On Sat, Mar 10, 2007 at 12:28:38PM +1100, Con Kolivas wrote: > On Saturday 10 March 2007 11:49, Matt Mackall wrote: > > On Sat, Mar 10, 2007 at 11:34:26AM +1100, Con Kolivas wrote: > > > Ok, so some of the basics then. Can you please give me the output of 'top > > > -b' running for a few seconds during the whole affair? > > > > Here you go: > > > > http://selenic.com/baseline > > http://selenic.com/underload > > > > This is with 2.6.20+rsdl+tickfix at HZ=250. > > > > Something I haven't mentioned about my setup is that I'm using ccache. > > And it turns out disabling ccache makes a large difference. Going to > > switch back to a NO_HZ kernel and see what that looks like. > > Your X is reniced to -10 so.... try again with X nice 0 please.
Doh, can't believe I didn't notice that. That's apparently a default in Debian/unstable (not sure where to tweak it). Reniced: without ccache with ccache make -j 5 beryl good ok galeon ok/good ok mp3 good good terminal good ok mouse good ok We're still left with a big unexplained ccache differential, and a big NO_HZ vs HZ=250 differential. -- Mathematics is the supreme nostalgia of our time. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/