[CLUE-Tech] Boot-time CPU Work-out

[Richard J. Mancusi]

Thank you - you are absolutely correct.  I did some research and found
a section in "Running Linux" called Managing System Logs that spells
it out.  I think what I have done wrong, is install "everything" on
my laptop.  After all, it isn't a server - perhaps that is a
contributing factor.

The CPU usage of 97 to 100% was strickly for logrotate (per gtop).
As for how long did it run.  I killed it (oops) after 1.45h.  I
think between your pointers and that section in "Running Linux"
I can figure it out.

Thanks again
Rich



Ed Hill wrote:
> On Sun, 2003-02-09 at 07:52, Richard J. Mancusi wrote:
> 
>>System: P4-m 768MB Red Hat 7.3 (load everything)
>>
>>Recently I noticed that approx 8 min after I boot my laptop, the fan
>>comes on high and stays that way for a long time.  This morning I
>>decided to look at Gnome Monitor (gtop).  I found out why - now
>>what can I do about it?
>>
>>PID = 1907    User = root    Pri = 25
>>
>>Size/Resident = 23060 (started small, grew for the first 18m, stopped here)
>>
>>Stat = R    CPU = 97 to 100    Mem = 2.4 to 2.9
>>
>>Time = 1.24h (it is still running as I write this)
>>
>>Cmd = /usr/sbin/logrotate
>>
>>
>>At the bottom of Gnome Monitor it shows the cpu distribution.
>>Initially it was 99+% user.  After approx 45m it changed to
>>approx 15% user and 82% system
> 
> 
> 
> Hi Rich,
> 
> Please take a look at "man logrotate" which will explain what it does. 
> It is normal for logrotate to run periodically and thats a good thing!
> 
> So how long does it take logrotate to execute?  Unfortunately, your
> description doesn't specify whether logrotate is still running of if
> there are other processes that are causing the cpu usage.  If logrotate
> runs for more than an hour, something is probably the matter and you
> should look into the logs.  Perhaps you have some process or kernel
> driver thats writing an excessive amount of information to the system
> logs?  That could explain why it takes logrotate so long to handle them.
> 
> So what processes are running and what are the contents of the /var/log/
> directory?  For instance how big is /var/log/messages?
> 
> hth,
> Ed
> 
>