Journaling UFS with gjournal.

[Pawel Jakub Dawidek]

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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