Date: Tue, 15 Jun 2004 21:49:20 -0700 (PDT) From: Julian Elischer <julian@elischer.org> To: JG <amd64list@jpgsworld.com> Cc: freebsd-threads@freebsd.org Subject: Re: Possible Threading problem with -CURRENT / MySQL? Message-ID: <Pine.BSF.4.21.0406152148220.54410-100000@InterJet.elischer.org> In-Reply-To: <5.2.0.9.2.20040615210256.016c55e0@mail.ojoink.com>
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but you can run systat -vmstat when it is as fast as it can go... and you can do teh ktrace (man ktrace) and make the file available... :-) On Tue, 15 Jun 2004, JG wrote: > > > > >erk! :-) > > > >As I suggested elsewhere: > >----- quoted---- > > > >To check this you should try running systat -vmstat > >while noticing the slowdown and try see what is at 100%. > >if it turns out that you are NOT seeing disk or CPU limitted > >then the next step would be to take a snapshot of operations using > >ktrace -d -p (pid) for 20 second followe by krtace -C to turn it off > >again. > > > >then looking at the output may give an idea of what operations are > >taking too long, and what is waiting on what.. > > > >Julian > > > Julian, > > I think I'll wait for someone more qualified to evaluate these problems. > > I can't code, don't have commit access, and don't even know how to see > what was added or removed to -CURRENT when or where etc. > > The problem has been laid on the table of the FreeBSD gods by many > people now. FreeBSD would be dead in the water if it relied on the likes > of me to do assessments and debugging. > > Once I identified what was taking too long and what was waiting on what > - I would have no clue what to do or try from there, but I'm sure it would > require some coding experience. > > - Jeremy > > > > > _______________________________________________ > freebsd-threads@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-threads > To unsubscribe, send any mail to "freebsd-threads-unsubscribe@freebsd.org" >
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