From: Tomas Glozar Date: Wed, 27 May 2026 14:49:28 +0000 (+0200) Subject: Documentation/rtla: Add -A/--aligned option X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2240050a93ac6328754f38d2545b414ba5654dc8;p=thirdparty%2Flinux.git Documentation/rtla: Add -A/--aligned option Cover the newly added -A/--aligned option that aligns timerlat threads using the corresponding feature of the timerlat tracer. A note is added to clarify what alignment means, similar to the note in the tracer implementation in commit 4245bf4dc58f ("tracing/osnoise: Add option to align tlat threads"). Link: https://lore.kernel.org/r/20260527144928.2944472-3-tglozar@redhat.com [ remove spurious newline ] Signed-off-by: Tomas Glozar --- diff --git a/Documentation/tools/rtla/common_timerlat_options.txt b/Documentation/tools/rtla/common_timerlat_options.txt index ab159b2cbfe7..100840f4c0ed 100644 --- a/Documentation/tools/rtla/common_timerlat_options.txt +++ b/Documentation/tools/rtla/common_timerlat_options.txt @@ -95,3 +95,14 @@ * **full** Print the entire stack trace, including unknown addresses. For unknown addresses, the raw pointer is printed. + +**-A**, **--aligned** *us* + + Align wake-up of timerlat threads to a set offset in microseconds. + + The alignment will be applied when the threads wake up at the start of tracing while + the timer for the first cycle is armed. Each thread sets its timer to the wake-up time + of the previous thread plus the alignment. + + This option may be used with any non-negative argument, including zero, which will + align threads so that they wake up all at the same time.