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| author | Tomas Glozar <tglozar@redhat.com> | 2025-04-25 11:18:39 +0200 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2025-05-08 09:36:09 -0400 |
| commit | 17f89102fe23d7389085a8820550df688f79888a (patch) | |
| tree | ff10ff4c59bbd0b32361c74e05a33f4bc4dc31da /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | a54665ab7c20081cb6299d79dcab9960752bc741 (diff) | |
tracing/osnoise: Allow arbitrarily long CPU string
Allocate kernel memory for processing CPU string
(/sys/kernel/tracing/osnoise/cpus) also in osnoise_cpus_write to allow
the writing of a CPU string of an arbitrary length.
This replaces the 256-byte buffer, which is insufficient with the rising
number of CPUs. For example, if I wanted to measure on every even CPU
on a system with 256 CPUs, the string would be 456 characters long.
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20250425091839.343289-1-tglozar@redhat.com
Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions