On Thu, Apr 23, 2009 at 05:19:34PM +0200, Thomas Pfaff wrote: > On Thu, 23 Apr 2009 14:13:18 +0200 > Otto Moerbeek <o...@drijf.net> wrote: > > > On Thu, Apr 23, 2009 at 02:02:06PM +0200, Tobias Ulmer wrote: > > > > > On Thu, Apr 23, 2009 at 03:27:42PM +0200, Thomas Pfaff wrote: > > > > I'm getting horrible disk performance compared to Ubuntu on my system. > > > > > > > > I noticed this when extracting ports.tar.gz on the same machine with > > > > different OSs (this is something I did a while back to check for > > > > a possible hardware problem when OpenBSD crashed upon extracting > > > > ports.tar.gz). > > > > > > > > OpenBSD (ffs): > > > > > > > > $ time tar -zxf ports.tar.gz 0m59.90s real 0m1.00s user > > > > 0m6.95s system > > > > > > > > Ubuntu (ext3): > > > > > > > > $ time tar -zxf ports.tar.gz > > > > real 0m18.440s > > > > user 0m1.212s > > > > sys 0m2.596s > > > > > > > > 1 minute on OpenBSD and 18.5 seconds on Ubuntu, doing the exact same > > > > thing on the exact same hardware! Why the huge difference? Both are > > > > default installations, except softdep is turned on. > > > > > > > > Thanks for any pointers or advice. > > > > > > > Try: time tar -zxf ports.tar.gz && sync > > > > And include the output of mount and show the place where you are untarring. > > > > $ mount > /dev/wd0a on / type ffs (local, softdep) > /dev/wd0k on /home type ffs (local, nodev, nosuid, softdep) > fs:/pub on /pub type nfs (nodev, noexec, nosuid, v3, udp, timeo=100) > > $ pwd > /home/tpfaff > > $ time tar -zxf ports.tar.gz && sync # (... && sync) ~same result > 1m2.66s real 0m1.09s user 0m6.85s system > $ time rm -rf ports > 0m15.20s real 0m0.15s user 0m1.42s system
and on linux? [ remembered the () thing the very second i hit 'y' ;). I figured you're clever enough... ]
