On 7/17/19 23:14, Greg KH wrote: > > 100ms seems like a really long time, what exactly is it doing during > that time? Is the kernel spending too much time regenerating the > uevents? > > How many devices are you talking about? Any chance to see what really > is happening here by running perf to see where the hot-spots are?
There are ~80 devices being enumerated and 1ms per device still seem a little too long. Note, that we are running this on arm architecture. Maybe using perf or other tools to find out what exactly is taking this time is a good idea (never used perf to be honest). For now just by adding some verbose logs it seems that processing of each device actually takes around 1ms. Regards, Paweł Szewczyk _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
