At 05 Oct 2001 18:25:04 -0700, Josh Green wrote: > > On Fri, 2001-10-05 at 07:26, Takashi Iwai wrote: > > > > Unfortunately I'm using not vanilla kernel so I cannot give you a > > whole patch (which will surely conflict). The only change I've done > > is only to fs/buffer.c. The patch to the file is attached below. > > It's to vanilla 2.4.10. Up to 2.4.11-pre4 is ok. > > If compiler complains taht "unlikely" is not defined, please add > > <linux/compiler.h> in includes. > > Please give a try and let me know if it works! > > > > > > ciao, > > > > Takashi > > I tried it out with Andrew Morton's LL patch. I've posted the results at > the same place: > http://www.c0nfusion.org/~josh/ > > Test 3 and 4 are the new ones. Test 3 is with your little buffer.c > patch.
Did you apply the exact patch I had posted? If so, it won't help at all. It's for PE kernel and not for LL. Please try the attached patch. This will reduce at least hich spikes in disk write/copy. Takashi
buffer.c-ll.dif
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