Date: Sun, 9 Sep 2007 09:54:42 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Peter Schuller <peter.schuller@infidyne.com> Cc: freebsd-current@freebsd.org Subject: Re: Swapping on ZFS - stability issue Message-ID: <20070909075442.GB2341@garage.freebsd.pl> In-Reply-To: <20070908170810.GA90578@hyperion.scode.org> References: <200709081717.05006.peter.schuller@infidyne.com> <20070908170810.GA90578@hyperion.scode.org>
next in thread | previous in thread | raw e-mail | index | archive | help
--WYTEVAkct0FjGQmd Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Sep 08, 2007 at 07:08:10PM +0200, Peter Schuller wrote: > > I'll see if I can confirm behavior on a more recent CURRENT. The above = was on=20 > > CURRENT:s from 1-2 months ago in both cases. >=20 > Confirmed on CURRENT cvsup:ed today (2007-09-08). However, the speed > at which swap was filling was much faster - on par with swap on > non-ZFS. But the machine still effectively froze, save the > console/ping, after a few seconds. >=20 > Also, I forgot to say this is all on amd64 machines. This is a known issue also in OpenSolaris. ZFS needs to allocate memory to send I/O request, and when there is no memory, it can't allocate it thus can't swap a process out and free it. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --WYTEVAkct0FjGQmd Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFG46bCForvXbEpPzQRArw3AJwNW4IDZasvMoFpime3i/twa0yH7wCg7sHO 1xR8gnDVZluYTSxMDPy1JuI= =UAGK -----END PGP SIGNATURE----- --WYTEVAkct0FjGQmd--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20070909075442.GB2341>