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2026-06-10T02:03:04Z
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https://wiki.openvz.org/index.php?title=The_number_of_processes_seems_to_be_wrong_in_VE&diff=3097
The number of processes seems to be wrong in VE
2007-05-15T09:34:03Z
<p>Ckaiser: /* Disclosure */</p>
<hr />
<div>==Problem==<br />
<br />
Quite a few people complain at the forum that <tt> vzlist</tt> command outputs wrong proccess number (e.g. http://forum.openvz.org/index.php?t=tree&goto=12664&#msg_12664). Look:<br />
<pre><br />
[root@HN ~] # vzlist<br />
VPSID NPROC STATUS IP_ADDR HOSTNAME<br />
1001 63 running xx.yy.136.88 promo.HN.com<br />
1002 12 running xx.yy.138.6 video.HN.com<br />
1003 24 running xx.yy.136.86 db.HN.com<br />
<br />
[root@HN ~] # vzctl exec 1001 ps aux | wc -l<br />
13<br />
[root@HN ~] # vzctl exec 1002 ps aux | wc -l<br />
14<br />
[root@HN ~] # vzctl exec 1003 ps aux | wc -l<br />
17<br />
</pre><br />
<br />
As you see, the number is false for [[VE]] 1001 and 1003, but is correct for [[VE]] 1002 (14 = 12 + 1 (wc command) + 1 (ps command)).<br />
<br />
==Disclosure==<br />
<br />
The thing is that <tt>ps aux</tt> command outputs only "full-fledged" processes, but not threads. And `vzlist` command counts all processes in [[VE]] including threads. <tt>ps -eLf</tt> command allows you to see all processes:<br />
<pre><br />
[root@HN ~] # vzctl exec 1001 ps -eLf | wc -l<br />
65<br />
[root@HN ~] # vzctl exec 1002 ps -eLf | wc -l<br />
14<br />
[root@HN ~] # vzctl exec 1003 ps -eLf | wc -l<br />
26<br />
</pre><br />
<br />
Now the outputs suite each other.<br />
<br />
[[Category:Troubleshooting]]</div>
Ckaiser
https://wiki.openvz.org/index.php?title=The_number_of_processes_seems_to_be_wrong_in_VE&diff=3096
The number of processes seems to be wrong in VE
2007-05-15T09:33:43Z
<p>Ckaiser: /* Disclosure */</p>
<hr />
<div>==Problem==<br />
<br />
Quite a few people complain at the forum that <tt> vzlist</tt> command outputs wrong proccess number (e.g. http://forum.openvz.org/index.php?t=tree&goto=12664&#msg_12664). Look:<br />
<pre><br />
[root@HN ~] # vzlist<br />
VPSID NPROC STATUS IP_ADDR HOSTNAME<br />
1001 63 running xx.yy.136.88 promo.HN.com<br />
1002 12 running xx.yy.138.6 video.HN.com<br />
1003 24 running xx.yy.136.86 db.HN.com<br />
<br />
[root@HN ~] # vzctl exec 1001 ps aux | wc -l<br />
13<br />
[root@HN ~] # vzctl exec 1002 ps aux | wc -l<br />
14<br />
[root@HN ~] # vzctl exec 1003 ps aux | wc -l<br />
17<br />
</pre><br />
<br />
As you see, the number is false for [[VE]] 1001 and 1003, but is correct for [[VE]] 1002 (14 = 12 + 1 (wc command) + 1 (ps command)).<br />
<br />
==Disclosure==<br />
<br />
The thing is that <tt>ps aux</tt> command outputs only "full-fledged" processes, but not threads. And `vzlist` command counts all processes in [[VE]] including threads. <tt>ps -eLf</tt> command allows you to see all processes:<br />
<pre><br />
[root@HN ~] # vzctl exec 1001 ps -elf | wc -l<br />
65<br />
[root@HN ~] # vzctl exec 1002 ps -elf | wc -l<br />
14<br />
[root@HN ~] # vzctl exec 1003 ps -elf | wc -l<br />
26<br />
</pre><br />
<br />
Now the outputs suite each other.<br />
<br />
[[Category:Troubleshooting]]</div>
Ckaiser