About choosing the right instance type for Varnish in AmazonEC2

Dridi Boukelmoune dridi at varni.sh
Fri Mar 10 23:05:20 CET 2017

On Fri, Mar 10, 2017 at 9:16 PM, Craig Servin
<cservin-varnish at cromagnon.com> wrote:
> We found that we run into the network IO limits before we had CPU issues.
> You have to use trial and error to figure out how much IO you can get from
> each instance type as we couldn't find good documentation defining that.
> However it seemed that the network limit goes up as you step up machine
> sizes in each family.

CPU usage tends to grow with features like compression or ESI, VMODs
may also burn cycles depending on their purpose.


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