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    SubjectRe: Adaptec-2920 eats too much cpu time when reading from the CD-ROM
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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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