Re: [squid-users] slower connections using squid (squid is slowing down all connections)

Hi Chris,

> Okay... These look pretty good. Hits are fast, misses are okay, DNS
> requests are about what I would expect... I'm a bit perplexed. What are
> the symptoms of slow connections? Is it throughput on large downloads,
> pages with lots of connections (msn.com with it's thousands of images),
> does it just take forever for a connection to get started, or is it
> something else entirely?

NO, the situation is very simple: not matter content of page. Even if
www.google.com is accesed, it take more then 20-30s to load/display it
correctly. Without squid, www.google.com is loaded instantly!

If matter, i am using pam_mysql plugin to autenticate users via mysql
database. All our squid users are virtuals (no one shell account).

Saturday (not a working day) on 24th i tested squid again arround 15 PM. The
speed seems to be good!!!!

Below comes runtime infos:

Connection information for squid:
 Number of clients accessing cache: 93
 Number of HTTP requests received: 80035
 Number of ICP messages received: 0
 Number of ICP messages sent: 0
 Number of queued ICP replies: 0
 Request failure ratio: 0.00
 Average HTTP requests per minute since start: 50.7
 Average ICP messages per minute since start: 0.0
 Select loop called: 1395442 times, 67.901 ms avg
Cache information for squid:
 Request Hit Ratios: 5min: 31.8%, 60min: 30.4%
 Byte Hit Ratios: 5min: 30.7%, 60min: 16.8%
 Request Memory Hit Ratios: 5min: 73.9%, 60min: 15.9%
 Request Disk Hit Ratios: 5min: 20.8%, 60min: 32.2%
 Storage Swap size: 4279168 KB
 Storage Mem size: 88348 KB
 Mean Object Size: 17.93 KB
 Requests given to unlinkd: 0
Median Service Times (seconds) 5 min 60 min:
 HTTP Requests (All): 0.22004 0.07825
 Cache Misses: 0.28853 0.23230
 Cache Hits: 0.00598 0.00767
 Near Hits: 0.00562 0.14252
 Not-Modified Replies: 0.00000 0.00286
 DNS Lookups: 0.25460 0.30421
 ICP Queries: 0.00000 0.00000
Resource usage for squid:
 UP Time: 94751.350 seconds
 CPU Time: 90.325 seconds
 CPU Usage: 0.10%
 CPU Usage, 5 minute avg: 0.20%
 CPU Usage, 60 minute avg: 0.09%
 Process Data Segment Size via sbrk(): 125348 KB
 Maximum Resident Size: 0 KB
 Page faults with physical i/o: 1
Memory usage for squid via mallinfo():
 Total space in arena: 125348 KB
 Ordinary blocks: 125197 KB 4170 blks
 Small blocks: 0 KB 0 blks
 Holding blocks: 1784 KB 3 blks
 Free Small blocks: 0 KB
 Free Ordinary blocks: 150 KB
 Total in use: 126981 KB 100%
 Total free: 150 KB 0%
 Total size: 127132 KB
Memory accounted for:
 Total accounted: 111186 KB
 memPoolAlloc calls: 11312114
 memPoolFree calls: 10645444
File descriptor usage for squid:
 Maximum number of file descriptors: 1024
 Largest file desc currently in use: 126
 Number of file desc currently in use: 111
 Files queued for open: 0
 Available number of file descriptors: 913
 Reserved number of file descriptors: 100
 Store Disk files open: 0
Internal Data Structures:
 238974 StoreEntries
   7753 StoreEntries with MemObjects
   7752 Hot Object Cache Items
 238643 on-disk objects

Alex
Received on Sat Sep 24 2005 - 06:21:33 MDT