diff options
| author | Kyle Meyer <kyle.meyer@hpe.com> | 2024-12-05 20:40:28 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2024-12-09 17:52:41 -0300 |
| commit | 9a1e106550be574d75e3eba5e9aa4ef96473e058 (patch) | |
| tree | f2056373f1382efc80abd95ec13b26fe78331669 | |
| parent | 9e7a00ec6a8844b4e62eaa7383c837e14953460b (diff) | |
perf: Increase MAX_NR_CPUS to 4096
Systems have surpassed 2048 CPUs. Increase MAX_NR_CPUS to 4096.
Bitmaps declared with MAX_NR_CPUS bits will increase from 256B to 512B,
cpus_runtime will increase from 81960B to 163880B, and max_entries will
increase from 8192B to 16384B.
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: Kyle Meyer <kyle.meyer@hpe.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ben Gainey <ben.gainey@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20241206044035.1062032-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/lib/perf/include/internal/cpumap.h | 2 | ||||
| -rw-r--r-- | tools/perf/perf.h | 2 | ||||
| -rw-r--r-- | tools/perf/util/bpf_skel/kwork_top.bpf.c | 4 |
3 files changed, 5 insertions, 3 deletions
diff --git a/tools/lib/perf/include/internal/cpumap.h b/tools/lib/perf/include/internal/cpumap.h index 49649eb51ce4..3cf28522004e 100644 --- a/tools/lib/perf/include/internal/cpumap.h +++ b/tools/lib/perf/include/internal/cpumap.h @@ -22,7 +22,7 @@ DECLARE_RC_STRUCT(perf_cpu_map) { }; #ifndef MAX_NR_CPUS -#define MAX_NR_CPUS 2048 +#define MAX_NR_CPUS 4096 #endif struct perf_cpu_map *perf_cpu_map__alloc(int nr_cpus); diff --git a/tools/perf/perf.h b/tools/perf/perf.h index c004dd4e65a3..3cb40965549f 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -3,7 +3,7 @@ #define _PERF_PERF_H #ifndef MAX_NR_CPUS -#define MAX_NR_CPUS 2048 +#define MAX_NR_CPUS 4096 #endif enum perf_affinity { diff --git a/tools/perf/util/bpf_skel/kwork_top.bpf.c b/tools/perf/util/bpf_skel/kwork_top.bpf.c index 594da91965a2..73e32e063030 100644 --- a/tools/perf/util/bpf_skel/kwork_top.bpf.c +++ b/tools/perf/util/bpf_skel/kwork_top.bpf.c @@ -18,7 +18,9 @@ enum kwork_class_type { }; #define MAX_ENTRIES 102400 -#define MAX_NR_CPUS 2048 +#ifndef MAX_NR_CPUS +#define MAX_NR_CPUS 4096 +#endif #define PF_KTHREAD 0x00200000 #define MAX_COMMAND_LEN 16 |