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| author | Daniel Bristot de Oliveira <bristot@kernel.org> | 2023-06-06 19:12:18 +0300 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2023-06-13 23:30:13 +0300 |
| commit | c58a3f8c7f974d171d1b6897a71a078a3bc7afd3 (patch) | |
| tree | 0472462ef502afd887f242445974cb8e4780b327 /tools/tracing/rtla/src/utils.h | |
| parent | 894c29c76b2b4c2cfbe1482dab42e4f03b49cf18 (diff) | |
| download | linux-c58a3f8c7f974d171d1b6897a71a078a3bc7afd3.tar.xz | |
rtla: Automatically move rtla to a house-keeping cpu
When the user sets -c <cpu-list> try to move rtla out of the <cpu-list>,
even without an -H option. This is useful to avoid having rtla
interfering with the workload.
This works by removing <cpu-list> from rtla's current affinity.
If rtla fails to move itself away it is not that of a problem as this
is an automatic measure.
Link: https://lkml.kernel.org/r/c54304d90c777310fb85a3e658d1449173759aab.1686066600.git.bristot@kernel.org
Cc: William White <chwhite@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'tools/tracing/rtla/src/utils.h')
| -rw-r--r-- | tools/tracing/rtla/src/utils.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/tracing/rtla/src/utils.h b/tools/tracing/rtla/src/utils.h index 9ab2f0d7bc1c..dec59163cfbc 100644 --- a/tools/tracing/rtla/src/utils.h +++ b/tools/tracing/rtla/src/utils.h @@ -60,6 +60,7 @@ int parse_cpu_set(char *cpu_list, cpu_set_t *set); int set_comm_sched_attr(const char *comm_prefix, struct sched_attr *attr); int set_comm_cgroup(const char *comm_prefix, const char *cgroup); int set_cpu_dma_latency(int32_t latency); +int auto_house_keeping(cpu_set_t *monitored_cpus); #define ns_to_usf(x) (((double)x/1000)) #define ns_to_per(total, part) ((part * 100) / (double)total) |