Very Computer

1.0.0         40.2 kB/s
1.1.0         41.5 kB/s
1.1.73        22.0 kb/s

from my single speed Mitsumi FX001.

For comparison:

MSDOS 6.2    125.0 kB/s

Any ideas on that? How fast are the other brands, i. e. sony?

How to change this?

regards,
--
Karsten Kreher

tel +49.(0)6151-719999
fax +49.(0)6151-719970

: 1.0.0         40.2 kB/s
: 1.1.0         41.5 kB/s
: 1.1.73        22.0 kb/s

: from my single speed Mitsumi FX001.

: MSDOS 6.2    125.0 kB/s

further investigation gives up to 90 kB/s under load?!?!?!?!?
(doing gzip -9r /tmp/junk/* on the other console)

how come? Why does cdrom i/o vary with cpu load by a factor of (minus!) four?
--
Karsten Kreher

tel +49.(0)6151-719999
fax +49.(0)6151-719970

: 12 megs in just over 100 seconds; seems about right.

just compared it... as you see, I get 21.5 kB/sec (mind my bs=1.2 MB!).
Something seems to be majorly wrong.

Whereas a cp improves in performance when making the system busier by other
processes (see my other post), dd does not:
        20.1 kB/sec for one gzip -9 running,
        14.5 kB/sec for two gzip -9 running.

I'm baffled.

--
Karsten Kreher

tel +49.(0)6151-719999
fax +49.(0)6151-719970

Quote:Karsten Kreher writes:
> copying a single large file I get
> 1.1.73        22.0 kb/s
> from my single speed Mitsumi FX001.

    froggy% time dd if=/dev/cdrom of=/dev/null bs=12000k count=1
    1+0 records in
    1+0 records out
    0.00u 5.60s 1:40.93 5.5%

12 megs in just over 100 seconds; seems about right.
This is on Linux 1.1.76.

Cheers,
Jon.
--
// Jon Thackray, Cambridge, England.      ><>

I heard that. ;-)
Anyway, I also had no problem with the Mitsumi (before I lent
it out, Jon!).

Perhaps there's more than one controller around. Which
one are you using?

--
Christopher J. Wells
............................................................


. OS   :    Linux / Warp Of course!                        .
. Tel  :    +44 1342 714115 (home)                         .
.           +44 1883 626682 (work)                         .
............................................................

: from my single speed Mitsumi FX001.

Has anyone ever experienced any file corruption from the LU0002S drive??

Seems that when I copy a file over 1meg in size the file will corrupt.
If I repeatedly untar the file deleting the last file to be created on
disk I can eventually get all files from the tar file, but this is a pain
in the ass.. This occured under 1.09 and above... I use the following
tar command   tar zxvkf filename.tar    The k option doesn't allow
overwriting of previous files...

                                                Colten Edwards