A quick survey: What do you have your performance.cache-size set to? We have the luxury of decently specced workstations (24GB RAM minimum spec, up to 128GB for some boxs), and set our performance.cache-size to 2048MB (2GB) for some pleasant results with our large-ish files that we throw about to fuse.glusterfs clients. VMs and lower specced machines mount up via NFS instead, so they don't take the RAM hit. -- Dan Mons R&D SysAdmin Unbreaker of broken things Cutting Edge http://cuttingedge.com.au