Hello Tomasz, On Thu, Feb 16, 2023 at 6:55 PM Tomasz Duszynski <tduszyn...@marvell.com> wrote: > > This series adds self monitoring support i.e allows to configure and > read performance measurement unit (PMU) counters in runtime without > using perf utility. This has certain advantages when application runs on > isolated cores running dedicated tasks. > > Events can be read directly using rte_pmu_read() or using dedicated > tracepoint rte_eal_trace_pmu_read(). The latter will cause events to be > stored inside CTF file. > > By design, all enabled events are grouped together and the same group > is attached to lcores that use self monitoring funtionality. > > Events are enabled by names, which need to be read from standard > location under sysfs i.e > > /sys/bus/event_source/devices/PMU/events > > where PMU is a core pmu i.e one measuring cpu events. As of today > raw events are not supported. > > Tomasz Duszynski (4): > lib: add generic support for reading PMU events > pmu: support reading ARM PMU events in runtime > pmu: support reading Intel x86_64 PMU events in runtime > eal: add PMU support to tracing library
There are still some pending comments on this series and it can't be merged until they get sorted out. I noted two points : - Konstantin asked for better explanations in the implementation. - He also pointed out at using this feature with non EAL lcores. Could you work on this so we can consider this series for v23.07? Thank you. -- David Marchand
