Date: Fri, 24 Jun 2011 08:59:02 +0200 From: Attila Nagy <bra@fsn.hu> To: Wiktor Niesiobedzki <bsd@vink.pl> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS L2ARC hit ratio Message-ID: <4E0435B6.30004@fsn.hu> In-Reply-To: <BANLkTinyveD7D=PYv3eqdxZb=KneKxg9Zg@mail.gmail.com> References: <BANLkTinyveD7D=PYv3eqdxZb=KneKxg9Zg@mail.gmail.com>
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On 06/21/11 21:59, Wiktor Niesiobedzki wrote: > I've recently migrated my 8.2 box to recent stable: > FreeBSD kadlubek.vink.pl 8.2-STABLE FreeBSD 8.2-STABLE #22: Tue Jun 7 > 03:43:29 CEST 2011 root@kadlubek:/usr/obj/usr/src/sys/KADLUB i386 > > And upgraded my ZFS/ZPOOL to newest versions. Though through my > monitoring I've noticed some declination in L2ARC hit ratio (server is > not busy, so it doesn't look that suspicious). I've made some tests > today and I guess, that there might be some problem: Likely because vfs.zfs.l2arc_noprefetch is now 1.
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