Re: [squid-users] New Accel Reverse Proxy Cache is not caching everything... how to force?

From: Waitman Gobble <waitman_at_waitman.net>
Date: Sun, 02 Aug 2009 01:59:21 -0700

Matus UHLAR - fantomas wrote:
> I hope you know what are you doing by configuring that big cache_mem...
> http://wiki.squid-cache.org/SquidFaq/SquidMemory
>
>
hmmm, i've read that. i don't by the way,

however, nothing bad has yet happened, mem utilization seems ok, cache
hits are up. but it's only been a few days.

HTTP: 1166366 Requests, 710613 Hits ( 61%)

mem_wire: 575164416 ( 548MB) [ 13%] Wired: disabled for
paging out
mem_active: + 140029952 ( 133MB) [ 3%] Active: recently referenced
mem_inactive:+ 3199938560 ( 3051MB) [ 77%] Inactive: recently not
referenced
mem_cache: + 82898944 ( 79MB) [ 2%] Cached: almost avail. for
allocation
mem_free: + 131850240 ( 125MB) [ 3%] Free: fully available for
allocation
mem_used: 880279552 ( 839MB) [ 20%] Logically used memory
mem_avail: + 3414687744 ( 3256MB) [ 79%] Logically available memory
mem_total: = 4294967296 ( 4096MB) [100%] Logically total memory

the machine this is sitting in front of went from 200% to 50% cpu load,
which was the ultimate goal, so life is good so far. it's darn fine
perky. i almost feel like setting up a bunch of cache machines just for
the fun of it.

Store Directory Statistics:
Store Entries : 95013
Maximum Swap Size : 314572800 KB
Current Store Swap Size: 4029136 KB
Current Capacity : 1% used, 99% free

Store Directory #0 (ufs): /cache
FS Block Size 2048 Bytes
First level subdirectories: 16
Second level subdirectories: 256
Maximum Size: 314572800 KB
Current Size: 4029136 KB
Percent Used: 1.28%
Filemap bits in use: 94901 of 131072 (72%)
Filesystem Space in use: 6238972/465070216 KB (1%)
Filesystem Inodes in use: 180048/60128254 (0%)
Flags: SELECTED
Removal policy: lru

LRU reference age: 2.44 days

the most disappointing thing is the CPU load on the cache server, it
hovers around zero (0). once i noticed it was at .2 (20%) and thought
something was about to happen, but it dropped down to zero again pretty
quick. it's rather like having a server that doesn't actually do
anything, and you want to load it up with some email servers or database
or something just so it feels better.

maybe i'll add another site, which receives much more traffic and see
what happens.

>> Removal policy: lru
>> LRU reference age: 1.25 days
>>
>
> I recomment using heap removal policy, even if it's heap lru - it's still
> faster than pure LRU
>

ok, i'll check that out, thanks for the suggestion - i appreciate it.
Received on Sun Aug 02 2009 - 09:00:11 MDT

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