Date: Fri, 21 Dec 2018 11:38:55 +0100 From: Ben RUBSON <ben.rubson@gmail.com> To: freebsd-fs@freebsd.org Subject: Re: [ZFS] Metadata Allocation Classes Message-ID: <F323B26A-0D7D-4686-BE0C-35BC6A50D0F8@gmail.com> In-Reply-To: <82E338C0-09E3-4648-B49B-C028A03B71D7@gmail.com> References: <82E338C0-09E3-4648-B49B-C028A03B71D7@gmail.com>
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> On 22 Nov 2018, Ben RUBSON wrote: >=20 > Hi, >=20 > Intel has pushed the "Metadata Allocation Classes" feature to ZFS on = Linux. > This allows to store metadata on a so called "special" VDEV, made of = SSD for instance. >=20 > This looks really promising. > I wrote a patch 2 years ago which pins metadata in L2ARC, at eviction = time. > This really helps with some specific workloads. > But "Metadata Allocation Classes" should be one step further in terms = of performance. >=20 > Simple question, do you plan to backport this feature to FreeBSD ? > Or do you first wait for it to reach Illumos (does not seem to be = there yet) ? >=20 > ZoL discussion : https://github.com/zfsonlinux/zfs/issues/3779 > ZoL PR : https://github.com/zfsonlinux/zfs/pull/5182 I answer to myself, well "The future of ZFS in FreeBSD" topic in this = list does :-) Ben
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