[squid-users] small objects memory caching issue ?

After some memory upgrade to 4GB RAM, I am trying to optimize my squid caches to maintain as most as little objects in memory without storing them on disk. Big objects are not kept in memory but stored on disk.

these are my config parameters ...

cache_mem 600 MB
memory_replacement_policy heap GDSF
maximum_object_size_in_memory 16 KB
cache_replacement_policy heap LFUDA
minimum_object_size 16 KB
maximum_object_size 100 KB
cache_swap_low 95
cache_swap_high 95

acl QUERY urlpath_regex cgi-bin \?
cache deny QUERY
cache allow all

I notice not all small objects are kept in memory but we are well speaking about objects ...

* not containing ? in the query
* smaller than 16KB
* containing some explicit 'Content-Length' http header
* not containing any 'pragma no-cache' header

so my questions are ...

Is 'squidclient mgr:vm_objects |egrep 'GET|POST'' really the command to get all objects in memory (or is there another command) and is this command real-time (or do we have to expect some delay ) ??

Is the instruction 'cache' applicable for all kind of caching (memory and disk) or this only for disabling disk caching ??

/system

SQUID 2.7.4 in internal network behind another Internet Gateway SQUID 2.7.4 in the DMZ/ Solaris 8

many thks to help me
Vincent
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Received on Thu Dec 02 2010 - 20:25:34 MST