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Date:      Wed, 4 Sep 2002 10:11:00 -0400 (EDT)
From:      Andrew Gallatin <gallatin@cs.duke.edu>
To:        John Baldwin <jhb@FreeBSD.ORG>
Cc:        peter@FreeBSD.ORG, alpha@FreeBSD.ORG
Subject:   Re: FYI: Buffer cache fix gave major speedup
Message-ID:  <15734.5236.873517.46531@grasshopper.cs.duke.edu>
In-Reply-To: <XFMail.20020904100114.jhb@FreeBSD.org>
References:  <15734.3540.941843.110159@grasshopper.cs.duke.edu> <XFMail.20020904100114.jhb@FreeBSD.org>

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John Baldwin writes:
 > >  > 
 > >  > If this bug exists in 4.x we should really fix it there as well.
 > >  > 
 > > 
 > > Are you talking about btoc()?  I think stable is immune.  A simple
 > > test shows the buffer cache is working just fine there.
 > 
 > Ah, right.

Maybe not..  The same simple test on a mid-july -current shows the
buffer cache works there too, I assume:

<10:07am>monet/gallatin:tmp>du -hs zot
200M			       zot
<10:07am>monet/gallatin:tmp>dd if=zot of=/dev/null bs=64k
3200+0 records in
3200+0 records out
209715200 bytes transferred in 1.871934 secs (112031304 bytes/sec)

(and iostat shows no disk activity)

I guess I'm confused..

Drew

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