rtla: Add --trace-buffer-size option
JIRA: https://issues.redhat.com/browse/RHEL-58061
Conflicts: RHEL-9.x does not have commit fb9e90a67ee9a ("rtla/timerlat: Make
user-space threads the default) and that leads to a small merge
conflict.
commit e9a4062e1527238c5649d0f4be794a8566fd77c9
Author: Daniel Bristot de Oliveira bristot@kernel.org
Date: Thu May 16 16:15:22 2024 +0200
rtla: Add --trace-buffer-size option
Add the option allow the users to set a different buffer size for the
trace. For example, in large systems, the user might be interested on
reducing the trace buffer to avoid large tracing files.
The buffer size is specified in kB, and it is only affecting
the tracing instance.
The function trace_set_buffer_size() appears on libtracefs v1.6,
so increase the minimum required version on Makefile.config.
Link: https://lkml.kernel.org/r/e7c9ca5b3865f28e131a49ec3b984fadf2d056c6.1715860611.git.bristot@kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Luis Claudio R. Goncalves lgoncalv@redhat.com