Re: [PATCH v4 7/9] perf config: Add core.hybrid-merge to configure event merging

[sashiko-bot@kernel.org]

> Provide a core.hybrid-merge configuration option in .perfconfig
> to allow enabling hybrid event aggregation by default, avoiding
> the need to pass --hybrid-merge explicitly on every invocation.
> 
> The config value is a default rather than an explicit request, so with
> --hierarchy it is ignored with a warning, while giving both
> --hierarchy and --hybrid-merge on the command line remains an error.
> For the same reason it is silently ignored when there are no events to
> merge, as would be the case on any machine with a single core PMU,
> whereas an explicit --hybrid-merge still warns. Record whether the
> option came from the command line in symbol_conf so both can tell the
> two apart.
> 
> perf stat has its own merging options for counting, the sampling
> core.hybrid-merge deliberately doesn't alter it and its
> --hybrid-merge must still be given explicitly.
> 
> Signed-off-by: Ian Rogers <irogers@google.com>

Sashiko has reviewed this patch and found no issues. It looks great!

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260917050708.704702-1-irogers@google.com?part=7