<div class="gmail_quote">On Mon, Mar 23, 2009 at 10:55 AM, Gennadiy Nerubayev <span dir="ltr"><<a href="mailto:parakie@gmail.com">parakie@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi all,<br><br>I'm using 2.0.0rc4 on a pair of infiniband connected servers. Both servers are running 2.6.28.7, and are using ext4 on a local raid set as the storage for Gluster. The speeds that I get writing to the aforementioned ext4 mount, depending on benchmark and method, vary around 400MB/s (with dd) to 550MB/s+ (with iozone, bonnie, and dd directio). Next, I used the Gluster server and client on both servers, with ib-verbs and replicate (see attached configuration files). The best speeds that I get when writing to the Gluster mount with this setup is about 150MB/s, going up to about 200MB/s when doing simultaneous writes from both nodes. I tried a couple of configuration tweaks such as writeback, but they don't seem to be having much effect.<br>
<br>Is there something I can do to bring the performance closer to the native disk speed, or are there some inherent limitations somewhere that I should be aware of?</blockquote><div><br>Woops, was making some interim changes to the server names and forgot to change that in the saved config file for the client. Reattached, sorry for the self reply.<br>
<br>-Gennadiy<br></div></div>