Re: Asynch I/O overloaded 2.2.15/2.3.99

From: Andrea Arcangeli (andrea@suse.de)
Date: Wed Apr 12 2000 - 12:49:27 EST


On Wed, 12 Apr 2000, Andi Kleen wrote:

>On Wed, Apr 12, 2000 at 07:15:46PM +0200, Andrea Arcangeli wrote:
>>
>> >Jeff saw a definate improvement in the performance of his system
>> >when running tq_disk...
>>
>> He should reduce NR_REQUEST instead of adding suprious
>> run_task_queue(&tq_disk) until the complexity problem of get_request gets
>> fixed.
>
>Or just use a free list for the requests instead of the slow linear
>search ?

Removing the linear search is what I meant with "fixing the complexity
problem of get_request".

Andrea

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