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Diffstat (limited to 'tools/perf/Documentation/perf-record.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-record.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 246dee081efd..d232b13ea713 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -435,6 +435,11 @@ Specify vmlinux path which has debuginfo. --buildid-all:: Record build-id of all DSOs regardless whether it's actually hit or not. +--aio[=n]:: +Use <n> control blocks in asynchronous (Posix AIO) trace writing mode (default: 1, max: 4). +Asynchronous mode is supported only when linking Perf tool with libc library +providing implementation for Posix AIO API. + --all-kernel:: Configure all used events to run in kernel space. |