Tim Waugh wrote:
[about reproducing the error]
> Sorry, no. EPP mode in the BIOS. 2.4.0-test1 sources. VFAT
> # rm -f /mnt/zip/x; time cp linux-2.4.0-test1.tar.gz /mnt/zip/x
> under 2.2 took 48 seconds of real time. Under 2.4 it took 18. :-)
> What setting is your BIOS using for your parallel port?
My settings were ECP+EPP:
..]$ time cp ~/Downloads/Tarballs/linux-2.4.0-test1.tar.gz /mnt/zip
0.00user 3.88system 2:08.55elapsed 3%CPU (0avgtext+0avgdata
0inputs+0outputs (111major+18minor)pagefaults 0swaps
Then I placed replaced ECP+EPP by EPP:
..]$ time cp linux-2.4.0-test1.tar.gz /mnt/zip
0.00user 3.55system 0:41.35elapsed 8%CPU (0avgtext+0avgdata
0inputs+0outputs (141major+18minor)pagefaults 0swaps
Thx, it's a big improvement (system still a little slow, but in
comparison with ECP+EPP it's heaven!).
But still, if you're copying the file to your ZIP-drive, and you move
your mouse, is it slower/shockier than during normal operation (without
copying to ZIP)?
And why didn't this occured with 2.2.15 (ECP+EPP)? IIRC my mouse didn't
shock either with 2.2.15 (I repeat, IIRC ;-)
Maybe patching 2.4.0test1 could improve (this isn't a parport-problem,
but system resource allocation, I think) - IF patching the kernel worked
(I'm a really bad patcher :-(
But that's a subject for a linux-ng...
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