mdounin at mdounin.ru
Thu Oct 14 21:35:28 MSD 2010
On Thu, Oct 14, 2010 at 07:54:14AM -0700, Indo Php wrote:
> Hi Maxim,
> With this config, my iowait in increasing. 38.4%wa
> before that, maximum is about 15%wa
The question isn't iowait, but how well your server behaves, i.e.
how many requests it can serve. You may want to monitor
throughput and latency instead.
On the other hand, under linux using aio may be bad idea if your
disk cache isn't completely trashed and still able to cache
something as aio on linux requires directio.
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