Hi Ahmad,
On 07/31/2013 03:36 PM, Ahmad wrote:
hi ,
i have a question
i have a server with 48 G of rams ,
in squid.conf file ive served mem for squid to be only 1 G
but my question is why is my total memory is get full after sometime ??
result is below from my server :
====================================================
root@drvirus:~# free -m
total used free shared buffers cached
Mem: 48296 47853 442 0 1893 38302
-/+ buffers/cache: 7658 40638
Swap: 0 0 0
root@drvirus:~# cat /etc/squid3/squid.conf | grep cache_mem
cache_mem 1000 MB
==========================================================
as we see , the free memory is just 442 M and ive just configured memory 1 g
for squid , and also i only use my system for squid , so i dont tink that
other processess other than squid is eating my memory !!
Please pay your attention that most of memory consumed is cache, i.e.
the one is not really used at the moment and could be freed at any
moment without harm to the system. Please see
http://www.linuxatemyram.com/ for easy explanation.
here is output of the command top :
top
/top - 14:35:06 up 2 days, 22:58, 2 users, load average: 3.04, 2.25, 1.90
Tasks: 190 total, 1 running, 188 sleeping, 0 stopped, 1 zombie
Cpu(s): 5.2%us, 9.7%sy, 0.0%ni, 77.4%id, 4.3%wa, 0.0%hi, 3.4%si,
0.0%st
Mem: 49455732k total, 49092852k used, 362880k free, 1898256k buffers
Swap: 0k total, 0k used, 0k free, 39341964k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2936 proxy 20 0 4950m 4.8g 2244 D 81 10.1 3025:47 squid3
15837 proxy 20 0 305m 171m 2532 S 78 0.4 43:02.94 python
2417 mysql 20 0 449m 61m 2724 S 7 0.1 208:01.06 mysqld
27535 proxy 20 0 148m 14m 2336 S 6 0.0 30:21.52 python
27536 proxy 20 0 147m 14m 2336 S 3 0.0 22:03.57 python
27542 proxy 20 0 147m 13m 2336 S 2 0.0 9:32.79 python
27539 proxy 20 0 147m 14m 2336 S 1 0.0 15:19.15 python
27549 proxy 20 0 148m 14m 2336 S 1 0.0 6:03.95 python
15 root 20 0 0 0 0 S 1 0.0 35:56.55 ksoftirqd/2
23 root 20 0 0 0 0 S 1 0.0 35:43.95 ksoftirqd/4
31 root 20 0 0 0 0 S 1 0.0 35:04.29 ksoftirqd/6
39 root 20 0 0 0 0 S 1 0.0 32:19.42 ksoftirqd/8
55 root 20 0 0 0 0 S 1 0.0 32:55.90 ksoftirqd/12
63 root 20 0 0 0 0 S 1 0.0 32:21.44 ksoftirqd/14
16225 proxy 20 0 3952 272 208 S 1 0.0 1:02.64 tail
27598 proxy 20 0 147m 13m 2344 S 1 0.0 3:35.83 python
3 root 20 0 0 0 0 S 1 0.0 19:24.87 ksoftirqd/0
47 root 20 0 0 0 0 S 1 0.0 34:32.83 ksoftirqd/10
2862 root 20 0 0 0 0 S 1 0.0 2:39.92 flush-8:0
27601 proxy 20 0 147m 16m 2336 S 1 0.0 2:19.74 python
28405 www-data 20 0 1208m 3912 1072 S 1 0.0 0:01.67 apache2
10 root 20 0 0 0 0 S 0 0.0 10:42.76 ksoftirqd/1
19 root 20 0 0 0 0 S 0 0.0 10:58.87 ksoftirqd/3
27 root 20 0 0 0 0 S 0 0.0 11:02.36 ksoftirqd/5
35 root 20 0 0 0 0 S 0 0.0 11:21.07 ksoftirqd/7
51 root 20 0 0 0 0 S 0 0.0 10:35.43 ksoftirqd/11
59 root 20 0 0 0 0 S 0 0.0 5:56.19 ksoftirqd/13
67 root 20 0 0 0 0 S 0 0.0 5:03.22 ksoftirqd/15
542 root 20 0 0 0 0 S 0 0.0 13:25.53 kswapd0
543 root 20 0 0 0 0 S 0 0.0 8:02.43 kswapd1
2866 root 20 0 0 0 0 S 0 0.0 6:52.55 flush-8:48
2867 root 20 0 0 0 0 S 0 0.0 8:07.08 flush-8:80
8141 www-data 20 0 1145m 4092 1136 S 0 0.0 0:03.23 apache2
9990 root 20 0 0 0 0 S 0 0.0 2:38.96 kworker/0:2
20502 www-data 20 0 1145m 5172 1152 S 0 0.0 0:10.88 apache2
27604 proxy 20 0 147m 13m 2336 S 0 0.0 1:27.98 python
30424 www-data 20 0 1145m 5124 1344 S 0 0.0 0:10.37 apache2
1 root 20 0 8404 760 624 S 0 0.0 0:03.01 init
2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd
5 root 20 0 0 0 0 S 0 0.0 0:04.12 kworker/u:0 /
wish to clarify
regards
Please note, that 'cache_mem' configuration directive just limits amount
of memory used by cache itself, i.e. stored in cache documents. But
squid in whole consumes more RAM, of course.
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Best wishes,
Pavel
