On 31 October 2014 01:26, Brendan Gregg <brendan.d.gr...@gmail.com> wrote: > > Yes. When I'm using profiling data, I like full stacks for making > flame graphs. For the FreeBSD kernel, 32 frames should usually be > enough (I have a flame graph that reaches 24 frames for the kernel, > but no more). For user-level, I'd probably need ~100. So making the > compiled-in default to 32 would hopefully be sufficient for most > kernel profiling, and one would need to bump that up for deep > user-level stacks. I guess this would also need > PMC_CALLCHAIN_DEPTH_MAX = 128 to work.
I have a review up to bump the default to 32 and the maximum to 128: https://reviews.freebsd.org/D1203 _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "freebsd-performance-unsubscr...@freebsd.org"
