The maximum AUX area is limited by the page size of the system. Update the documentation to reflect this. Signed-off-by: Shuai Xue <xueshuai@xxxxxxxxxxxxxxxxx> --- tools/perf/Documentation/perf-record.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 680396c56bd1..b0ee7b63da0e 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -292,6 +292,9 @@ OPTIONS Also, by adding a comma, the number of mmap pages for AUX area tracing can be specified. + The maximum AUX area is limited by the page size of the system. For + example with 4K pages configured, the maximum is 2GiB. + -g:: Enables call-graph (stack chain/backtrace) recording for both kernel space and user space. -- 2.39.3
