<div style="" class="gE iv gt"><br></div><div class="gE ib gt" style="display: none;"><table class="cf gJ" cellpadding="0"><tbody><tr><td class="gF gK"><table class="cf gJ" cellpadding="0"><tbody><tr class="UszGxc"><td class="g7">
<span class="lHQn1d"><img class=" f g8 " src="images/cleardot.gif" alt=""></span></td><td class="gG"><span class="gI">from</span></td><td colspan="2" class="gL"><span class="gI"><span class="ik"><img class="c6 QrVm3d" id="upi" name="upi" src="images/cleardot.gif" alt="" height="16px" width="16px"></span><span class="gD" style="color: rgb(0, 104, 28);">Alan A</span> <span class="go"><<a href="mailto:alan.zg@gmail.com">alan.zg@gmail.com</a>></span></span></td>
</tr><tr><td colspan="2" class="gG"><span class="gI">to</span></td><td colspan="2" class="gL"><span class="gI"><span class="ik"><img class="de QrVm3d" id="upi" name="upi" src="images/cleardot.gif" alt="" height="16px" width="16px"></span>General Red Hat Linux discussion list <<a href="mailto:redhat-list@redhat.com">redhat-list@redhat.com</a>><br>
</span></td></tr><tr><td colspan="2" class="gG"><span class="gI">date</span></td><td colspan="2" class="gL"><span class="gI"><span class="ik"><img src="images/cleardot.gif" height="16px" width="16px"></span>Thu, Feb 25, 2010 at 7:56 PM</span></td>
</tr><tr><td colspan="2" class="gG"><span class="gI">subject</span></td><td colspan="2" class="gL"><span class="gI"><span class="ik"><img src="images/cleardot.gif" height="16px" width="16px"></span>GFS and I/O</span></td>
</tr><tr><td colspan="2" class="gG"><span class="gI">mailed-by</span></td><td colspan="2" class="gL"><span class="gI"><span class="ik"><img src="images/cleardot.gif" height="16px" width="16px"></span><a href="http://gmail.com">gmail.com</a></span></td>
</tr><tr><td colspan="4"><span class="gI"></span></td></tr></tbody></table></td><td class="gH"><div class="gK UszGxc"><span class="iD">hide details</span> <span id=":11x" class="g3" title="Thu, Feb 25, 2010 at 7:56 PM" alt="Thu, Feb 25, 2010 at 7:56 PM">7:56 PM (39 minutes ago)</span> <span></span></div>
</td><td class="gH cY8xve"></td></tr></tbody></table></div>I
made /var/www gfs shared so I could share cgi-bin directory among
cluster nodes. Yesterday we tested this out and failed. Users
complained about slow page execution and I noticed with 'lsof
/var/www/cgi-bin' command that many executable files are listing as
open files. This brings me to a question - Does GFS treat executable
files same as files open for read / write? <br>
<br>Unrelated to previous question, what GFS parameters can I tune with
'gfs_tool settune /volumename' to get better I/O? I am dealing with
single threaded application that has a lot of I/O, mostly opens files
for writing.<br clear="all"><br>-- <br>Alan A.<br>