Re: Bad performance when reads and writes on same LUN

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On 2011-09-02 21:06, Neto, Antonio Jose Rodrigues wrote:
> The question that I have is:
> 
> "Buffered aio will fall back to sync io, and it's known that mixing"
> 
> Why did buffered aio will fall back to sync io?

Please don't top post, reply beneat the original text.

Buffered aio will degenerate to normal sync IO, because the kernel does
not support async buffered io.

-- 
Jens Axboe

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