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12/12/2006 at 12:26AM PST, ID: 22090163
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9.8

How to learn which process is taking so much CPU resource

Asked by blacklord in Linux

Tags: resource, httpd, taking

Hello Everyone,

I am having CPU resource problem on my VPS server. When I login via SSH root and type "# top" I get the following screen:

 00:26:36  up 3 days, 14:47,  1 user,  load average: 58.81, 57.81, 55.62
286 processes: 225 sleeping, 60 running, 1 zombie, 0 stopped
CPU states:  cpu    user    nice  system    irq  softirq  iowait    idle
           total   98.7%    0.0%    1.2%   0.0%     0.0%    0.0%    0.0%
           cpu00   99.5%    0.0%    0.4%   0.0%     0.0%    0.0%    0.0%
           cpu01   96.3%    0.0%    3.6%   0.0%     0.0%    0.0%    0.0%
           cpu02  100.0%    0.0%    0.0%   0.0%     0.0%    0.0%    0.0%
           cpu03   99.3%    0.0%    0.6%   0.0%     0.0%    0.0%    0.0%
Mem:  6156504k av, 5959036k used,  197468k free,       0k shrd,   39268k buff
      3912760k active,            1132040k inactive
Swap: 2048152k av, 1325452k used,  722700k free                 2100612k cached

  PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME CPU COMMAND
23562 apache    25   0 57680  24M 50160 R     2.4  0.4  13:18   1 httpd
15441 apache    25   0 57604  29M 50160 R     2.0  0.4   0:52   2 httpd
13500 apache    25   0 57408  19M 50160 R     1.9  0.3  10:57   3 httpd
30669 apache    25   0 57404  18M 50160 R     1.9  0.3  10:22   2 httpd
13593 apache    25   0 57540  26M 50184 R     1.9  0.4   4:36   2 httpd
13652 apache    25   0 57488  26M 50160 R     1.9  0.4   4:04   0 httpd
17541 apache    25   0 57520  26M 50160 R     1.9  0.4   1:30   3 httpd
32064 apache    25   0 57416  23M 50160 R     1.7  0.3  18:12   1 httpd
13761 apache    25   0 57384  20M 50160 R     1.7  0.3   6:57   0 httpd
25878 apache    25   0 57396  17M 50160 R     1.6  0.2   2:19   2 httpd
 5402 apache    25   0 57488  21M 50160 R     1.6  0.3   0:09   0 httpd
24292 apache    25   0 57540  24M 50184 R     1.5  0.4   9:29   3 httpd
17657 apache    25   0 57744  18M 50160 R     1.5  0.3   7:40   2 httpd
15546 apache    25   0 57772  32M 50160 R     1.4  0.5  43:03   2 httpd
 7277 apache    25   0 57500  25M 50160 R     1.4  0.4  37:42   1 httpd
12115 apache    25   0 57464  25M 50160 R     1.4  0.4  29:42   2 httpd
11285 apache    25   0 57472  23M 50160 R     1.4  0.3  27:08   3 httpd
11296 apache    25   0 57552  25M 50160 R     1.4  0.4  21:58   2 httpd
25996 apache    25   0 57388  21M 50160 R     1.4  0.3  20:31   0 httpd
 5662 apache    25   0 57616  28M 50184 R     1.4  0.4  12:10   3 httpd
 5672 apache    25   0 57560  28M 50160 R     1.4  0.4  16:00   0 httpd
19909 apache    25   0 57480  19M 50160 R     1.4  0.3  17:36   2 httpd
21741 apache    25   0 57512  26M 50160 R     1.4  0.4  14:20   0 httpd
17466 apache    25   0 57356  20M 50160 R     1.4  0.3  15:06   0 httpd
13799 apache    25   0 57540  22M 50184 R     1.4  0.3  12:36   0 httpd
13492 apache    25   0 57304  18M 50160 R     1.4  0.3  11:25   0 httpd
15792 apache    25   0 57512  26M 50184 R     1.4  0.4   8:33   0 httpd
16140 apache    25   0 57792  23M 50184 R     1.4  0.3   7:18   1 httpd
20000 apache    25   0 57304  16M 50160 R     1.4  0.2   7:57   0 httpd
13571 apache    25   0 57600  25M 50184 R     1.4  0.4   4:57   2 httpd
13651 apache    25   0 57380  19M 50160 R     1.4  0.3   5:30   2 httpd
22482 apache    25   0 57520  22M 50160 R     1.4  0.3   3:33   3 httpd
22483 apache    25   0 57476  25M 50160 R     1.4  0.4   3:39   3 httpd
 9605 apache    25   0 57584  27M 50184 R     1.4  0.4   1:58   0 httpd
17563 apache    25   0 57488  25M 50184 R     1.4  0.4   2:08   1 httpd
18294 apache    25   0 57364  20M 50160 R     1.4  0.3   2:28   3 httpd
24484 apache    25   0 57544  27M 50160 R     1.4  0.4   1:36   0 httpd
27790 apache    25   0 57580  23M 50160 R     1.4  0.3   1:01   0 httpd
32470 apache    25   0 57480  23M 50160 R     1.4  0.3   0:54   3 httpd
32488 apache    25   0 57516  26M 50160 R     1.4  0.4   0:45   1 httpd
 9631 apache    25   0 57624  22M 50160 R     1.4  0.3   0:23   2 httpd
22410 apache    25   0 57488  26M 50184 R     1.2  0.4  23:26   1 httpd
 1512 apache    25   0 57720  32M 50160 R     1.0  0.5  25:38   0 httpd
18199 apache    25   0 57480  23M 50160 R     1.0  0.3  19:21   1 httpd
28043 apache    25   0 57604  26M 50184 R     1.0  0.4  16:44   3 httpd
13622 apache    25   0 57492  22M 50184 R     1.0  0.3   5:13   2 httpd
13379 apache    25   0 57304  16M 50160 R     1.0  0.2   2:48   1 httpd
30031 apache    25   0 57416  21M 50160 R     0.9  0.3  33:33   3 httpd
 5275 apache    25   0 57352  17M 50160 R     0.9  0.2  13:29   3 httpd
13501 apache    25   0 57484  22M 50160 R     0.9  0.3  10:00   2 httpd
13493 apache    25   0 57552  26M 50184 R     0.9  0.4   6:37   2 httpd
17652 apache    25   0 57492  21M 50184 R     0.9  0.3   9:01   1 httpd
17558 apache    25   0 57428  22M 50160 R     0.9  0.3   6:10   3 httpd
 9863 apache    25   0 57376  16M 50160 R     0.9  0.2   5:48   1 httpd
28253 apache    25   0 57488  20M 50160 R     0.9  0.3   4:16   1 httpd

As you can see, all my 4 CPUs are 100% loaded and there are lots of HTTPD processes. This makes my website and other server services unavailable.

I wonder how can I learn the URL of each one of these processes?

For example, I wonder what PID #28253 httpd points to (ex: http://www.mysite.com/myscript.php)?

Is it possible?

Thanks.
[+][-]12/12/06 12:43 AM, ID: 18120946

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Zone: Linux
Tags: resource, httpd, taking
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Solution Provided By: ravenpl
Participating Experts: 1
Solution Grade: A
 
 
[+][-]12/12/06 01:03 AM, ID: 18121002

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[+][-]12/12/06 01:08 AM, ID: 18121017

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