| To: | Bruce Guenter <lists-linux-xfs@xxxxxxxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: Speeding up XFS |
| From: | Andi Kleen <ak@xxxxxx> |
| Date: | Sat, 01 May 2004 16:44:18 +0200 |
| Cc: | linux-xfs@xxxxxxxxxxx |
| In-reply-to: | <20040426165155.GA19148@xxxxx> (Bruce Guenter's message of "Mon, 26 Apr 2004 10:51:55 -0600") |
| References: | <20040426165155.GA19148@xxxxx> |
| Sender: | linux-xfs-bounce@xxxxxxxxxxx |
| User-agent: | Gnus/5.110002 (No Gnus v0.2) Emacs/21.2 (gnu/linux) |
Bruce Guenter <lists-linux-xfs@xxxxxxxxxxxxxxxxxxxxxxxx> writes: > > So far, XFS with an external journal has by far the best delivery rate. > However, as the filesystem fills and delivery concurrency increases, the > time required to list, read and delete the delivered files slows down to > unacceptable levels. Is there anything I can do, settings to modify, > patches to try, to improve this behavior? Did you try it with elevator=deadline ? Maybe you are just seeing elevator starvation. The default anticipatory elevator adds artificial latencies for better throughput. -Andi |
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