Ian Rogers c760174401 perf cpumap: Reduce cpu size from int to int16_t ... Fewer than 32k logical CPUs are currently supported by perf. A cpumap is indexed by an integer (see perf_cpu_map__cpu) yielding a perf_cpu that wraps a 4-byte int for the logical CPU - the wrapping is done deliberately to avoid confusing a logical CPU with an index into a cpumap. Using a 4-byte int within the perf_cpu is larger than required so this patch reduces it to the 2-byte int16_t. For a cpumap containing 16 entries this will reduce the array size from 64 to 32 bytes. For very large servers with lots of logical CPUs the size savings will be greater. Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: James Clark <james.clark@linaro.org> Link: https://lore.kernel.org/r/20250210191231.156294-1-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>		2025-02-27 08:47:25 -08:00
..
internal	libperf cpumap: Hide/reduce scope of MAX_NR_CPUS	2024-12-09 17:52:41 -03:00
perf	perf cpumap: Reduce cpu size from int to int16_t	2025-02-27 08:47:25 -08:00