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Kan Liangacmel
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perf docs: Update the documentation for the save_type filter
Update the documentation to reflect the kernel changes. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20220816125612.2042397-2-kan.liang@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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tools/perf/Documentation/perf-record.txt

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@@ -397,6 +397,9 @@ following filters are defined:
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- abort_tx: only when the target is a hardware transaction abort
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- cond: conditional branches
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- save_type: save branch type during sampling in case binary is not available later
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For the platforms with Intel Arch LBR support (12th-Gen+ client or
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4th-Gen Xeon+ server), the save branch type is unconditionally enabled
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when the taken branch stack sampling is enabled.
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The option requires at least one branch type among any, any_call, any_ret, ind_call, cond.

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