Re: IDE drive data transfer rates, kernel optimization?

Meelis Roos (mroos@tartu.cyber.ee)
Fri, 7 Aug 1998 11:52:50 +0300

>> > unmaskirq = 0 (off)
>>
>> You can usually get a performance boost by enabling it. I've only seen
>> DTC VLB I/O cards munge this up.

Not a boost but a slight decrease in speed (tested on 2 or 3 computers).
AFAIK the idea is to enable interrupts while doing IDE transfers to enable
serial cards etc get their interrupts through. I needed this on one computer
to use all 5 serial ports without much overruns and underruns. But this
decreases IDE throughput.

-- 
Meelis Roos (mroos@tartu.cyber.ee)


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