gentoo $ mkisofs --version mkisofs 2.01a17 (i686-pc-linux-gnu)
gentoo $ time mkisofs distfiles > 1.1 2>/dev/null real 1m17.966s user 0m1.390s sys 0m14.745s
redhat $ mkisofs --version mkisofs 2.0 (i686-pc-linux-gnu)
redhat $ time mkisofs distfiles > 1.1 2>/dev/null real 0m41.720s user 0m1.430s sys 0m12.510s
gentoo $ hdparm -t /dev/hda /dev/hda: Timing buffered disk reads: 52 MB in 3.08 seconds = 16.88 MB/sec
redhat $ hdparm -t /dev/hda /dev/hda: Timing buffered disk reads: 64 MB in 4.10 seconds = 15.61 MB/sec
What reason of gentoo small speed?
You're comparing two different versions of mkisofs, so that could explain something... The "newer" version is taking almost twice as long though and that's odd.
As for your hdparm timings, IMO, they're inconsequential. Well, looks like 20%... If they were within 10%, I wouldn't worry.
What kernel is on each system ?? Maybe the RH kernel is newer or has RH-applied patches to improve disk performance. RH does *not* use the stock Linus kernel as-is. They modify and patch it themselves.
Hall
-- [EMAIL PROTECTED] mailing list
