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user124
Tux's lil' helper
Joined: 02 May 2002
Posts: 86
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 Posted: Tue May 07, 2002 7:30 pm Post subject: there still is a prob with ide-scsi and dma |
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hi,
i've searched the forum and did a
| Code: | | mknod -m 660 /dev/hdd b 22 64 |
to gain access to my ide-scsi-cdr via hdparm
the results:
| Code: | campus root # hdparm /dev/hdd
/dev/hdd:
HDIO_GET_MULTCOUNT failed: Input/output error
I/O support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
HDIO_GET_NOWERR failed: Input/output error
readonly = 0 (off)
BLKRAGET failed: Input/output error
HDIO_GETGEO failed: Invalid argument
busstate = 1 (on) |
so dma should be ok for this device.
but: ripping a cd is really pain for my compi (athlon1200)
gkrellm shows approx. 80% systemload pus 20% user - speed stucks at 12x (it should reach nearly 30x)
on the other side burning a cd at 24x is no problem - nearly no additional load - the same with copying data from the cd - good speed and no load.
whats the problem with my box?
user124 |
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user124
Tux's lil' helper
Joined: 02 May 2002
Posts: 86
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| Posted: Thu May 09, 2002 9:43 am Post subject: |
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Coogee
Apprentice
Joined: 23 Apr 2002
Posts: 184
Location: E.U.
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| Posted: Thu May 09, 2002 10:21 am Post subject: |
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12x = pain???
What ripping program do you use? (Cdparanoia is slower than cdda2wav but more accurate)
What maximum reading speed does your cd-rom have? (24x, 48x etc.)
These HDIO_GET errors are not normal. Which kernel do you use? |
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user124
Tux's lil' helper
Joined: 02 May 2002
Posts: 86
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| Posted: Thu May 09, 2002 11:23 am Post subject: |
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kernel is 2.4.19-r1
i think hte errors come from the fact that this is no hd - so there is no multicount, readahead or geometry (like cyl /sec /head)
the programs i used were both cdda2wav and cdparanoia. cdparanoia does afaik a multiread for verifying the data - so its slower. but cdda2wav schould read with max speed - it doesnt (the cd's i used were old - so no copy protection - but with no scratches).
the question is, why is the systemload 100% at ripping while copying normal data doesnt affect the system?
beside that, the normal copy is much faster than the ripping - so there is more data on the bus and this should produce load..
ive no idea 
user124 |
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user124
Tux's lil' helper
Joined: 02 May 2002
Posts: 86
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| Posted: Thu May 09, 2002 11:34 am Post subject: |
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ps: its a Traxdata CDRW 321240 tx
ripping tests show a top speed of 31x (on M$)
user124 |
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Coogee
Apprentice
Joined: 23 Apr 2002
Posts: 184
Location: E.U.
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| Posted: Thu May 09, 2002 5:11 pm Post subject: |
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Sorry, no idea what's wrong.
I only can tell you that I've got about 40 % system load (AMD 1500+) and my max. speed is 9x with cdparanoia and a new 48x DVD-ROM (measurements done manually, because I don't trust any speed measurement programs). |
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