Date: Tue, 30 May 2006 14:47:57 -0400 From: Kris Kennaway <kris@obsecurity.org> To: David Gilbert <dgilbert@dclg.ca> Cc: freebsd-hackers@freebsd.org Subject: Re: gstat going negative? Message-ID: <20060530184757.GA28326@xor.obsecurity.org> In-Reply-To: <17532.24323.851927.992309@canoe.dclg.ca> References: <17532.24323.851927.992309@canoe.dclg.ca>
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--FL5UXtIhxfXey3p5 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, May 30, 2006 at 11:04:35AM -0400, David Gilbert wrote: > I've large array that winds up providing 1TB of disk (according to df > -h :) to a bunch of nfs users. On the array machine, I'm using > gmirror and gconcat to build the array and right now I'm running dump > on the array. >=20 > I've got a gstat running and one curious thing is that gstat keeps > reporting 2^32-1 as the value for l(Q) (obviously, spelt out in > numbers) ... as if l(Q) is actually coming back as -1. >=20 > Odd? SMP race, you can increase the value of kern.geom.collectstats to make the stats collection atomic at the expense of some (probably negligible) performance. Kris --FL5UXtIhxfXey3p5 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (FreeBSD) iD8DBQFEfJNcWry0BWjoQKURAlQIAKCgY3nKEZI3ohA9DZ1v90fCoijNEwCgkjkJ tRNNVJTWh0S82VA/YPed98w= =V9xQ -----END PGP SIGNATURE----- --FL5UXtIhxfXey3p5--
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