Re: [RFC 1/3] rv: add per-edge dwell-time statistics primitive
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From: Gabriele Monaco <gmonaco@redhat.com>
Date: 2026-08-27 08:22:48
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linux-kselftest, linux-trace-kernel, lkml
On Thu, 2026-08-27 at 09:23 +0200, Tobias Schaffner wrote:
quoted hunk ↗ jump to hunk
Add a small primitive that records, per automaton edge, how long the monitor dwelled before taking it with a count, a sum and a maximum. The counters are per-CPU and lock-free, so a monitor's hot path can update them without disabling interrupts and without perturbing the very latency being measured. Signed-off-by: Tobias Schaffner <tobias.schaffner@siemens.com> --- MAINTAINERS | 1 + include/linux/rv_edge_stat.h | 45 ++++++++++++++++++++++++++++++++++++ 2 files changed, 46 insertions(+) create mode 100644 include/linux/rv_edge_stat.hdiff --git a/MAINTAINERS b/MAINTAINERS index 8014b9f8253e..04589dda0873 100644 --- a/MAINTAINERS +++ b/MAINTAINERS@@ -23654,6 +23654,7 @@ L: linux-trace-kernel@vger.kernel.orgS: Maintained F: Documentation/trace/rv/ F: include/linux/rv.h +F: include/linux/rv_edge_stat.h F: include/rv/
Any reason why you don't use include/rv/edge_stat.h ? You wouldn't need to touch the maintainers file and could just #include <rv/edge_stat.h> Thanks, Gabriele