On Sun, Oct 4, 2009 at 10:42 PM, Eric Springer <erikina@xxxxxxxxx> wrote: > On Mon, Oct 5, 2009 at 5:05 AM, Adam Williamson <awilliam@xxxxxxxxxx> wrote: >> >> Quick follow-up on this issue: I heard that this part at least has been >> done, and it certainly seems to have done the trick. Delta rebuild >> speeds have increased approx ten-fold here, and are now faster than my >> (pretty quick) download speeds. > > Is it possible to do the rebuilds in parallel? I noticed that only one > of my four cores was used. And that on smolt 63% of people have a > dual-core or greater, so it could lead to massive speed-ups as well. xz is not threaded yet, I did some benchmark on my core i7 systems: http://193.200.113.196/apache2-default/res pbzip2 and pigz are threaded (compare them with bzip2 and gzip in the output to see what kind of speedup is possible). -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
