[PVFS2-users] syncing in PVFS2

[neillm at mcs.anl.gov]

On Mon, Oct 11, 2004 at 12:56:44PM -0400, Dean Hildebrand wrote:
> Test1: iozone on ext3 file system (on server machine) -> 13MB/s writes
> Test2: iozone on PVFS2 client                         -> 44MB/s writes
> 
> How is it possible for PVFS2 to perform better than the file system in
> which it resides?  It is beating the disk bandwidth.  Something is not
> syncing properly.

Ah, okay -- I recall now.  Prior to pvfs2-0.6.2, we were *not*
explicitly syncing as advertised on data movement.  I had to add a
setinfo option to the flow interface that allowed it to honor the
TroveSyncData option if specified (enabled by default).  So in the
past the TroveSyncMode was in theory for both meta and data, but it
really only affected metadata.

It might be worth your time to re-sync with the tree at some point if
possible.  I can't keep past bugs or behaviours in mind for very long.


Best regards,
-Neill.