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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 18:24:20 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 18:24:20 +0000 |
commit | 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 (patch) | |
tree | e5d88d25d870d5dedacb6bbdbe2a966086a0a5cf /src/seastar/debug | |
parent | Initial commit. (diff) | |
download | ceph-upstream.tar.xz ceph-upstream.zip |
Adding upstream version 14.2.21.upstream/14.2.21upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rwxr-xr-x | src/seastar/debug/task-latency.stap | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/seastar/debug/task-latency.stap b/src/seastar/debug/task-latency.stap new file mode 100755 index 00000000..06610982 --- /dev/null +++ b/src/seastar/debug/task-latency.stap @@ -0,0 +1,24 @@ +#!/usr/bin/stap + +# usage: task_latency.stap process_name latency_threshold_ms + +global start_time + +probe process(@1).mark("reactor_run_tasks_single_start") { + start_time[tid()] = gettimeofday_us() +} + +probe process(@1).mark("reactor_run_tasks_single_end") { + delete start_time[tid()] +} + +probe timer.profile { + if ([tid()] in start_time) { + now = gettimeofday_us() + start = start_time[tid()] + if ((now - start) > $2 * 1000) { + printf("detected tasks running for >%sms\n", @2) + print_usyms(ubacktrace()) + } + } +} |