[Pvfs2-users] to upgrade or not

[belcampo]

Hi,

Have running 1.51 with kernel 2.6.17-CITI_NFS4_ALL-pnfs-1 which performs 
VERY nice as general use parallel filesystem for large files.

Did a upgrade to 2.81 with same kernel, but performance drops by about 
50% reading as well as writing.

Upgraded kernel to 2.6.26 but performance about the same 50% performance 
drop.

Any ideas how to get at least the same performance ?

Actual figures
1.51 read 48129445 write 44693836 bytes/sec
2.81 read 22195609 write 23011354 bytes/sec

It's a 3 server via gigabit ethernet configuration. Client is an 
non-participating client via nfs.

Henk Schoneveld