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Date: Wed, 07 May 2014 11:12:13 +0200
From: Erwan Velu <erwan@enovance.com>
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Subject: Re: Fio giving iops results that are equal to RAM speeds
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To: Kim Holmebakken <kim.holmebakken@hotmail.com>
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Le 07/05/2014 10:58, Kim Holmebakken a =EF=BF=BDcrit :
> I tried running with the size=3D24G since the memory on the server is at =

> 12GB, this reduced the iops, however the MB/s is now reduced from=20
> 2000+ MB/s, and now running on 850 MB/s
>
> Still i think this might be a bit high?=20

If you do random IOs there is still a great chance of having cache hits.=20
This number have to be put in comparison with the network bandwidth.

If you have a 1Gbit connection ... 850 is clearly hitting lot of cache.