : Atom format 1.; E
> Idx:117; ID:12; I_ADDR_S_IS0 : Address, Short, IS0.; Addr=0xFFFF8000086B52D4 ~[0x152D4]
Hi Tanmay,
Are you able to email or send a download link with the perf archive and
perf.data file of this recording please?
Thanks
James
prev parent reply other threads:[~2023-01-11 11:39 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-03 16:20 [PATCH v3 0/7] perf cs_etm: Basic support for virtual/kernel timestamps James Clark
2023-01-03 16:20 ` [PATCH v3 1/7] perf: Remove duplication around EVENT_SOURCE_DEVICE_PATH James Clark
2023-01-03 16:20 ` [PATCH v3 2/7] perf: Use perf_pmu__open_file() and perf_pmu__scan_file() James Clark
2023-01-11 7:09 ` Leo Yan
2023-01-11 15:14 ` James Clark
2023-01-03 16:20 ` [PATCH v3 3/7] perf: Remove remaining duplication of bus/event_source/devices/ James Clark
2023-01-03 16:20 ` [PATCH v3 4/7] perf pmu: Add function to check if a pmu file exists James Clark
2023-01-03 16:20 ` [PATCH v3 5/7] perf cs_etm: Keep separate symbols for ETMv4 and ETE parameters James Clark
2023-01-03 16:20 ` [PATCH v3 6/7] perf cs_etm: Record ts_source in AUXTRACE_INFO for ETMv4 and ETE James Clark
2023-01-03 16:20 ` [PATCH v3 7/7] perf cs_etm: Set the time field in the synthetic samples James Clark
2023-01-10 16:42 ` [PATCH v3 0/7] perf cs_etm: Basic support for virtual/kernel timestamps Tanmay Jagdale
2023-01-11 10:56 ` James Clark
2023-01-11 17:47 ` James Clark
2023-01-12 15:33 ` Tanmay Jagdale
2023-01-13 11:12 ` James Clark
2023-01-19 15:53 ` James Clark
2023-01-20 17:30 ` Tanmay Jagdale
2023-01-20 17:47 ` Arnaldo Carvalho de Melo
2023-01-21 5:13 ` Tanmay Jagdale
2023-01-11 11:35 ` James Clark [this message]
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