From: Eric Sandeen <sandeen@redhat.com>
To: Andreas Dilger <adilger@sun.com>
Cc: Theodore Tso <tytso@mit.edu>,
ext4 development <linux-ext4@vger.kernel.org>
Subject: Re: how to scale root-reserved space going forward...
Date: Mon, 02 Mar 2009 10:26:21 -0600 [thread overview]
Message-ID: <49AC08AD.7050602@redhat.com> (raw)
In-Reply-To: <20090302085632.GM3199@webber.adilger.int>
Andreas Dilger wrote:
> I suspect that at a certain filesystem size, there isn't much benefit
> in having more reserved space. If we keep 50GB of reserved space then
> this is likely to contain a decent amount of 1MB free chunks, which is
> what we really care about.
>
> Cheers, Andreas
As long as we don't care much about inode<->block locality, that is
probably ok...
I got one off-list reply from someone who was depending on the 5% for
administration reasons, but even if we change the default I assume we'll
leave the tunable in place for people who really do want 5% for
"root-reserved" over "allocator safety buffer" reasons.
-Eric
prev parent reply other threads:[~2009-03-02 16:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-01 22:22 how to scale root-reserved space going forward Eric Sandeen
2009-03-02 2:47 ` Theodore Tso
2009-03-02 7:17 ` Ron Johnson
2009-03-02 8:56 ` Andreas Dilger
2009-03-02 16:26 ` Eric Sandeen [this message]
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