the CPU time of each process

[lucashuang]

How to get the CPU time of each process.

[Bill Hassell · Accepted solution]

Type this command line as shown:

UNIX95=1 ps -eo pcpu,pid,args | sort -rn

The processes consuming the most CPU percentage are shown at the top of the list. The top command will show you a similar metric.

[lucashuang]

Dear Bill,
Appreciate your reply.
I had tried your suggestion.

UNIX95=1 ps -eo pcpu,pid,args | sort -rn

you say pcpu is the same with "top" command.
What does this colume mapping ? "%WCPU" or "%CPU" ?

May I do some explain for these cases?

Case A
UNIX95=1 ps -eo pcpu,pid,args | sort -rn |grep 10957
4.82 10957 fglrun /u/tiptop/csf/4gi41/csfra01

Explain A: pid:10957 use 4.82% of last cpu time interval.
If cpu time interval is 60 sec then this pid use 60*4.82% secs.


Case B
ps -ef|head -n 1 ;ps -ef | grep 10957
UID PID PPID C STIME TTY TIME COMMAND
s0486 10957 10956 30 14:41:28 pts/tKb 0:53 fglrun /u/tiptop/csf/4gi41/csfra01

Explain B:the pid:10957 use total CPU time is 53 min.


Lucas

[Sajjad Sahir]

u can use top command

[Aashique]

HI lucashuang,

Ya from TOP command you can see.
Also you can use the "kmeminfo" script which will tell you the details of each process of cpu usage and memory usage.

Thanks & Regards

Aashique

[Bill Hassell]

Take a look at this link:

http://forums12.itrc.hp.com/service/forums/questionanswer.do?threadId=57634&admit=109447627+1207582693776+28353475

However, top is a crude measure of system performance and becomes quite difficult to interpret with multiple processors. Also, CPU time is misleading except for processes that use almost 100% CPU time. You can have 4 processes running at the same time, each consuming 100% CPU while it is running. But like most multiprocessing systems, these CPU-cbound processes will be interrupted and timeshared with other processes. Thus, logins and vi editing, etc, seems to run at full speed even though more than 100% of CPU time is required.

If you want accurate measurements, get a copy of Glance from HP.

[Lethuillier]

Hi,

An interresting alternative to the use of top :

http://i1.dk/download/isjtop

regards,

[YAQUB_1]

Hi Lucashuang,

U can also check the below URL link:-

http://forums12.itrc.hp.com/service/forums/questionanswer.do?threadId=1220246

Thanks--Yaqub
HP Support!!!