Date: Sat, 7 Jun 2008 08:05:21 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Ivan Voras <ivoras@freebsd.org> Cc: freebsd-hackers@freebsd.org Subject: Re: Is there any way to increase the KVM? Message-ID: <20080607060521.GB3462@garage.freebsd.pl> In-Reply-To: <g28rhe$32m$1@ger.gmane.org> References: <6a7033710805302252v43a7b240x66ca3f5e3dd5fda4@mail.gmail.com> <20080603135308.GC3434@garage.freebsd.pl> <6a7033710806032317g4dbe8845h26a1196016b9c440@mail.gmail.com> <86zlq140x0.fsf@ds4.des.no> <6a7033710806041053g4a5c2fdftd7202b708bff363c@mail.gmail.com> <20080605062728.GA4278@garage.freebsd.pl> <g28rhe$32m$1@ger.gmane.org>
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--QTprm0S8XgL7H0Dt Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jun 05, 2008 at 04:00:13PM +0200, Ivan Voras wrote: > Pawel Jakub Dawidek wrote: >=20 > > If we're comparing who has bigger... :) > >=20 > > beast:root:~# zpool list > > NAME SIZE USED AVAIL CAP HEALTH ALTROOT > > tank 732G 604G 128G 82% ONLINE - > >=20 > > but: > >=20 > > beast:root:~# zfs list | wc -l > > 1932 > >=20 > > No panics. > >=20 > > PS. I'm quite sure the ZFS version I've in perforce will fix most if not > > all 'kmem_map too small' panics. It's not yet committed, but I do want > > to MFC it into RELENG_7. >=20 > At the risk of sounding repetitive, can you try a simple test on your > ZFS pools, to see if you can panic the kernel? Do this: >=20 > * install blogbench and bonnie++ from ports/benchmarks > * run: > blogbench -c 100 -d . -i 30 -r 50 -W 10 -w 10 > bonnie++ -d . -s 16G -n 80 > in parallel, until completion or crash. It shouldn't take too long to > complete the above benchmarks, so you probably won't invest too much > time in it even if it doesn't crash. Both completed successfully (i386, 1GB of RAM, dual core CPU). Can you now go and revert all the FUD you spread? You probably need to invest much more time than that. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --QTprm0S8XgL7H0Dt Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFISiUhForvXbEpPzQRAguXAJ410GFjyT9PZwUMdaVBuzTcaJD41gCeMQ67 VwOuOfP4vUHzVLqFpK+GfDU= =87CL -----END PGP SIGNATURE----- --QTprm0S8XgL7H0Dt--
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