On 11/11/2009 11:53 AM, Richard W.M. Jones wrote: > On Wed, Nov 11, 2009 at 10:14:21AM +0000, Richard W.M. Jones wrote: >> echo input | time cpio --quiet -o -H newc > /path/to/fs/output > > Update: I found the -C option that lets me specify the blocksize, and > raising it to something sensible (65536) shows major improvements in > performance for all filesystems. > > echo input | time cpio -C 65536 --quiet -o -H newc > /path/to/fs/output > >> tmpfs 0.77 s x 1.0 >> ext2 1.12 s x 1.5 >> xfs 1.66 s x 2.1 >> ext3 2.58 s x 3.4 >> ext4 5.59 s x 7.3 <---- > > The new times are: > > tmpfs 0.20 s x 1.0 > ext2 0.30 s x 1.5 > xfs 0.41 s x 2.1 > ext3 0.57 s x 2.9 > ext4 0.44 s x 2.2 imho it's still a bug. wouldn't somehow rise the default or make the writes buffered or ... since the current situation is not correct. -- Levente "Si vis pacem para bellum!" -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
