[Gluster-users] GlusterFS 3.4 MD-Cache & PHP

Andreas Kirbach
Thu, 22 Aug 2013 12:08:52 -0000

Hi everyone,

As the MD-Cache seems to have gotten a major overhaul in 3.4, are there
already some experiences as to how this effects a "small files" use
case, eg. serving PHP files?

To my understanding, PHP makes a lot of open() and fstat()/lstat() calls
that cause performance issues when using NFS:
http://php.webtutor.pl/en/2011/06/02/running-php-on-nfs-huge-performance-problems-and-one-simple-solution/
http://marc.info/?l=php-internals&m=136121922704167

Does using the native client with fopen-keep-cache improve the
performance compared to NFS?

Kind regards,
Andreas