Date: Wed, 11 Apr 2007 02:05:59 +0200 From: Max Laier <max@love2party.net> To: freebsd-stable@freebsd.org Subject: Re: uid/gid lookups slower on 6.2 than 4.x? Message-ID: <200704110206.08099.max@love2party.net> In-Reply-To: <20070410231942.GB13500@sysmon.tcworks.net> References: <20070410231942.GB13500@sysmon.tcworks.net>
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--nextPart61909600.fyzHTxTbIT Content-Type: text/plain; charset="iso-8859-6" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Wednesday 11 April 2007 01:19, Scott Lambert wrote: > I've run into an interesting performance "issue" with ls on a > 6.2-STABLE box, web1. This box is going to replace my current 4.11 > box, ns, and is not currently active. It's running all the daemons it > will be in production, but traffic is not pointed at it yet. > > I don't think the gmirror vs. adaptec RAID disk subsystem would explain > the performance differences. I could be wrong. If I am, I'm going to > have to get a RAID card for the new box. > > root@web1 /home > 17:58:57 Tue Apr 10 # time ls -l | wc -l > 3135 > > real 0m35.224s > user 0m6.748s > sys 0m28.482s =2E.. > root@web1 /home > 18:01:13 Tue Apr 10 # uname -a > FreeBSD web1.hosting.tcworks.net 6.2-STABLE-200702 FreeBSD > 6.2-STABLE-200702 #0: Sun Feb 4 13:35:09 UTC 2007 =20 > root@dessler.cse.buffalo.edu:/usr/obj/usr/src/sys/SMP i386 > > root@web1 /home > 18:03:38 Tue Apr 10 # time ls -ln | wc -l > 3135 > > real 0m0.054s > user 0m0.030s > sys 0m0.031s Well, with nsswitch things are a bit more difficult. If you don't need=20 it, you can just use nsswitch.conf to turn it off for passwd/group. =20 Otherwise, you'll have to look at MFCing cached(8) from current. =2D-=20 /"\ Best regards, | mlaier@freebsd.org \ / Max Laier | ICQ #67774661 X http://pf4freebsd.love2party.net/ | mlaier@EFnet / \ ASCII Ribbon Campaign | Against HTML Mail and News --nextPart61909600.fyzHTxTbIT Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQBGHCZwXyyEoT62BG0RAtFmAJ9pB+0NYDQ22zLaGXo2HRgsAuzkjACfdjxg S/dGtZrvALCQELno/kSikmQ= =jd/j -----END PGP SIGNATURE----- --nextPart61909600.fyzHTxTbIT--
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