On Mon, 2026-02-09 at 11:24 +0200, Costa Shulyupin wrote:
> sysconf(_SC_NPROCESSORS_CONF) (via get_nprocs_conf) reflects
> cpu_possible_mask, which is fixed at boot time, so querying it
> repeatedly is unnecessary.
>
> Replace multiple calls to sysconf(_SC_NPROCESSORS_CONF) with a single
> global nr_cpus variable initialized once at startup.
>
> v2:
> - Add `#pragma once` in timerlat_u.h to avoid redefinition errors with
> pre-C23 compilers.
>
> Costa Shulyupin (4):
> tools/rtla: Consolidate nr_cpus usage across all tools
> tools/rtla: Remove unneeded nr_cpus arguments
> tools/rtla: Remove unneeded nr_cpus members
> tools/rtla: Remove unneeded nr_cpus from for_each_monitored_cpu
>
> tools/tracing/rtla/src/common.c | 7 ++-
> tools/tracing/rtla/src/common.h | 4 +-
> tools/tracing/rtla/src/osnoise_hist.c | 26 +++++------
> tools/tracing/rtla/src/osnoise_top.c | 16 ++-----
> tools/tracing/rtla/src/timerlat.c | 9 ++--
> tools/tracing/rtla/src/timerlat_aa.c | 11 ++---
> tools/tracing/rtla/src/timerlat_bpf.c | 5 +--
> tools/tracing/rtla/src/timerlat_bpf.h | 6 +--
> tools/tracing/rtla/src/timerlat_hist.c | 62 +++++++++++---------------
> tools/tracing/rtla/src/timerlat_top.c | 47 +++++++------------
> tools/tracing/rtla/src/timerlat_u.c | 9 ++--
> tools/tracing/rtla/src/timerlat_u.h | 1 +
> tools/tracing/rtla/src/utils.c | 10 +----
> 13 files changed, 80 insertions(+), 133 deletions(-)
Reviewed-by: Crystal Wood <crwood@redhat.com>
-Crystal