To all,
If there is any interest in running non-linux clients on PVFS, we
have a preliminary release of pvfs2fuse which is a FUSE
implementation of a PVFS filesystem. It allows any OS that supports
FUSE to mount a PVFS filesystem. Presently, this includes Linux,
FreeBSD, and MacOSX.
The code is a set of patches to pvfs-2.6.3 and is available at http://
snsl.engr.uconn.edu/downloads/pvfs2fuse.html.
I've done limited testing on Linux 2.6.9 and MacOSX 10.4.9 but it
should work on other versions and FreeBSD as well.
After doing some testing with a 6-node Linux cluster, pvfs2fuse on
Linux performance is comparable to the PVFS built-in client. Iozone
shows the PVFS client topping out at ~100 MB/s and pvfs2fuse topping
out at ~75 MBs for large files but for small files and small record
sizes pvfs2fuse does about 30% better. We have yet to do any
analysis of pvfs2fuse performance to see where the bottlenecks are.
John Chandy
Dept. of Electrical and Computer Engineering
University of Connecticut
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