> > > No, it is on a 1.8 TB stripe set > > Stripe ? It's RAID0 ?
YES, it is > > no, I Don't; it is: > > /storage *(rw,no_subtree_check,sync,no_root_squash) > > Could you please try at the occasion ? > > Just to see if it makes a difference... > > Normaly, async boost the nfs perfs ! seems to be exactly the same.... I see somehing really strange (according to me...) I did the following test, having a file of (file.tar.gz.1) 457559901 bytes; I copied it twice (file.tar.gz.2 file.tar.gz.3). Then I try to copy these 3 files (total of 1372679703 bytes) via nfs to the NAS date && cp file.tar.gz.* /mnt/storage/ && date Fri Jul 31 09:46:41 CEST 2009 Fri Jul 31 09:49:36 CEST 2009 So I am getting the 3 files copied in 2 min and 55 sec, 7,48 MBytes/s: sounds good ! But if I tar the 3 files, and then I copy the resulting file: date && cp speedtest.tar /mnt/storage/ && date Fri Jul 31 13:37:35 CEST 2009 Fri Jul 31 13:43:52 CEST 2009 so it takes 6 min and 18 secs, 3.5 MBytes/sec rate: less good... If I copy a greater file : (13576740864 about 13.2 GB) start: 2009-07-31 07:53:47 end: 2009-07-31 09:11:58 so it takes 2 hours, 18 min and 11 secs, 1.56 MBytes/sec rate: very bad. So it seems the greater is the file, the lower is the rate ! Andrea -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
