Date: Thu, 22 Feb 2001 05:45:02 -0800 (PST) From: John Baldwin <jhb@FreeBSD.org> To: Andrea Campi <andrea@webcom.it> Cc: freebsd-current@FreeBSD.org Subject: Re: -CURRENT slowdown in last 2 weeks Message-ID: <XFMail.010222054502.jhb@FreeBSD.org> In-Reply-To: <20010222081232.A7793@webcom.it>
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On 22-Feb-01 Andrea Campi wrote: >> >> Hmm, Feb 3-5 (looks). >> >> You mean the preemptive scheduling committed on Feb 1? Can you try updating >> to early this week to see if it goes away? > > Hi John, > > every "recent" version I tried resulted in a slowdown so I didn't recompile > very > often; until tonight, I was still runninng a kernel from 20010214. > Tonight I created a new kernel but I finally figured out I should take out > most > debugging options: > > options DDB ># options WITNESS ># options WITNESS_DDB ># options MUTEX_DEBUG ># options INVARIANT_SUPPORT ># options INVARIANTS Oh goodness, don't use MUTEX_DEBUG, that is the killer. You want WITNESS and INVARIANTS back on though. -- John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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