Daniel Bristot de Oliveira e8c44d3b71 rtla/timerlat: Do not stop user-space if a cpu is offline ... If no CPU list is passed, timerlat in user-space will dispatch one thread per sysconf(_SC_NPROCESSORS_CONF). However, not all CPU might be available, for instance, if HT is disabled. Currently, rtla timerlat is stopping the session if an user-space thread cannot set affinity to a CPU, or if a running user-space thread is killed. However, this is too restrictive. So, reduce the error to a debug message, and rtla timerlat run as long as there is at least one user-space thread alive. Link: https://lore.kernel.org/lkml/59cf2c882900ab7de91c6ee33b382ac7fa6b4ed0.1694781909.git.bristot@kernel.org Fixes: cdca4f4e5e ("rtla/timerlat_top: Add timerlat user-space support") Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>		2023-09-22 14:43:46 +02:00
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latency	tracing: Always use canonical ftrace path	2023-02-18 14:34:09 -05:00
rtla	rtla/timerlat: Do not stop user-space if a cpu is offline	2023-09-22 14:43:46 +02:00
Makefile	tools/tracing: Update Makefile to build rtla	2022-01-27 19:15:47 -05:00