Date: Wed, 28 Mar 2001 08:58:06 +0200 (CEST) From: Soren Schmidt <sos@freebsd.dk> To: gersh@sonn.com (Gersh) Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: crash dump speed up patch. Message-ID: <200103280658.IAA71174@freebsd.dk> In-Reply-To: <Pine.BSF.4.21.0103271335580.3635-200000@tabby.sonn.com> from Gersh at "Mar 27, 2001 01:46:40 pm"
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It seems Gersh wrote: > Ive writen a quick patch for dev/ata/ata-disk.c:addump under > 4.0-stable (03/26/01) which is considerbally faster. > > I did dumps on a SMP system with 512 megs of ram. > > Old: 201 seconds. > New: 59 seconds. > > What I could gather from talking to people over irc/email about the > problem was that there was a DELAY(1000) in between each printf > to deal with problems with serial connections to the debugger. The > soultion I came up with simply to display a smaller ammount of printf's > the output looks like this: > > Any thoughts or comments ? Thats not the only reason that DEALY(1000) is there, its to cope with older disks that has problems when we get too fast here... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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