On Sat, 3 Jan 2009, Matt Domsch wrote: > On Sun, Jan 04, 2009 at 03:02:55AM +0000, Kostas Georgiou wrote: > > On Sat, Jan 03, 2009 at 06:32:38PM -0600, Matt Domsch wrote: > > > > > What ext3 journaling options are enabled (e.g. what does 'mount' say)? > > > If it's data=ordered (the default), that's OK. If it's data=journal, > > > then all the data gets written twice (first to the journal, then the > > > journal to the disk), which is really really slow, and the size of the > > > journal would really make a difference too. > > > > For an NFS server (assuming that you aren't exporting as async) > > data=journal can give you better performance than anything else > > actually. The NFS howto has a brief note in the performance section > > about this. > > Yes, if the slowness is seen by applications on the client side of the > NFS server, data=journal on the NFS server can help. > > Mike, your tests were all on the local file system, not across an NFS > connection, right? > Correct, though (obviously) we're seeing the slownees remotely as well. -Mike _______________________________________________ Fedora-infrastructure-list mailing list Fedora-infrastructure-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-infrastructure-list
