Messages in this thread | | | Subject | Re: Adaptec-2920 eats too much cpu time when reading from the CD-ROM | Date | Thu, 6 Dec 2001 14:11:56 +0000 (GMT) | From | Alan Cox <> |
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> There is one interesting thing about it: when I write a CD, I write at 12x > - that means 1800Kb/s, which is comparable with the reading speed of 2400Kb/s. > But when writing, the system CPU usage is about 30%.
When you write the scsi layer keeps getting to the point where there are no commands to issue. When you read its always there waiting for the drive.
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