Marc Fonvieille wrote: > On Sat, Oct 06, 2007 at 09:44:29AM +0200, Marc Fonvieille wrote: > >> On Tue, Oct 02, 2007 at 04:53:33PM -0700, Jeff Roberson wrote: >> >>> Enclosed is a patch that does two things: >>> >>> 1) Reduces UP context switch time by over 10% making it faster than 4BSD >>> on UP. On SMP it's hard to compare since ULE can do as many as 30x as many >>> switches per second on my 8way system. >>> >>> 2) Restores old sched_yield() behavior from 6.x. This was changed in >>> -current unintentionally I think. >>> >>> I'd appreciate any extra testing. The ULE context switch time improvements >>> required some changes to the frequency that we recalculate priorities. I'm >>> mostly interested in hearing whether this causes any regression in normal >>> workloads. >>> >>> >> [tested with _ULE] >> >> This seems to help a bit the things for me (desktop use during >> compilations). But 6.X is still faster, i.e, less lags and less jerky >> mouse movements during port builds. >> Thanks for spending time improving things, I really appreciate it. >> >> > > After more testing, the lag problem is caused by the use of firefox. > Once I try to open a heavy webpage, both firefox and Xorg become slow, > the rest is fine. By the "rest" I mean: audacious playing mp3s, wget and > ncftp downloading huge (100MB) files, compiling wine and aMule running. > I find the lag occuring with the 4BSD scheduler as well. dailytech.com is a particularly good site at lagging the system (though a great website). Perhaps this isn't scheduler related? Cheers, BenjaminReceived on Sat Oct 06 2007 - 10:18:09 UTC
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