Date: Fri, 18 Dec 2009 13:33:56 +0300 From: "Alexander Zagrebin" <alexz@visp.ru> To: "'Stefan Esser'" <se@FreeBSD.org> Cc: freebsd-current@freebsd.org Subject: RE: ZFS and UFS on the same box. Cache memory allocation issue. Message-ID: <CB674CF3F7F349D39EE24D05B4F8D3DF@vosz.local> In-Reply-To: <4B2B52FD.7070206@FreeBSD.org> References: <398F182D4FC14D43A1CFD89C4D69817C@vosz.local> <4B2B52FD.7070206@FreeBSD.org>
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> > As result UFS returns memory to "free" pool and ZFS can > allocate it for ARC. > > It significantly increases ZFS performance. > > > > Is there an another workaround? > > do you know about the following ZFS loader tunables: > > vfs.zfs.arc_min="400M" > vfs.zfs.arc_max="500M" > > These should be added to /boot/loader.conf (and they can of course be > adjusted to make your system behave well ...) Yes, I do. vfs.zfs.arc_min would be used at this situation, but it seems that setting this sysctl doesn't help. -- Alexander Zagrebin
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