Gentoo Archives: gentoo-user

From: Michael Mol <mikemol@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Is Btrfs "stable" enough?
Date: Thu, 22 Sep 2011 01:04:49
Message-Id: CA+czFiBbDN0j3LfWehUfU0GpD9fzW-rrqZ9QZt7Be_dASerA0A@mail.gmail.com
In Reply to: Re: [gentoo-user] Is Btrfs "stable" enough? by Adam Carter
1 On Wed, Sep 21, 2011 at 8:04 PM, Adam Carter <adamcarter3@×××××.com> wrote:
2 >>> Ok for me so far, but still seems slower than ext4, and i'm using
3 >>> compression, inode_cache and space_cache.
4 >>
5 >> Does ext4 have compression? I didn't know it did. If it doesn't, then,
6 >> yeah, you're adding some serious overhead and real latency.
7 >
8 > Sorry I wasn't clear. Compression, inode_cache and space_cache are
9 > btrfs mount options. LZO compression on btrfs increases performance in
10 > most benchmarks i've seen. ZLIB is 50/50, some better some worse, but
11 > of course you get a better compression rate.
12
13 Hm. Well, that'll be dependent on the type of data, reads vs writes,
14 seeking, etc. Try turning off compression and see if that helps.
15
16
17 --
18 :wq