Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: This application is eating up the CPU
Operating Systems Solaris This application is eating up the CPU Post 302084676 by izy100 on Friday 11th of August 2006 10:19:36 PM
Old 08-11-2006
See my reply inline:

If my application is not stressing the CPU , why it consumes 50 % in prstat.
>> Even if it is 100% CPU util, it doesn't mean that you don't have enough CPU resources. You run out of cpu ONLY when there is a queue of runnable processess waiting for CPU time slice. In short, 100% CPU util means the CPU is working hard for your processes (doesn't mean there is not enough).


In all the other servers where I have same application installed it consumes only 5 -10% of CPU. Even in this bad server initially when i start it uses 5-10% of CPU when I start doing some action in the IdM application it rises to 50% and is slower.
>> See my reply above. 50% does not mean much.

The other inhouse applications deployed on the same server work well even if the CPU consumption is 50 %.
>> Exactly. If other application on the same server has no performance problem running, this means you have ample CPU resources on the SAME server.

If javasrvr consume 5-10% , the application works fine as it is in other servers, but when it rises to 50 % the application stops working in this bad server.
>> My guess is there is some performance bug with a particular function that is triggering the workload. You have to talk to the developer of the application and get them to draw some workflow diagram to understand where is the problem.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Hosting Service Eating Space

Dear Group, I am not much used to UNIX. The company I am hosting wiht refuses to help me with this trouble, but as near as I can see, it is NOT my trouble. I have had this service for over a year. I just renewed for another year and all of a sudden the disk quota has been disappearing. I... (3 Replies)
Discussion started by: cindy
3 Replies

2. UNIX for Dummies Questions & Answers

Eating memory

Hello I run Gentoo Linux on my computer: Athlon XP 1700+ ~1,46 mhz 512 mb ram After a while, my computer works really slow, and when I cat /proc/meminfo, I see that I only have 8mb of 512 mb free! How is that possible? I dont run anything I can think of that eats that amount of... (4 Replies)
Discussion started by: Maestin
4 Replies

3. Shell Programming and Scripting

swap space and cpu usage for an application

Hi, How do i get the swap space used and cpu usage for a particular application ? thanks una (2 Replies)
Discussion started by: una
2 Replies

4. AIX

Application high CPU load

after a long period of running, the network application's CPU load in our syst em increase slowly, the failed at the end. we use "truss" tool to trace the process, found that it processes something like "semop" ,"semctl","thread_waitlock","kread" kernel call . The trace log file looks like the... (0 Replies)
Discussion started by: Frank2004
0 Replies

5. What is on Your Mind?

What are you eating ?

Hi, guys ! I was wondering... how many of you are vegetarians ? and why ? (31 Replies)
Discussion started by: Sergiu-IT
31 Replies

6. Programming

Application occupying CPU resources

Dear all, I have a pro c application running in the unix environement. This pro c program actually trigger by a java application from sun workstation. Recently, when we released a new proc c application and notice that the application occupying the CPU resources even through we check that the... (1 Reply)
Discussion started by: ghho
1 Replies

7. Shell Programming and Scripting

[bash] IF is eating my loops

Hi! Could someone explain me why the below code is printing the contents of IF block 5 times instead of 0? #!/bin/bash VAR1="something" VAR2="something" for((i=0;i<10;i++)) do if(($VAR1=~$VAR2)) then echo VAR1: $VAR1 echo... (3 Replies)
Discussion started by: machinogodzilla
3 Replies

8. Programming

C++ application: how to access AIX process and cpu information?

Hi, may be this is an AIX noob question: my current C++ application runs on Linux and is quite memory consuming. Therefore, the application writes a logfile after it has finished containing memory information, CPU information, information on the running other processes besides my application... (0 Replies)
Discussion started by: DarthVader77
0 Replies

9. Shell Programming and Scripting

awk eating too much memory?

Hi all, using AWK iam sorting auniq data from a file the file size is 8GB, while running that script , the over all cpu usage will be nearly 8 how to avoid this ?? any other alternate is available for awk? Thanks in Advance Anish kumar.V (13 Replies)
Discussion started by: anishkumarv
13 Replies

10. AIX

AIX core,cpu and application list

Hi All , I am trying to pull out below things from AIX machine (any type) 1. number of physical processor 2. number of logical processsors 3. Total number of processors (physical plus logical) 4. total number of cores 5. list of installed applications with versions and vendor name ... (1 Reply)
Discussion started by: omkar.jadhav
1 Replies

LEARN ABOUT XFREE86

chcpu

CHCPU(8)						       System Administration							  CHCPU(8)

NAME

       chcpu - configure CPUs

SYNOPSIS

       chcpu -c|-d|-e|-g cpu-list
       chcpu -p mode
       chcpu -r|-h|-V

DESCRIPTION

       chcpu  can  modify  the state of CPUs.  It can enable or disable CPUs, scan for new CPUs, change the CPU dispatching mode of the underlying
       hypervisor, and request CPUs from the hypervisor (configure) or return CPUs to the hypervisor (deconfigure).

       Some options have a cpu-list argument.  Use this argument to specify a comma-separated list of CPUs.  The list can contain  individual  CPU
       addresses  or ranges of addresses.  For example, 0,5,7,9-11 makes the command applicable to the CPUs with the addresses 0, 5, 7, 9, 10, and
       11.

OPTIONS

       -c, --configure cpu-list
	      Configure the specified CPUs.  Configuring a CPU means that the hypervisor takes a CPU from the CPU pool and assigns it to the  vir-
	      tual hardware on which your kernel runs.

       -d, --disable cpu-list
	      Disable the specified CPUs.  Disabling a CPU means that the kernel sets it offline.

       -e, --enable cpu-list
	      Enable the specified CPUs.  Enabling a CPU means that the kernel sets it online.	A CPU must be configured, see -c, before it can be
	      enabled.

       -g, --deconfigure cpu-list
	      Deconfigure the specified CPUs.  Deconfiguring a CPU means that the hypervisor removes the CPU from the virtual  hardware  on  which
	      the Linux instance runs and returns it to the CPU pool.  A CPU must be offline, see -d, before it can be deconfigured.

       -p, --dispatch mode
	      Set  the	CPU  dispatching mode (polarization).  This option has an effect only if your hardware architecture and hypervisor support
	      CPU polarization.  Available modes are:

		     horizontal  The workload is spread across all available CPUs.
		     vertical	 The workload is concentrated on few CPUs.

       -r, --rescan
	      Trigger a rescan of CPUs.  After a rescan, the Linux kernel recognizes the new CPUs.  Use this option on systems that do	not  auto-
	      matically detect newly attached CPUs.

       -V, --version
	      Display version information and exit.

       -h, --help
	      Display help text and exit.

RETURN CODES

       chcpu has the following return codes:

       0      success

       1      failure

       64     partial success

AUTHOR

       Heiko Carstens <heiko.carstens@de.ibm.com>

COPYRIGHT

       Copyright IBM Corp. 2011

SEE ALSO

       lscpu(1)

AVAILABILITY

       The  chcpu  command  is	part  of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils
       /util-linux/>.

util-linux							     July 2014								  CHCPU(8)
All times are GMT -4. The time now is 03:29 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy