Matt,<br> replies inline.<br><br><div class="gmail_quote">On Sun, Dec 28, 2008 at 4:01 AM, Matt Lawrence <span dir="ltr"><<a href="mailto:matt.lawrence@tamu.edu">matt.lawrence@tamu.edu</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;">
I have maintenance windows on Wednesday & Thursday to make changes to<br>
the throughput cluster here and I could use some advice.<br>
<br>
There are 130 system, 126 of them are compute nodes, connected via Gb<br>
ethernet with the head node and fileserver node connected via 10Gb<br>
ethernet. At the moment, my configuration from last summer, which was<br>
done in a hurry, is running really, really slow.<br>
<br>
My hope is to upgrade to 1.4.0, but I'll settle for a release candidate<br>
if I have to. Here is the rough plan for how I'm going to configure it.<br>
<br>
Server:<br>
XFS filesystem -->> io-thread -->> tcp</blockquote><div>XFS filesystem -->> io-thread -->> write-behind -->> tcp <br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
<br>
<br>
Client:<br>
brick -->> readahead -->> writebehind<br>
</blockquote><div>brick -->> io-thread -->> write-behind -->> io-cache -->> readahead <br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
Should I be considering readahead/writebehind on the server end?<br>
How about threads on the client?<br>
Any other translators I should consider?<br>
<br>
I'm hoping to spend much of Thursday doing performance testing. What<br>
benchmarks do y'all recommend? I was planning on trying iozone, but<br>
could easily be convinced to go with something else. The plan is to<br>
script it to run automatically with a number of different settings for<br>
readahead & writebehind. Any particular words of wisdom?<br>
</blockquote><div><br><br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br>
Thanks for the help!<br>
<br>
-- Matt<br>
<br>
_______________________________________________<br>
Gluster-users mailing list<br>
<a href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a><br>
<a href="http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users" target="_blank">http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users</a><br>
</blockquote></div><br><br clear="all"><br>-- <br>gowda<br>