diff options
| author | Leo Yan <leo.yan@arm.com> | 2024-08-12 11:34:59 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2024-08-12 18:59:22 +0200 |
| commit | 043da846c2b2dfd5b187bf3a9993b8fb0a6ed94a (patch) | |
| tree | dfa81d4c73e5c7d6deef861396ff1d8bbf6e75ff /tools/perf/Documentation/perf-top.txt | |
| parent | perf script: add --addr2line option (diff) | |
| download | linux-043da846c2b2dfd5b187bf3a9993b8fb0a6ed94a.tar.xz linux-043da846c2b2dfd5b187bf3a9993b8fb0a6ed94a.zip | |
perf docs: Refine the description for the buffer size
Current description for the AUX trace buffer size is misleading. When a
user specifies the option '-m,512M', it represents a size value in bytes
(512MiB) but not 512M pages (512M x 4KiB regard to a page of 4KiB).
Make the document clear that the normal buffer and the AUX tracing
buffer share the same semantics. Syncs the documents for consistent
text.
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Leo Yan <leo.yan@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240812093459.2575278-1-leo.yan@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-top.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-top.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt index 667e5102075e..af3e4230c72f 100644 --- a/tools/perf/Documentation/perf-top.txt +++ b/tools/perf/Documentation/perf-top.txt @@ -83,8 +83,8 @@ Default is to monitor all CPUS. -m <pages>:: --mmap-pages=<pages>:: Number of mmap data pages (must be a power of two) or size - specification with appended unit character - B/K/M/G. The - size is rounded up to have nearest pages power of two value. + specification in bytes with appended unit character - B/K/M/G. + The size is rounded up to the nearest power-of-two page value. -p <pid>:: --pid=<pid>:: |