Date: Wed, 12 May 2004 14:19:27 +0200 From: Harald Schmalzbauer <h@schmalzbauer.de> To: freebsd-questions@freebsd.org Cc: Paul English <penglish@hydro.washington.edu> Subject: Re: Filesystem/disk performance problems Message-ID: <200405121419.27787@harryhomeworkstation> In-Reply-To: <20040511142907.X96722-100000@dynamic.hydro.washington.edu> References: <20040511142907.X96722-100000@dynamic.hydro.washington.edu>
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--Boundary-02=_PZhoA/ioZ6gJ/mh Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Am Dienstag, 11. Mai 2004 23:42 schrieb Paul English: > I have a filesystem which is showing some very odd problems on FreeBSD > 4.4. The system has one 60GB IDE drive for the os and some user partitions > and one 800GB array of 120GB disks attached to a 3ware IDE-RAID controlle= r. > The latter is all one big partition. > > For most files and directories, copying/transferring them around is not a > problem. But for a couple of very specific directories, copying them seems > next to impossible. When I attempt to copy these, after a few minutes of > *extremely* slow copying (<1k/min), the system load shoots up and the > system becomes virtually unusable. Maybe you want to read the following and try the patch: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=3D32920+0+archive/2004/freebsd= =2Dstable/20040509.freebsd-stable I'm not sure wether it patches cleanly against 4.4 but I'm sure you'll get= =20 assistance by the discussing people. =2DHarry > > In particular, working with one directory which is 11GB. Some > subdirectories, even large ones copy fine from /usr1 (a partition on the > 60GB disk) to /raid (the partition for the entire raid array). > > I can even make a tar of one of the non-working directories to /usr1, copy > the tar file to /raid (with no problems), then when I try to untar it on > /raid I get the same problem - very very slow (<1k/min) and then the > system load shoots up to 10+ and the system becomes unusable. In this > case the data is going from /raid -> /raid instead of from /usr1 -> /raid, > but it does not seem to help. > > I've also tried using some other utilities than simply "cp" in an attempt > to "fool" the system - I've tried scp, and tar cf - . | (cd /raid;tar xf > -) as well. > > There are no messages in dmesg or /var/log/messages that look at all > related, and there are no messages that are accruing (for example while > attempting a copy). > > Paul > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" --Boundary-02=_PZhoA/ioZ6gJ/mh Content-Type: application/pgp-signature Content-Description: signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQBAohZPBylq0S4AzzwRAnzPAJwK1dhCYWecIEywXxyxRch2+v2E2ACeLW3M /0kneVOgKeTTWYLAQdBlp/I= =xoIh -----END PGP SIGNATURE----- --Boundary-02=_PZhoA/ioZ6gJ/mh--
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