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perf script: Add 'cgroup' field for output
There's no field for the cgroup, let's add one. To do that, users need to specify --all-cgroup option for perf record to capture the cgroup info. $ perf record --all-cgroups -- true $ perf script -F comm,pid,cgroup true 337112 /user.slice/user-657345.slice/user@657345.service/... true 337112 /user.slice/user-657345.slice/user@657345.service/... true 337112 /user.slice/user-657345.slice/user@657345.service/... true 337112 /user.slice/user-657345.slice/user@657345.service/... If it's recorded without the --all-cgroups, it'd complain. $ perf script -F comm,pid,cgroup Samples for 'cycles:u' event do not have CGROUP attribute set. Cannot print 'cgroup' field. Hint: run 'perf record --all-cgroups ...' Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20230126213610.3381147-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Namhyung Kim
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Arnaldo Carvalho de Melo
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Feb 2, 2023
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