diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2025-10-27 09:44:52 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-11-04 08:32:41 +0100 |
| commit | 5412910487d0839111e4f2f3a6f33f6c9af9b007 (patch) | |
| tree | 18e9a4a48326a87bb60f2457edadb82d6ae220df /include/linux/overflow.h | |
| parent | dab344753e021fe84c24f9d8b0b63cb5bcf463d7 (diff) | |
rseq: Expose lightweight statistics in debugfs
Analyzing the call frequency without actually using tracing is helpful for
analysis of this infrastructure. The overhead is minimal as it just
increments a per CPU counter associated to each operation.
The debugfs readout provides a racy sum of all counters.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://patch.msgid.link/20251027084307.027916598@linutronix.de
Diffstat (limited to 'include/linux/overflow.h')
0 files changed, 0 insertions, 0 deletions