Date: Mon, 04 Feb 2008 15:43:40 +0100 From: Michael Rebele <m.rebele@web.de> To: Julian Elischer <julian@elischer.org> Cc: FreeBSD Current <current@freebsd.org> Subject: Re: needs a tester with an SMP 7.0 box Message-ID: <47A7249C.4080902@web.de> In-Reply-To: <47A21ED6.5070303@elischer.org> References: <47A21ED6.5070303@elischer.org>
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Julian Elischer wrote: > > if you have a 7.0 SMP (8 way if possible) box and can stand > a little down time, I'm looking for someone to test the following: > > This snippet may freeze the process after a while: > > [...] > > with the following patch applied: > http://www.freebsd.org/~julian/kse-7.diff > it should not. > > can someone with a 7.0 machine please confirm this? > (requires a recompile of libkse and linking with libkse.) > (you could call it something else for the test). > > I can confirm that the process with the applied patch runs far better than without - on a 7.0-PRERELEASE FreeBSD 7.0-PRERELEASE (i386). It's a P4 System with HT enabled (Kernel is compiled with SMP). Without the patch, the system is continuously accessing the Harddisk. The Datarate is about 6MB/s - i don't know what's going on there. There's enough RAM marked as free (about 460MB), though no reason for swapping. I don't see this behaviour if the Code is linked against -pthread. If i apply the patch to libkse, then the process linked against -lkse behaves like one against -pthread. Without the patch, i've also the fatal error messages as stated by Mark Kirkwood, with the patch they are gone. Looks good to me! Michael
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