[ASK][TA] about squid mgr:info - memory

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[ASK][TA] about squid mgr:info - memory

VLADISLAUSXV

24-09-2014 12:55

halo agan agan yang baik hatinya emoticon-Toast

ane mau sedikit nanya nih tentang Tugas Akhir yang sedang ane kerjakan yaitu squid proxy.
langsung aja ya gan... ane dapat data dari mgr:info seperti ini:

Spoiler for mgr:info:

Squid Object Cache: Version 3.1.23
Start Time: Wed, 24 Sep 2014 08:11:08 GMT
Current Time: Wed, 24 Sep 2014 08:22:01 GMT
Connection information for squid:
Number of clients accessing cache: 0
Number of HTTP requests received: 565
Number of ICP messages received: 0
Number of ICP messages sent: 0
Number of queued ICP replies: 0
Number of HTCP messages received: 0
Number of HTCP messages sent: 0
Request failure ratio: 0.00
Average HTTP requests per minute since start: 51.9
Average ICP messages per minute since start: 0.0
Select loop called: 81783 times, 7.983 ms avg
Cache information for squid:
Hits as % of all requests: 5min: 9.1%, 60min: 6.1%
Hits as % of bytes sent: 5min: 7.0%, 60min: 5.4%
Memory hits as % of hit requests: 5min: 100.0%, 60min: 100.0%
Disk hits as % of hit requests: 5min: 0.0%, 60min: 0.0%
Storage Swap size: 9724 KB
Storage Swap capacity: 0.0% used, 100.0% free
Storage Mem size: 7736 KB
Storage Mem capacity: 0.5% used, 99.5% free
Mean Object Size: 23.49 KB
Requests given to unlinkd: 0
Median Service Times (seconds) 5 min 60 min:
HTTP Requests (All): 0.18699 0.15048
Cache Misses: 0.28853 0.18699
Cache Hits: 0.00000 0.00000
Near Hits: 0.00000 0.00000
Not-Modified Replies: 0.00000 0.00000
DNS Lookups: 0.05815 0.05559
ICP Queries: 0.00000 0.00000
Resource usage for squid:
UP Time: 652.895 seconds
CPU Time: 1.482 seconds
CPU Usage: 0.23%
CPU Usage, 5 minute avg: 0.25%
CPU Usage, 60 minute avg: 0.21%
Process Data Segment Size via sbrk(): 15120 KB
Maximum Resident Size: 98960 KB
Page faults with physical i/o: 0
Memory usage for squid via mallinfo():
Total space in arena: 15252 KB
Ordinary blocks: 15145 KB 11 blks
Small blocks: 0 KB 0 blks
Holding blocks: 27164 KB 9 blks
Free Small blocks: 0 KB
Free Ordinary blocks: 107 KB
Total in use: 42309 KB 100%
Total free: 107 KB 0%
Total size: 42416 KB
Memory accounted for:
Total accounted: 10582 KB 25%
memPool accounted: 10582 KB 25%
memPool unaccounted: 31834 KB 75%
memPoolAlloc calls: 138077
memPoolFree calls: 142588
File descriptor usage for squid:
Maximum number of file descriptors: 65535
Largest file desc currently in use: 179
Number of file desc currently in use: 139
Files queued for open: 0
Available number of file descriptors: 65396
Reserved number of file descriptors: 100
Store Disk files open: 9
Internal Data Structures:
453 StoreEntries
452 StoreEntries with MemObjects
439 Hot Object Cache Items
414 on-disk objects

sedangkan pada saat yang bersamaan, ane jalanin script autogrep yang ane bikin untuk meng grep dari berbagai sumber (top, ps, dll), dan datanya seperti ini:

Spoiler for grep:

PS:===============
proxy 1827 0.2 0.7 55884 24688 pts/0 Sl+ 15:11 0:01 /etc/squid/sbin/squid -NCd1
top mem:===============
1827 proxy 20 0 56032 24m 3192 S 1.9 0.8 0:01.46 squid
free:===============
total used free shared buffers cached
Mem: 3024 426 2598 0 36 229
Swap: 2047 0 2047
top cpu:===============
Cpu(s): 1.7%us, 1.4%sy, 0.0%ni, 95.6%id, 1.3%wa, 0.0%hi, 0.0%si, 0.0%st
df:============================================================================
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 49G 2.6G 46G 6% /
tmpfs 1.5G 372K 1.5G 1% /dev/shm
/dev/sdb1 49G 202M 46G 1% /squidcache
/dev/sda2 20G 946M 18G 6% /var
===============
eth1(net): RX bytes:11518142 (10.9 MiB) TX bytes:1076822 (1.0 MiB)
0
eth0(client): RX bytes:716481 (699.6 KiB) TX bytes:11910443 (11.3 MiB)

yang ane mau tanyakan adalah:
1. apakah memory yang digunakan untuk menjalankan process squid itu dipisah dengan alokasi memori untuk menyimpan cache_mem?
2. yang ane kasih warna merah itu, terutama yang dari mgr:info, kenapa selisihnya nggak matching dengan data dari grep top dan ps ya?
3. yang ane kasih warna biru di mgr:info, kenapa Number of clients accessing cache: 0? padahal ada yang konek 1 komputer
4. kemudian yang warna ungu, kenapa angkanya blas nggak matching sama sekali ya gan?
ane udah baca bukunya O'Reilly - Squid The Definitive Guide, tapi tak juga mengerti emoticon-Sorry

udah itu dulu ah gan...
plis bantuin gan... kata dosen ane, ane ga boleh konsul kalo belom nemu jawabannya gan emoticon-Mewek

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