Re: ioband: Writer starves reader even without competitors

From: Ryo Tsuruta
Date: Wed Sep 16 2009 - 08:08:45 EST


Hi Vivek,

Vivek Goyal <vgoyal@xxxxxxxxxx> wrote:
> Hi Ryo,
>
> I notice that with-in a single ioband device, a single writer starves the
> reader even without any competitor groups being present.
>
> I ran following two tests with and without dm-ioband devices

Thank you again for testing dm-ioband.
I got the similar results and am investigating it now.
I'll let you know if I find something.

Thanks,
Ryo Tsuruta
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