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 Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones New in Fedora 11: Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 70 libraries supprt'd http://fedoraproject.org/wiki/MinGW http://www.annexia.org/fedora_mingw -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
