Messages in this thread | | | Date | Wed, 3 Nov 2021 10:05:07 -0400 | From | Steven Rostedt <> | Subject | [GIT PULL] tracing: Set two for 5.16 |
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Linus,
This code was still under testing when I pushed my first set, as people depended on it. This set has now satisfactorily passed my test suite.
Second set of tracing updates for 5.16:
- osnoise and timerlat updates that will work with the RTLA tool (Real-Time Linux Analysis). Specifically it disconnects the work load (threads that look for latency) from the tracing instances attached to them, allowing for more than one instance to retrieve data from the work load.
- Optimization on division in the trace histogram trigger code to use shift and multiply when possible. Also added documentation.
- Fix prototype to my_direct_func in direct ftrace trampoline sample code.
Please pull the latest trace-v5.16-2 tree, which can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git trace-v5.16-2
Tag SHA1: d17edd07178249c50f80305c507626f15fbf363a Head SHA1: 67d4f6e3bf5dddced226fbf19704cdbbb0c98847
Daniel Bristot de Oliveira (9): tracing/osnoise: Do not follow tracing_cpumask tracing/osnoise: Improve comments about barrier need for NMI callbacks tracing/osnoise: Split workload start from the tracer start tracing/osnoise: Use start/stop_per_cpu_kthreads() on osnoise_cpus_write() tracing/osnoise: Support a list of trace_array *tr tracing/osnoise: Remove TIMERLAT ifdefs from inside functions tracing/osnoise: Allow multiple instances of the same tracer tracing/osnoise: Remove STACKTRACE ifdefs from inside functions tracing/osnoise: Remove PREEMPT_RT ifdefs from inside functions
Jiri Olsa (1): ftrace/samples: Add missing prototype for my_direct_func
Kalesh Singh (4): tracing/histogram: Optimize division by constants tracing/histogram: Update division by 0 documentation tracing/histogram: Document hist trigger variables tracing/selftests: Add tests for hist trigger expression parsing
---- Documentation/trace/histogram.rst | 3 +- kernel/trace/trace.c | 11 + kernel/trace/trace_events_hist.c | 105 +++- kernel/trace/trace_osnoise.c | 615 +++++++++++++++------ samples/ftrace/ftrace-direct-multi.c | 2 + .../test.d/trigger/trigger-hist-expressions.tc | 63 +++ 6 files changed, 616 insertions(+), 183 deletions(-) create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-expressions.tc ---------------------------
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