Re: md-raid5+lvm+dm-crypt+kvm: one streaming write starves all reads

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Erh, no, this would come down to 0.1 seconds (since it's 100th - centi).

And now, it does not start a flush, it only wakes the daemon up for
analysis and consideration. If, and how much is flushed depends on other
tuneables.
Unfortunately it's not that straight forward.

Regards

-Sven

P.S.: Sorry for the duplicate post with the wrong e-mail addy.

On Fri, September 18, 2009 23:09, Arno Wagner wrote:
>
> A pity. Have you tried to set dirty_writeback_centisecs to
> something very low, e.g. 10? If I understand this correctly that would
cause regular flushes to start after 1 sec.
>
>
> Arno
>
>




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