varnishd and PAE

Nathan Uno nuno at
Tue Nov 4 08:08:57 CET 2008

Ok - that makes sense.  Thanks for you help!


On 11/4/08, Per Buer <perbu at> wrote:
> Hi,
> Nathan Uno skrev:
>> I'm running varnishd on PAE-enabled kernel (on PAE-capable hardware).
>> At startup varnishd recognizes that this is a 32-bit operating system
>> and restricts the cache size to 2GB.  I *think* PAE should prevent me
>> from running out of address space - is this a correct understanding?
> No. PAE makes it possible for you operating system to address more then
> 4Gb of memory. Unless there is is specific support in the application
> (there isn't) it will still be limited to a 32bit address space.
>> If so, is there a way for me to ask varnishd to ignore this limitation?
> No, sorry. 3 or 4 years ago it might have made sense to add the
> possibility to work around this limit (maybe by having several cache
> children each with 2GB) - but it is hardly relevant any more. There
> isn't much 32 bit hardware left these days.
> --
> Per Buer
> |

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