Date: Tue, 27 Mar 2001 09:18:32 +0100 From: Brian Somers <brian@Awfulhak.org> To: "David E. O'Brien" <obrien@FreeBSD.org> Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org, brian@Awfulhak.org Subject: Re: cvs commit: src/sbin/newfs newfs.c Message-ID: <200103270818.f2R8IWw48188@hak.lan.Awfulhak.org> In-Reply-To: Message from "David E. O'Brien" <obrien@FreeBSD.org> of "Mon, 26 Mar 2001 17:34:59 -0800." <200103270134.f2R1Yxj90971@freefall.freebsd.org>
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> obrien 2001/03/26 17:34:59 PST > > Modified files: > sbin/newfs newfs.c > Log: > The common wisdom is to use the largest number of cylinders per group. > So bump the default from `16' to `22', which is the largest value allowed > with the current default block size. This change increases the the > group size from 32MB/g to 44MB/g on a 4GB SCSI disk. Does this increase performance ? I'm just wondering what sort of threshold is optimum on a modern disk with a ficticious geometry.... do you have any numbers ? I would suspect the answer is ``yes performance is better'', but maybe some more exotic geometry would give more cylinders per group and even better performance ? > Revision Changes Path > 1.33 +5 -4 src/sbin/newfs/newfs.c -- Brian <brian@Awfulhak.org> <brian@[uk.]FreeBSD.org> <http://www.Awfulhak.org> <brian@[uk.]OpenBSD.org> Don't _EVER_ lose your sense of humour ! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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