[Lustre-discuss] collectl

[Andreas Dilger]

On Jul 30, 2008  18:15 -0400, Mark Seger wrote:
> so here's the test I did.  I created 200 files and set acls on all of  
> them.  setxattr changed by 200.  then I did an ls -l on the directory  
> with the files in it and getxattr changed by 1.  when I removed all the  
> files reint changed by 200.  I should quickly point out this was done on  
> a 1.6.4 system as I'm waiting for access to remount the mds on my 1.6.5  
> systems with acls enabled.

Normally the MDS will send the ACL data along with the first "getattr" RPC,
to avoid the overhead of sending a separate RPC for each stat().

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.