Size a file backed cache

[Per Buer]

No. The overhead is in the form of memory structures.


On Wed, Apr 10, 2013 at 1:50 PM, Sean Allen <sean at monkeysnatchbanana.com>wrote:

> I understand that. Let me rephrase that question. When using file storage,
> am I correct in assuming, that the overhead uses additional space on the
> volume that the file itself is on?
>
>
> On Tue, Apr 9, 2013 at 8:43 PM, Stephen Wood <smwood4 at gmail.com> wrote:
>
>> Ultimately the amount of overhead space needed is determined by the
>> number of objects you have. The overhead is about 1k per object. You can
>> read more at *Sizing Your Cache*<https://www.varnish-cache.org/docs/3.0/tutorial/sizing_your_cache.html>on the varnish doc.
>>
>>
>> On Tue, Apr 9, 2013 at 12:05 PM, Sean Allen <sean at monkeysnatchbanana.com>wrote:
>>
>>> I know when using malloc storage, that we end up based on our object
>>> size, about another 100% percent memory to store additional booking info.
>>> So where we have a
>>>
>>> -s malloc, 6g
>>>
>>> We need a total of 12g available to the OS.
>>>
>>> If I switch to
>>>
>>> -s file, 10g
>>>
>>> Do I need 20g of HD space available on that drive?
>>> I'm unclear how the issues with malloc map to file storage backend.
>>> For example, why does file default to 50% sizing of the volume?
>>>
>>>
>>> _______________________________________________
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>>> varnish-misc at varnish-cache.org
>>> https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
>>>
>>
>>
>
>
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 <http://www.varnish-software.com/> *Per Buer*
CEO | Varnish Software AS
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