Re: A quick fio test (was Re: [patch 00/13] Syslets, "Threadlets", generic AIO support, v3)

Avi Kivity
2007-02-27T16:28:48Z

Ingo Molnar wrote:
>
>> Maybe a device mapper delay target or nbd + O_DIRECT can insert delays
>> to make the workload more disk-like.
>>
>
> yeah. I'll hack a small timeout into loopback requests i think. But then
> real disk-platter effects are left out ... so it all comes down to
> eventually having to try it on real disks too :)
>

Having a random component in the timeout may increase realism.

hundred-disk boxes are noisy, though the blinkenlights are nice :)

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