On Tue, Jun 20, 2006 at 07:33:39PM +0200, Ulrich Spoerlein wrote: +> Pawel Jakub Dawidek wrote: +> > Reading. grep -r on two src/ directories in parallel: +> > UFS: 84s +> > UFS+SU: 138s +> > gjournal(1): 102s +> > gjournal(2): 89s +> > +> > As you can see, even on one disk, untaring eight src.tgz is two times +> > faster than UFS+SU. I've no idea why gjournal is faster in reading. +> +> The UFS+SU score doesn't seem right. Why do SU have a negative impact on +> read performance? Is it solely because of the atime updates? As I said, I've not idea. You may simply ignore my benchmarks and try them on your own:) -- Pawel Jakub Dawidek http://www.wheel.pl pjd_at_FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am!
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