Re: [squid-users] high response time in the case of high file descriptor usage

From: K Pang <time_breath@dont-contact.us>
Date: Tue, 18 Apr 2006 09:28:48 +0800

>
> - Could you post the relevant output from cachemgr , which takes you
>to this conclusion ?

> M.

Hi, thanks a lot, the return from cache manager is as below:

Squid Object Cache: Version 2.5.STABLE13
Start Time: Mon, 03 Apr 2006 03:32:17 GMT
Current Time: Tue, 18 Apr 2006 01:16:21 GMT

Connection information for squid:
        Number of clients accessing cache: 0
        Number of HTTP requests received: 78327593
        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: 3649.2
        Average ICP messages per minute since start: 0.0
        Select loop called: 147419305 times, 8.736 ms avg
Cache information for squid:
        Request Hit Ratios: 5min: 35.9%, 60min: 36.8%
        Byte Hit Ratios: 5min: 19.0%, 60min: 24.2%
        Request Memory Hit Ratios: 5min: 5.8%, 60min: 6.9%
        Request Disk Hit Ratios: 5min: 36.5%, 60min: 35.1%
        Storage Swap size: 283052460 KB
        Storage Mem size: 262108 KB
        Mean Object Size: 32.70 KB
        Requests given to unlinkd: 14743565
Median Service Times (seconds) 5 min 60 min:
        HTTP Requests (All): 0.37825 0.35832
        Cache Misses: 0.55240 0.55240
        Cache Hits: 0.03427 0.02317
        Near Hits: 0.46965 0.44492
        Not-Modified Replies: 0.01648 0.01164
        DNS Lookups: 0.01046 0.00464
        ICP Queries: 0.00000 0.00000
Resource usage for squid:
        UP Time: 1287843.999 seconds
        CPU Time: 628326.720 seconds
        CPU Usage: 48.79%
        CPU Usage, 5 minute avg: 71.82%
        CPU Usage, 60 minute avg: 63.51%
        Process Data Segment Size via sbrk(): 766738 KB
        Maximum Resident Size: 0 KB
        Page faults with physical i/o: 391
Memory usage for squid via mallinfo():
        Total space in arena: 1246994 KB
        Ordinary blocks: 1142379 KB 1132950 blks
        Small blocks: 0 KB 0 blks
        Holding blocks: 52652 KB 22 blks
        Free Small blocks: 0 KB
        Free Ordinary blocks: 104614 KB
        Total in use: 1195031 KB 92%
        Total free: 104614 KB 8%
        Total size: 1299646 KB
Memory accounted for:
        Total accounted: 954298 KB
        memPoolAlloc calls: 2177873376
        memPoolFree calls: 2150987641
File descriptor usage for squid:
        Maximum number of file descriptors: 8192
        Largest file desc currently in use: 1662
        Number of file desc currently in use: 1140
        Files queued for open: 0
        Available number of file descriptors: 7052
        Reserved number of file descriptors: 100
        Store Disk files open: 33
Internal Data Structures:
        8660547 StoreEntries
         31606 StoreEntries with MemObjects
         31392 Hot Object Cache Items
        8656945 on-disk objects
Received on Mon Apr 17 2006 - 19:28:53 MDT

This archive was generated by hypermail pre-2.1.9 : Mon May 01 2006 - 12:00:02 MDT