On Sunday 22 April 2007 17:00, Willy Tarreau wrote: > On Sun, Apr 22, 2007 at 02:41:48PM +1000, Con Kolivas wrote: > > A significant bugfix for SMP balancing was just posted for the staircase > > deadline cpu scheduler which improves behaviour dramatically on any SMP > > machine. > > > > Thanks to Willy Tarreau for noticing likely fault point. > > > > Also requested was a version in the Makefile so this version of the patch > > adds -sd045 to the kernel version. > > Con, I'm sorry, but it is worse with this one :-(
Well that was quick testing, thanks. > > The lag when typing in xterms is even more noticeable and vmstat output > oscillates between 8 and 65, with idle rates around 50%, as you can see > below : > Renicing X or not does not change anything here. > > I suspect that the bug you fixed was hiding another one :-/ > If you want me to test another patch, feel free to ask. Thanks. Clearly still a bug in there. I have to keep looking. The other changes are still valid so I have to run with them. > Willy -- -ck - 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/
