Re: [Xen-devel] [PATCH][RFC] open HVM backing storage with O_SYNC

["Christian Limpach" <christian.limpach@xxxxxxxxx>]

On 7/28/06, Rik van Riel <riel@xxxxxxxxxx> wrote:
> I noticed that the new qemu-dm code has DMA_MULTI_THREAD defined, so
> I/O already overlaps with CPU run time of the guest domain.  This
> means that we might as well open the backing storage with O_SYNC, so
> writes done by the guest hit the disk when the guest expects them to,
> and in the other the guest expects them to.
>
> I am now running my postgresql HVM test domain (which has had its
> database eaten a number of times by the async write behaviour) with
> this patch, and will try to abuse it heavily over the next few days.
>
> Any comments on this patch?
Applied, thanks!

    christian

> --
> "Debugging is twice as hard as writing the code in the first place.
> Therefore, if you write the code as cleverly as possible, you are,
> by definition, not smart enough to debug it." - Brian W. Kernighan
>
>
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