top incorrectly reporting process time

[Kris Kennaway]

Ott Köstner wrote:
> Kris Kennaway wrote:
>> Ott Köstner wrote:
>>> Jeremy Chadwick wrote:
>>>> On Sun, Nov 16, 2008 at 04:34:01PM +0200, Ott Köstner wrote:
>>>>  
>>>>> On several FreeBSD machines I have the following problem:
>>>>>     
>>>>
>>>> What FreeBSD version?  (It matters)
>>>>   
>>> 7.1-PRERELEASE FreeBSD
>>>
>>> But I can experience it also on a 7.0 machine. Seems that top reports
>>> incorrectly processes with multiple threads.
>>>
>>> $ top -bUbind
>>> last pid: 21635;  load averages:  0.73,  0.46,  0.29  up 1+00:17:18
>>> 16:48:10
>>> 54 processes:  1 running, 53 sleeping
>>>
>>> Mem: 66M Active, 1174M Inact, 204M Wired, 36K Cache, 112M Buf, 555M Free
>>> Swap: 2048M Total, 2048M Free
>>>
>>>  PID USERNAME  THR PRI NICE   SIZE    RES STATE  C   TIME   WCPU COMMAND
>>>  979 bind        8  44    0 40288K 32916K select 0   0:16  0.00% named
>>>
>>> $ ps -ax|grep 979
>>>  979  ??  Ss     1:11.26 /usr/sbin/named -n 5 -t /var/named -u bind
>>
>> Check top -H to display the statistics for individual threads.
>>
>> Kris
> # top -bUmysql
> last pid:  8336;  load averages:  0.33,  0.30,  0.24  up 13+22:36:29    
> 08:47:07
> 157 processes: 1 running, 156 sleeping
> 
> Mem: 1163M Active, 2058M Inact, 555M Wired, 160M Cache, 214M Buf, 22M Free
> Swap: 4096M Total, 432K Used, 4095M Free
> 
> 
>  PID USERNAME      THR PRI NICE   SIZE    RES STATE  C   TIME   WCPU 
> COMMAND
> 1079 mysql           9  20    0 92316K 70472K sigwai 1   0:04  0.00% mysqld
> 1015 mysql           1   8    0  7056K  1332K wait   1   0:00  0.00% sh
> 
> ------------------------------------------------------------------------------------------------------------- 
> 
> # top -bHUmysql
> last pid:  8497;  load averages:  0.36,  0.32,  0.25  up 13+22:37:43    
> 08:48:21
> 148 processes: 4 running, 144 sleeping
> 
> Mem: 1147M Active, 2068M Inact, 554M Wired, 156M Cache, 214M Buf, 32M Free
> Swap: 4096M Total, 432K Used, 4095M Free
> 
> 
>  PID USERNAME     PRI NICE   SIZE    RES STATE  C   TIME   WCPU COMMAND
> 1079 mysql         44    0 92316K 70472K select 0   4:10  0.00% mysqld
> 1079 mysql         44    0 92316K 70472K select 0   3:12  0.00% mysqld
> 1079 mysql         44    0 92316K 70472K select 1   1:59  0.00% mysqld
> 1079 mysql         44    0 92316K 70472K ucond  0   0:47  0.00% mysqld
> 1079 mysql         44    0 92316K 70472K select 0   0:26  0.00% mysqld
> 1079 mysql         20    0 92316K 70472K sigwai 1   0:04  0.00% mysqld
> 1079 mysql         44    0 92316K 70472K ucond  0   0:04  0.00% mysqld
> 1079 mysql         44    0 92316K 70472K ucond  1   0:01  0.00% mysqld
> 1015 mysql          8    0  7056K  1332K wait   1   0:00  0.00% sh
> 1079 mysql         44    0 92316K 70472K ucond  0   0:00  0.00% mysqld
> -------------------------------------------------------------------------------------------------------------- 
> 

This seems to be the only inconsistent one:

> # ps -ax|grep 1079
> 1079 con- S    576:13.90 [mysqld]

Check that your ps binary is in sync with your kernel, i.e. rebuild 
world with the same sources you used to build your kernel.

Kris

> -------------------------------------------------------------------------------------------------------------- 
> # ps -aHx|grep 1079
> 1079 con- S      1:58.71 [mysqld]
> 1079 con- I      0:00.00 [mysqld]
> 1079 con- S      0:01.30 [mysqld]
> 1079 con- I      0:46.72 [mysqld]
> 1079 con- S      0:03.51 [mysqld]
> 1079 con- S      0:26.05 [mysqld]
> 1079 con- S      3:11.80 [mysqld]
> 1079 con- S      4:09.88 [mysqld]
> 1079 con- S      0:03.67 [mysqld]
> 
> 
> Strange?
> 
> Greetings,
> O.K.
> 
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