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0a892c1c94
During the processing of /proc during event synthesis new processes may start. Add a dummy event if /proc is to be processed, to capture mmaps for starting processes. This reuses the existing logic for initial-delay. v3 fixes the attr test of test-record-C0 v2 fixes the dummy event configuration and a branch stack issue. Suggested-by: Stephane Eranian <eranian@google.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20200422173615.59436-1-irogers@google.com [ split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
50 lines
758 B
Text
50 lines
758 B
Text
# Event added by system-wide or CPU perf-record to handle the race of
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# processes starting while /proc is processed.
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[event]
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fd=1
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group_fd=-1
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cpu=*
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pid=-1
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flags=8
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type=1
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size=120
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config=9
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sample_period=4000
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sample_type=455
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read_format=4
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# Event will be enabled right away.
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disabled=0
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inherit=1
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pinned=0
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exclusive=0
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exclude_user=0
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exclude_kernel=0
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exclude_hv=0
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exclude_idle=0
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mmap=1
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comm=1
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freq=1
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inherit_stat=0
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enable_on_exec=0
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task=1
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watermark=0
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precise_ip=0
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mmap_data=0
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sample_id_all=1
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exclude_host=0
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exclude_guest=0
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exclude_callchain_kernel=0
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exclude_callchain_user=0
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mmap2=1
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comm_exec=1
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context_switch=0
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write_backward=0
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namespaces=0
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use_clockid=0
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wakeup_events=0
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bp_type=0
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config1=0
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config2=0
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branch_sample_type=0
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sample_regs_user=0
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sample_stack_user=0
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