Anand Avati wrote: >>> 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. > For these tests, I used a 16k blocksize and wrote 1GB -- Matt
