>> WRF is not the only thing running on the cluster. >> >> Direct I/O of 1GB takes 2.7 seconds. NFS takes 17 seconds. Gluster takes >> 100 seconds. >> > > Pulled those translators out and it reduced the glusterfs time to 77 > seconds. A significant improvement, but still far behind NFS. Any other > suggestions? Do you know what block size the operations are performed? Is there a way to tune (increase) it? Fuse has a high overhead for small block sizes (< 4KB). Alternately, you can try to LD_PRELOAD the booster module to your application before starting it which bypasses fuse for read/write calls. avati
