Niklas, ns> time pmcstat -P instructions -O samples.out ./minisat_static ns> I would expect quite a lot more samples for a program that ns> runs for more than 20 seconds. Am I doing something wrong, Could you check whether the output of "pmccontrol -s", shows the 'interrupts dropped due to lack of space' count as non-zero? If it is, you will need to increase the tunable "kern.hwpmc.nsamples" till you get clean runs. I guess I should make pmcstat check and warn the user about sampling stalls encountered. nc> Btw, I needed to add apic to my kernel config for hwpmc to. nc> I guess this should be documented somewhere? It seems to be needed on the i386, but not on the amd64. Will fix. -- FreeBSD Volunteer, http://people.freebsd.org/~jkoshyReceived on Wed Sep 28 2005 - 07:58:55 UTC
This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:38:44 UTC