On Fri, Oct 26, 2007 at 03:57:03PM +0000, Alexey Dokuchaev wrote: > On Fri, Oct 26, 2007 at 06:55:00AM +0000, Pawel Jakub Dawidek wrote: > > pjd 2007-10-26 06:55:00 UTC > > > > FreeBSD src repository > > > > Modified files: > > sys/geom geom_io.c > > Log: > > Save stack only when KTR_GEOM is both compiled into the kernel and enabled > > in debug.ktr.mask. Because saving stack is very expensive, it's better > > only > > to do it when one really wants to. > > Do you by chance have benchmark results? I'd like to know what impact > does it cause, unless I'm asking too much. :-)
It can make your system to crawl when you do a lot of I/Os. -- Pawel Jakub Dawidek http://www.wheel.pl [EMAIL PROTECTED] http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am!
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