[PVFS-users] version 1.6.2 slower than 1.60?

Jeremy Enos jenos@ncsa.uiuc.edu
Tue, 13 Jan 2004 01:11:17 -0600


Hi folks-
I did crude benchmark comparisons using dd to write to a filesystem mounted 
via the pvfsd kernel module.  I had just moved from version 1.6.0 to 1.6.2, 
and the performance dropped over 90%.  Could I be doing something wrong?
Stat of test:
# of iod: 16
# of clients: 64
block size: 65536
count: 2000

I did concurrent writes/reads and timed from start to finish, and then 
calculate an aggregate dtr.  I know it's a crude test, but it's a 
repeatable difference between 1.6.0 and 1.6.2.
Let me know if you have any suggestions.

	Jeremy