[squid-users] Squid not using all cache_mem/ Increase TCP_MEM_HIT squid 2.6

[andrew williams]

Thank you Amos.
maximum_object_size_in_memory must be the special setting that I had
missed.  Memory hits now up to 60%

Cache information for squid:

Request Hit Ratios: 5min: 84.4%, 60min: 78.6%

Byte Hit Ratios: 5min: 80.6%, 60min: 67.9%

Request Memory Hit Ratios: 5min: 63.1%, 60min: 66.1%

Request Disk Hit Ratios: 5min: 8.7%, 60min: 10.2%

Storage Swap size: 13823916 KB

Storage Mem size: 488276 KB

Mean Object Size: 61.36 KB

Requests given to unlinkd: 0


And yes I'm very keen to get to squid 3.. hopefully soon!


thanks!



On Thu, Nov 13, 2014 at 12:33 PM, Amos Jeffries <squid3 at treenet.co.nz>
wrote:

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> On 13/11/2014 2:07 p.m., andrew williams wrote:
> > Hi, I'm getting what I think is too low of MEM_HIT ratio..  I would
> > like squid to use all of the cache_mem, thus increasing MEM_HIT?
>
> You are running a 32-bit build of a Squid version deprecated more than
> 6 years ago.
>
> Please upgrade to a current release. Today that would be 3.4.9
> (stable) or 3.5.0.2 (beta).
>
>
> <snip>
> >
> > Why is squid not using all 4096 MB allocated? it's only using
> > 590MB according to mgr:info. Is there something extra I need to do?
> > To me the HIT rate is reasonable... they hit's are just not coming
> > from memory
>
> Your average object size is almost 64KB yet squid-2.6 only stores up
> to 8 KB objects in memory by default.
> <
> http://www.squid-cache.org/Versions/v2/2.6/cfgman/maximum_object_size_in_memory.html
> >
>
> One of the many benefits of upgrading is that the defaults are
> occasionally updated to reflect modern web reality. Todays Squid store
> objects up to 512KB by default in a default 256MB cache_mem.
>
> PS. Todays Squid also properly store and manage objects with
> Cache-Control:no-cache.
>
> Amos
>
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