I had been using an old 2.6.22 kernel on my machine, and I often backup
one partition of my main hard drive to a partition on a second hard
drive. The main hard drive is sata 640 gigs, and the second is a pata
320 gig. copying this partition from one drive to the other with dd
takes about 3 minutes and 30 seconds. When I installed kernel 2.6.30,
and 2.6.31, the time took 9 minutes and 20 seconds. I decided to go to
the trouble of compiling all the kernels between, and kernels
2.6.22-2.6.28 all do the operation in about 3 minutes and 30 seconds.
2.6.29- newer all take about 9 minutes and 20 seconds. The partition is
16 gigs. each drive seems to be as fast as before otherwise, it's just
much slower copying from one drive to another, which I do very often.
This is an nforce 3 based motherboard, amd southbridge, i think, with 4
gigs of ram, athlon 64x2. 32 bit kernel. has anyone heard of this problem?
I currently have 3 hard drives hooked up.
a 200 gig on a promise controller,
a 320 gig on the amd pata?
a 640 sata on the nv i think.
The motherboard is a Asrock-AM2NF3-VSTA
copying this partition with dd or cat or schily's dd between any of these 3
different hard drives takes different times depending on the speed of
the drive with
kernels 2.6.22-2.6.28, but takes about 9 minutes and 30 seconds on any
of the drives
with the kernels 2.6.29 and after.
Please cc me with any followups or anything. thanks.