Messages in this thread |  | | Date | Tue, 24 Apr 2001 19:34:55 -0300 (BRT) | From | Marcelo Tosatti <> | Subject | [PATCH] remove wakeup_bdflush(0) from __alloc_pages() |
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Linus,
Can you please apply the following patch ?
It avoids allocators from waking up bdflush all the time even when it does not have any job to do (ie no more than 30% (default) of dirty buffers).
Thanks
On Tue, 24 Apr 2001, Colonel wrote:
> From: Colonel <klink@clouddancer.com> > To: marcelo@conectiva.com.br > CC: linux-kernel@vger.kernel.org > In-reply-to: <Pine.LNX.4.21.0104232030480.1264-100000@freak.distro.conectiva> > (message from Marcelo Tosatti on Mon, 23 Apr 2001 20:31:12 -0300 > (BRT)) > Subject: Re: 2.4.4-pre6 : THANKS! very snappy here [nt] > Reply-to: klink@clouddancer.com > References: <Pine.LNX.4.21.0104232030480.1264-100000@freak.distro.conectiva> > > Date: Mon, 23 Apr 2001 20:31:12 -0300 (BRT) > From: Marcelo Tosatti <marcelo@conectiva.com.br> > X-Sender: marcelo@freak.distro.conectiva > > > Just as curiosity --- did it got faster in pre5 ? > > On Mon, 23 Apr 2001, Colonel wrote: > > > but since you read it, system seems like it's running twice as fast > > > Actually, it made not be pre6. I patched the kernel per some thread > on LKML a few days before, but had not had the opportunity to reboot > and run it until pre6. The patch was : > > > --- linux/mm/page_alloc.c.~1~ Tue Mar 20 15:05:46 2001 > +++ linux/mm/page_alloc.c Sat Apr 21 19:01:47 2001 > @@ -454,7 +454,6 @@ > if (gfp_mask & __GFP_WAIT) { > memory_pressure++; > try_to_free_pages(gfp_mask); > - wakeup_bdflush(0); > goto try_again; > } > } > > > It would make more sense that the above change was responsible for the > improvement. >
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