On 7/23/2010 1:40 PM, Gordan Bobic wrote: > Fred Wittekind wrote: >> I do have noatime, need to add nodiratime. > > noatime is a superset of nodiratime. Thanks, that's good to know. > >> There are PHP session files >> on the gfs2 volume. There used to be Zend Cache file on it, but I moved >> those to tmpfs. There is one other set of cache files that where put in >> a bad directory, so they are hard to move to tmpfs without changing the >> client's website code (although I may do this anyways). > > Indeed you may, that sounds like a good place to start looking for > your performance problems. I will try this. > >> I had considered moving the PHP session files to a memcache server, but >> then I observed very long load times on static website content >> (images). Since images don't involve the session files, I had decided >> that it looked like there was more of a problem than the session >> files. Although, could lock issues with the session files effect load >> times of >> files in a completely different area of the directory tree? > > Session files will be accessed for ever page hit, will they not? No. PHP session files are only hit when accessing a PHP page that does a session_start call. So, if for instance you load a jpg file (that is not served by a php script), there is no session file access. > > Gordan > > -- > Linux-cluster mailing list > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster > -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
