From: "Sébastien Wacquiez" <sw@enix.org>
To: linux-btrfs@vger.kernel.org
Subject: Re: Using SSDs for caching?
Date: Fri, 19 Jun 2009 08:57:12 +0200 [thread overview]
Message-ID: <4A3B36C8.2070500@enix.org> (raw)
In-Reply-To: <20090618155530.GA16819@mother.pipebreaker.pl>
Tomasz Torcz a =C3=A9crit :
> Linux already has second-level=C2=B9 cache layer, it called FS-Cach=
e. For now,
> the sole user is NFS. btrfs could take advantage of FS-Cache also.
>
> =C2=B9 first-level is page cache in RAM
> =20
=46S-Cache is a good thing to speedup your network filesystem, but to b=
e=20
efficient localy, IMHO, the second-level cache shoud be at the block le=
vel.
So it should go directly in btrfs or in something like the device mappe=
r ...
S=C3=A9bastien Wacquiez
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prev parent reply other threads:[~2009-06-19 6:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-18 13:56 Using SDs for caching? Roy Sigurd Karlsbakk
2009-06-18 13:58 ` Using SSDs " Roy Sigurd Karlsbakk
2009-06-18 15:55 ` Tomasz Torcz
2009-06-18 17:25 ` Roy Sigurd Karlsbakk
2009-06-19 2:36 ` hu.taoo
2009-06-19 6:57 ` Sébastien Wacquiez [this message]
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