squid性能指标查看

squid性能分析

获得squid执行中的信息状况

1、当不知道有什么信息可以查询时

 ./squidclient -h 127.0.0.1 -p 80 mgr:

 

2、General Runtime Information，察看一般的状态

 ./squidclient -h 127.0.0.1 -p 80 mgr:info

 

 [root@bbs bin]# ./squidclient -h 127.0.0.1 -p 80 mgr:info

  HTTP/1.0 200 OK

  Date: Wed, 14 Sep 2011 01:14:00 GMT

  Content-Type: text/plain

  Expires: Wed, 14 Sep 2011 01:14:00 GMT

  Last-Modified: Wed, 14 Sep 2011 01:14:00 GMT

  Connection: close

  Squid Object Cache: Version 2.6.STABLE23

  Start Time:     Mon, 15 Aug 2011 07:29:43 GMT

  Current Time:   Wed, 14 Sep 2011 01:14:00 GMT

  Connection information for squid:

    Number of clients accessing cache:      7035    //使用proxy的客户端的数量

    Number of HTTP requests received:       102208621   //客户端http请求数量

    Number of ICP messages received:        0     //接受到的icp query数量

    Number of ICP messages sent:    0       //发出icp query数量

    Number of queued ICP replies:   0

    Request failure ratio:   0.00

    Average HTTP requests per minute since start:   2386.7  //每分钟http request的数量

    Average ICP messages per minute since start:    0.0   //每分钟处理的icp数量

    Select loop called: 1078256179 times, 2.383 ms avg

  Cache information for squid:

    Request Hit Ratios:     5min: 72.9%, 60min: 71.3%   //Cache Request命中率

    Byte Hit Ratios:        5min: 86.2%, 60min: 85.7%   //Cache Byte命中率

    Request Memory Hit Ratios:      5min: 16.9%, 60min: 18.3%

    Request Disk Hit Ratios:        5min: 36.6%, 60min: 41.2%

    Storage Swap size:      36863864 KB       //存放cache的磁盘使用量

    Storage Mem size:       602600 KB       //存放cache的内存使用量

    Mean Object Size:       72.02 KB

    Requests given to unlinkd:      822436

  Median Service Times (seconds)  5 min    60 min:     //平均回应时间

    HTTP Requests (All):   0.00865  0.01955

    Cache Misses:          0.13498  0.14252

    Cache Hits:            0.00463  0.00678

    Near Hits:             0.10281  0.11465

    Not-Modified Replies:  0.00091  0.00179

    DNS Lookups:           0.00000  0.00000

    ICP Queries:           0.00000  0.00000

  Resource usage for squid:          

    UP Time:        2569457.334 seconds

    CPU Time:       36073.998 seconds

    CPU Usage:      1.40%          //自squid启动起计算，CPU使用率

    CPU Usage, 5 minute avg:        2.15%      //最近5分钟CPU使用率

    CPU Usage, 60 minute avg:       1.73%      //最近60分钟CPU使用率

    Process Data Segment Size via sbrk(): 813452 KB

    Maximum Resident Size: 0 KB

    Page faults with physical i/o: 3

  Memory usage for squid via mallinfo():

    Total space in arena:  813452 KB

    Ordinary blocks:       811350 KB   2289 blks

    Small blocks:               0 KB      0 blks

    Holding blocks:          2976 KB      3 blks

    Free Small blocks:          0 KB

    Free Ordinary blocks:    2101 KB

    Total in use:          814326 KB 100%

    Total free:              2101 KB 0%

    Total size:            816428 KB

  Memory accounted for:            //内存使用状态

    Total accounted:       756036 KB

    memPoolAlloc calls: 3191693493

    memPoolFree calls: 3187306562

  File descriptor usage for squid:        

    Maximum number of file descriptors:   1024     //系统最大file descriptor数

    Largest file desc currently in use:    838     //目前使用file descriptor最大值

    Number of file desc currently in use:  738     //目前正在使用的file descriptor数

    Files queued for open:                   0

    Available number of file descriptors:  286     //剩余有效的使用量

    Reserved number of file descriptors:   100     //保留的使用量

    Store Disk files open:                  22

    IO loop method:                     epoll

  Internal Data Structures: 

    539827 StoreEntries           //Cache中存放的缓存档案数量

    137907 StoreEntries with MemObjects       //内存中的缓存档案数量

    137873 Hot Object Cache Items

    511853 on-disk objects          //磁盘中存放的快取档案数量

   

   

3、查看5分钟的状态

 ./squidclient -h 127.0.0.1 -p 80 mgr:5min

 

  [root@bbs bin]# ./squidclient -h 127.0.0.1 -p 80 mgr:5min

  HTTP/1.0 200 OK

  Date: Wed, 14 Sep 2011 06:25:00 GMT

  Content-Type: text/plain

  Expires: Wed, 14 Sep 2011 06:25:00 GMT

  Last-Modified: Wed, 14 Sep 2011 06:25:00 GMT

  Connection: close

  sample_start_time = 1315981166.699347 (Wed, 14 Sep 2011 06:19:26 GMT)

  sample_