SUMMARY: CPU utilization gives spikes in every 5 min.

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Date: Thu, 26 Feb 2004 16:01:34 +0530
To: <sunmanagers@sunmanagers.org>

Hi All;

Thanks a lot for all who replied. Finally the problem was fixed by
applying latest patch.

I am sorry for delay in posting as this machine was huge and I took
these many days to actually apply the solution.

Good day.

Thanks & Regards;
Ashish Nabira
" Work is Worship."
Ph: +91 120 2562842 Etxn:4877
Mobile: +91 9811907768

-----Original Message-----
From: Gregory Shaw [mailto:shawga@unix.stortek.com]
Sent: Tuesday, February 17, 2004 1:45 AM
To: Ashish Nabira
Subject: Re: CPU utilization gives spikes in every 5 min.

Look into your cron entries to be sure that some clever user isn't
doing a cron job every 5 minutes.

On Feb 16, 2004, at 7:32 AM, Ashish Nabira wrote:

> Hello Gurus;
>
> I have a sun machine having 12 processors, 53GB of RAM. It's giving
> spikes in CPU utilization in every 4-5 min. I also observed that ,
this
> behaviour increases in 15-20 days after rebooting and goes upto 90-95
%
> utilization spikes. It's mainly "sys" , i.e kernel which is consuming
> the CPU cycles. Is it related to OS misbehaving?
> Help is appreciated and I will summarize.
>
> Here is the sar o/p
>
> # sar 10 50
>
> SunOS cds11744 5.7 Generic_106541-17 sun4u 02/16/04
>
> 04:35:06 %usr %sys %wio %idle
> 04:35:16 0 2 0 98
> 04:35:26 0 1 0 99
> 04:35:36 0 1 0 99
> 04:35:47 0 1 0 98
> 04:35:57 0 1 0 99
> 04:36:07 0 1 0 99
> 04:36:17 0 2 0 98
> 04:36:27 0 1 0 99
> 04:36:37 0 1 0 99
> 04:36:47 0 1 0 98
> 04:36:57 0 1 0 99
> 04:37:07 0 1 0 99
> 04:37:17 0 2 0 98
> 04:37:27 1 36 0 63
> 04:37:37 0 44 0 56
> 04:37:47 0 45 0 55
> 04:37:57 0 44 0 56
> 04:38:07 0 2 0 97
> 04:38:17 0 2 0 98
> 04:38:27 0 1 0 99
> 04:38:37 0 1 0 99
> 04:38:47 0 2 0 99
> 04:38:57 0 1 0 99
> 04:39:07 0 1 0 99
> 04:39:17 0 2 0 98
> 04:39:27 0 1 0 99
> 04:39:37 0 1 0 99
> 04:39:47 0 1 0 99
> 04:39:57 0 1 0 99
> 04:40:07 0 2 0 98
> 04:40:17 0 2 0 98
> 04:40:27 0 1 0 98
> 04:40:37 0 2 0 98
> 04:40:47 0 2 0 98
> 04:40:57 0 1 0 98
> 04:41:07 0 2 0 98
> 04:41:17 0 2 0 98
> 04:41:27 0 1 0 99
> 04:41:37 0 1 0 99
> 04:41:47 0 2 0 98
> 04:41:57 0 1 0 99
> 04:42:07 0 1 0 99
> 04:42:17 0 2 0 98
> 04:42:27 1 38 0 61
> 04:42:37 0 43 0 57
> 04:42:47 0 44 0 56
> 04:42:57 0 43 0 57
> 04:43:07 0 2 0 98
> 04:43:17 0 2 0 98
> 04:43:27 0 1 0 99
>
> Average 0 8 0 92
>
>
> # top
>
> load averages: 6.32, 3.00, 2.23
> 06:22:38
> 94 processes: 90 sleeping, 1 zombie, 3 on cpu
> CPU states: 51.2% idle, 0.1% user, 48.7% kernel, 0.0% iowait, 0.0%
> swap
> Memory: 56G real, 44G free, 136M swap in use, 123G swap free
>
> PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND
> 26135 root 1 0 0 2448K 2064K cpu14 1:55 3.92% top
> 26545 root 1 0 0 936K 720K cpu22 0:00 0.09% df
> 923 root 1 58 0 9408K 5000K sleep 45:18 0.03% scopeux
> 26405 root 4 48 0 3864K 3240K sleep 0:00 0.03% perl
> 1036 root 12 58 0 2848K 2536K cpu4 5:09 0.01% mibiisa
> 14673 root 1 59 0 1920K 1400K sleep 0:35 0.01% rpc.rstatd
> 1090 root 11 20 0 12M 6288K sleep 0:34 0.01% rep_server
> 795 root 1 58 0 5624K 4728K sleep 0:31 0.00% jre
> 806 root 1 59 0 6848K 5352K sleep 0:15 0.00% jre
> 14758 gottsch 1 58 0 5688K 4936K sleep 0:09 0.00% Xvnc
> 26383 root 1 40 0 1792K 1352K sleep 0:00 0.00%
> pwc_fsmon.sh
> 26544 root 1 48 0 992K 928K sleep 0:00 0.00% df
> 673 root 6 58 0 7720K 7176K sleep 8:10 0.00% automountd
> 868 root 5 58 0 3064K 2440K sleep 2:16 0.00% mountd
> 814 root 1 59 0 2344K 1704K sleep 1:31 0.00% nmbd
>
> ===============================================
>
>
> Thanks & Regards;
> Ashish Nabira
> " Work is Worship."
> Ph: +91 120 2562842 Etxn:4877
> Mobile: +91 9811907768
> _______________________________________________
> sunmanagers mailing list
> sunmanagers@sunmanagers.org
> http://www.sunmanagers.org/mailman/listinfo/sunmanagers
>
-----
Greg Shaw Phone: (303) 673-8273
IT Architect, Information Systems Fax: (303) 673-2733
Storage Technology Corporation
1 StorageTek Drive MS 4382 shawga@vinson.stortek.com (work)
Louisville CO 80028-4382 shaw@fmsoft.com (home)
"When Microsoft writes an application for Linux, I've Won." - Linus
Torvalds
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