Re: cfq performance gap

[Miquel van Smoorenburg]

In article <000001c71e76$d4930e90$bb89030a@xxxxxxxxxxxxxxxxxx>,
Chen, Kenneth W <kenneth.w.chen@xxxxxxxxx> wrote:
>This rawio test plows through sequential I/O and modulo each small record
>over number of threads.  So each thread appears to be non-contiguous within
>its own process context, overall request hitting the device are sequential.
>I can't see how any application does that kind of I/O pattern.

A NNTP server that has many incoming connections, handled by
multiple threads, that stores the data in cylic buffers ?

Mike.
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