This is a series of improvements for rtla, mainly as a result of our daily usage of the tool debugging problems at red hat. The cgroup support and house keeping options are from our usage of the tool debugging containers. The auto-analysis overhead reduction is needed when we go to large boxes - but it is really hand in practice, as it gives an idea of the problem without having to look at the trace. Finally, running hwnoise 100 % of CPU time might cause some systems to slow down too much. Reduce its utilization to 75% by default to avoid problems for people using it for the first time. Daniel Bristot de Oliveira (8): rtla: Add -C cgroup support rtla: Add --house-keeping option rtla: Change monitored_cpus from char * to cpu_set_t rtla: Automatically move rtla to a house-keeping cpu rtla/timerlat: Give timerlat auto analysis its own instance rtla/timerlat_hist: Add auto-analysis support rtla: Start the tracers after creating all instances rtla/hwnoise: Reduce runtime to 75% Documentation/tools/rtla/common_options.rst | 8 + .../tools/rtla/common_timerlat_aa.rst | 7 - .../tools/rtla/rtla-timerlat-hist.rst | 7 +- .../tools/rtla/rtla-timerlat-top.rst | 7 + tools/tracing/rtla/src/osnoise_hist.c | 90 +++++- tools/tracing/rtla/src/osnoise_top.c | 83 +++++- tools/tracing/rtla/src/timerlat_aa.c | 35 ++- tools/tracing/rtla/src/timerlat_aa.h | 5 +- tools/tracing/rtla/src/timerlat_hist.c | 139 +++++++-- tools/tracing/rtla/src/timerlat_top.c | 127 +++++++-- tools/tracing/rtla/src/utils.c | 266 ++++++++++++++++-- tools/tracing/rtla/src/utils.h | 5 + 12 files changed, 684 insertions(+), 95 deletions(-) -- 2.38.1
