-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 28-9-2010 15:46, Andriy Gapon wrote: > on 28/09/2010 16:25 Willem Jan Withagen said the following: >> Well advises seem to vary, and the latest I understood was that >> 8.1-stable did not need any tuning. (The other system with a much >> older kernel is tuned as to what most here are suggesting) And I >> was shure led to believe that even since 8.0 panics were no longer >> among us...... > > Well, now you have demonstrated yourself that it is not always so.
I thought I should share the knowledge. ;) Which is not a bad thing ofr those (starting to) use ZFS. I do not read commits, but do read a lot of FreeBSD groups. And for me there is still a shroud of black art over ZFS. Just glad that my main fileserver doesn't crash. (knock on wood). >>> vm.kmem_size vfs.zfs.arc_max >> >> real memory = 12889096192 (12292 MB) avail memory = 12408684544 >> (11833 MB) >> >> So that prompts vm.kmem_size=18G. >> >> Form the other post: >>> As to arc_max/arc_min, set them based your needs according to >>> general ZFS recommendations. >> >> I'm seriously at a loss what general recommendations would be. > > Have you asked Mr. Google? :) - > http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide > > Search for "Memory and Dynamic Reconfiguration Recommendation" > - > http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide#Limiting_the_ARC_Cache > > Short version - decide how much memory you need for everything else > but ZFS ARC. > If autotuned value suits you, then you don't need to change > anything. I do have (read) this document, but still that doesn't really give you guidelines for tuning on FreeBSD. It is a fileserver without any serious other apps. I was using "auto-tuned", and that crashed my box. That is what started this whole thread. - --WjW -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) iQEcBAEBAgAGBQJMofVwAAoJEP4k4K6R6rBhFaUH/3wahrGWO71+xBhHi/ayNoaf DfbOWMD262XfualJudPRgoji7xb9lGaRmd4emv7QBcDjqzmcsiyIeXskT5IYKj7P DvJDULIH66iKQrRZeIBouMXMhLfiLjjT85Lj1hE8fuGg8NAOv97dnUwvVIwC0/Ai yzeeEHYivCYbRmzBhISlAWjdpSXk7xVs6gZnaLUUp953+Uv/8KmNLeG+laoWn+Hn wdKHUG3kR0g/XwJIMc5dZzYvs2kdDPh47uLythoYGC0yaLCwtxLHqEGIPtb/Gypy nIIWxOGtueJo2HjpS0+HlX/pTRW8tfYzXTzKgFKDd90t9fDt2p18BPSexuJSLVc= =hSAg -----END PGP SIGNATURE----- _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
