Messages in this thread | | | Date | Thu, 3 Aug 2023 23:41:22 -0400 | From | Steven Rostedt <> | Subject | Re: [RFC PATCH v6 1/5] perf sched: sync state char array with the kernel |
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On Fri, 4 Aug 2023 11:19:06 +0800 Ze Gao <zegao2021@gmail.com> wrote:
> I realize this is not perfect as well after second thoughts, since this does not > take offline use of perf into consideration. People might run perf on different > machines than where the perf.data gets recorded, in which way what we get > from /sys/kernel/debug/tracing/events/sched/sched_switch/format is likely > different from the perf.data.
If perf data files does what trace.dat files do, it should save the file formats in the data files. It should not be reading the kernel when reading the data file.
With trace-cmd, you can do: trace-cmd dump --events
And it will show you all the formats of the events that it saved in the file.
-- Steve
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