Getting the CPU USAGE

hi !
I want to get the CPU USAGE of the entire system.Is there any command in JAVA to get this.
I don't want the CPU USAGE of a particular process but I want the CPU USAGE of the whole system.
Kindly reply if any one knows it.
Bye
Srinu.

Take a look at...
http://www.javaworld.com/javaworld/javaqa/2002-11/01-qa-1108-cpu.html?
N35Sy

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How do you get the CPU Usage in Linux

This is a link of an example in WIN32:
http://www.javaworld.com/javaworld/javaqa/2002-11/01-qa-1108-cpu.html
It notes that UNIX environments should use getrusage(), and that is all it says in regards to UNIX. The code I have attempted to use looks like this:
#include <sys/resource.h>
#include <sys/time.h>
#include "CPU.h"
#include "jawt_md.h"
#include "jawt.h"
struct rusage usage;
int ret;
struct timeval val;
struct timeval val2;
JNIEXPORT jlong JNICALL Java_CPU_getProcessCPUTime (JNIEnv * env, jclass cls)
   ret = getrusage(RUSAGE_SELF,&usage);
   val = usage.ru_stime;
   val2 = usage.ru_utime;
   return val2.tv_usec;
}My problm is that I don't think it is right...since the value returned is always the same no matter what the CPU usage is. same for if I used val instead of val2.
Any Ideas?

In Linux, you can read /proc/uptime. It does NOT give you the load averages that the command uptime gives. It gives you numerically the amount of time the CPU was idle vs how much time it was spent doing something. You need to read these two floating point numbers one every second, or once every 5 or 10 seconds then do the delta on the change: The maths are as follows:
Read the file in twice in 5 seconds, parse into two floats/doubles:
double[] last; // the first read of the file
double[] rect; // the latest read of the file
double ld = last[1] - last[0];
double rd = rect[1] - rect[0];
double cpu = (1.0d-(rd/ld)) * 100.0d;This should print the CPU percentage in Linux for that given time frame (5 second updates).

Is there any Vi for getting the CPU and Memory usage of the Local as well as Remote System

Is there any Vi for getting the CPU and Memory usage of the Local as well as Remote System

Find the attachment(LV8.5) for local machines.
You can use shared variables to monitor the remote machine's usage.
Attachments:
Task Monitor 85.vi ‏25 KB

[svn:fx-trunk] 7830: Update ASDoc on the new backgroundFrameRate property to WindowedApplication , to by default reduce the CPU usage in cases where an app is not 'active'.

Revision: 7830
Author:   [email protected]
Date:     2009-06-14 15:57:29 -0700 (Sun, 14 Jun 2009)
Log Message:
Update ASDoc on the new backgroundFrameRate property to WindowedApplication, to by default reduce the CPU usage in cases where an app is not 'active'.
Bugs: SDK-21135
Reviewer:
QE Notes:
Ticket Links:
    http://bugs.adobe.com/jira/browse/SDK-21135
Modified Paths:
    flex/sdk/trunk/frameworks/projects/airframework/src/mx/core/WindowedApplication.as
    flex/sdk/trunk/frameworks/projects/airframework/src/spark/components/WindowedApplication. as

By the way, I agree with sybrand: you need to tune
your redo log size.
Regards
Ignacio
http://oracledisect.blogspot.com
Ignacio,
The excessive waits on log file parallel write and the related client wait of log file sync may be due to insufficient CPU availability, and may not point at an actual redo log size problem or a problem with the disk speed where the redo is written to disk, especially if there are 3 Oracle instances on the server with a single CPU.
Paraphrased from "Optimizing Oracle Performance":
The log file sync wait event is one of the first events to show increased latencies due to the time a process spends waiting in a CPU wait queue while processing excessive logical IOs.
Kevin Closson wrote a couple blog entries that examined the potential problems of insufficient CPU capacity and its effects on log file parallel write when writing to solid state disks, and even when writing redo was explicitly disabled:
http://kevinclosson.wordpress.com/2007/07/21/manly-men-only-use-solid-state-disk-for-redo-logging-lgwr-io-is-simple-but-not-lgwr-processing/
"Once LGWR loses his CPU it may be quite some time until he gets it back. For instance, if LGWR is preempted in the middle of trying to perform a redo buffer flush, there may be several time slices of execution for other processes before LGWR gets back on CPU..." Fix the CPU problem, and the other significant waits may decrease.
JesusLuvR,
yingkuan's suggestion to look at the SQL statement that performs the 4,365,564 logical IOs, consumes 186.03 CPU seconds, and has an execution time of 225.06 seconds, is likely a very good starting point. You might also want to check the value of the SESSION_CACHED_CURSORS parameter to see if it needs to be adjusted.
Charles Hooper
IT Manager/Oracle DBA
K&M Machine-Fabricating, Inc.

It has been only about a month that i bought my macbook pro 15 but it is heating up really fast on the left side even when the cpu usage is only 10%...i'm worried if this is a problem of the hardware.

it has been only about a month that i bought my macbook pro 15 but it is heating up really fast on the left side even when the cpu usage is only 10%...i'm worried if this is a problem of the hardware?

The way something "feels" is very subjective. We would need to know your actual temps. You can install the free iStat Pro widget which is available as a download directly from Apple:
http://www.apple.com/downloads/dashboard/status/istatpro.html
Let us know what CPU temps you're seeing at the time you feel your machine is hot. As you indicated your CPU usage was only 10%, that would imply that you already know that heavy CPU usage would be one cause for your machine to be running on the warm side... but that doesn't seem to be the cause here.

Methods to reduce the CPU Usage for painting the image

Hi,
I have developed an application to view images from an IP camera. By this I can simualtaneously view images from about 25 cameras. The problem is that the CPU Usage increases as the no of player increases. My Player is JPanel. which continuously paints the images from camera. The method 'paintImage' is called from another thread's run method. This thread is responsible for taking jpeg images from IP camera.
Here is the code for this.
public void paintImage(Image image, int fps) {
try {
int width = this.getWidth();
addToBuffer(image);
currentImage = image;
Graphics graphics = this.getGraphics();
if (isRunning && graphics != null) {
   graphics.drawImage(image, 0, 0, getWidth(), getHeight(), this);
   if(border ==true){
    graphics.setColor(Color.RED);
                      graphics.drawRect(0,0,getWidth()-1, getHeight()-1);
   graphics.setColor(Color.white);
   graphics.setFont(new Font("verdana", Font.ITALIC, 12));
   graphics.drawString("FPS : " + fps, width-60, 13);
   this.fps = fps;
   if (isRandomRecord) {
    graphics.setColor(new Color(0, 255, 0));
    graphics.fillArc((getWidth() - 10), 5, 10, 10, 0, 360);
} catch (Exception e) {
e.printStackTrace();
Can someone please help me to solve this problem so that the CPU usage can be reduced.

Can you give me more detail information about how to use
an automated profiling tool You run it and excercise your app. Then it presents stats on number of times each method was called and time spent in each method, plus other stuff. Using those two stats you can zero in on the areas that are most likely to yield resullts.

NI HyperTrend Control raises the CPU usage of NI Citadel DB and freezes it.

When a VI uses NI HyperTrend Control to fetch data from NI Citadel DB, the CPU usage of citadel is raised up to 10% and stops working.
I don't know what "stops working" means since my coworker told me so.
How can the control be prevented from freezing citadel?

Jeff.St wrote:
Hey iCat,
Does the Trace View in MAX work?
What version of LabVIEW are you running?
Can you run the Hyper Trend control without linking it to a particular trace?
Can you use the Hyper Trend control without starting your VI?
Best,
1) Does the Trace VIEW in MAX work?
yes with 3 signals(traces?)
2) What version of LabVIEW are you running?
9.0 SP1
3) Can you run the Hyper Trend control without linking it to a particular trace?
yes
4) Can you use the Hyper Trend control without starting your VI?
yes
5) And he has another question.
Please refer to the attached image.
For now, if he wants to put Va/Vb/Vc in Y axis of a hyper trend control, he has to do it in the front panel.
He wants to put it in Y-axis via a property node in the block diagram.
Is it possible?
Attachments:
hypertrendcontrol.png ‏46 KB

Why is the CPU usage different ? I used LOAD_BALANCE option.

I used a oracle 11.2.0.2 in RAC 2 nodes.
And I used LOAD_BALANCE option in the WAS pool configuration
jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.10.118)(PORT=1522))(*LOAD_BALANCE=YES*)(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=NOFFICE)))
But the CPU usage is different between two system. Usually it is 6:4, Sometimes it is 7:3.
Is it normal?
I want to a balance in CPU Usage (5:5).
If it is the better solution about a Load balance. i want to know it.

You are partially correct which is another way of saying you are incorrect too.
There are two types of load balancing ... server side and client side. There are also questions with respect to how the client is connecting, we don't know, whether the session load is identical, etc. which the OP has not stated.
The only thing I can absolutely say at this point is that what the OP has seen is normal and I can't see any reason why, unless the skew is very large and very permanent, anyone should care.
To the OP: Let's step back from the "what I want" statement and go to the basis of your inquiry: "Why do you care? Please provide a business reason and cite specific performance metrics, from your system, showing the problem you are trying to address. Then perhaps we can help you.

Get the battery usage of single application programmatically in ios7 and later

Get the battery usage of single application programmatically in ios7 and later

Not natively with iOS. you might check the app store for a battery monitoring app, but to be honest, it you find one that claims to be able to do this, I'm nopt sure I would trust it.

Is there any function module getting the cpu type?

Is there any function module getting the cpu type?

I guess the database server...
I would like to get the SAP system cpu type as done in transaction st06 under system information.
Thanks.

[svn:fx-trunk] 7753: Adding backgroundFrameRate property to WindowedApplication, to by default reduce the CPU usage in cases where an app is not 'active'.

Revision: 7753
Author:   [email protected]
Date:     2009-06-11 12:29:44 -0700 (Thu, 11 Jun 2009)
Log Message:
Adding backgroundFrameRate property to WindowedApplication, to by default reduce the CPU usage in cases where an app is not 'active'.
Bugs: SDK-21135
Reviewer: Ryan, Darrell
QE Notes: Test needs to be written for this new API. PARB has tentatively approved, will update spec here: http://opensource.adobe.com/wiki/display/flexsdk/Spark+WindowedApplication
Doc Notes: Needs to be documented and ASDoc scrubbed.
Ticket Links:
    http://bugs.adobe.com/jira/browse/SDK-21135
Modified Paths:
    flex/sdk/trunk/frameworks/projects/airframework/src/mx/core/WindowedApplication.as
    flex/sdk/trunk/frameworks/projects/airframework/src/spark/components/WindowedApplication. as

Hi,
when the pageFlow scope map is preserved on task flow exit then this is a bug. Can you file it ?
Frank

Can't get the CPU utilization above 52%

Hi all,
I have an Intel i7 950 CPU based PC with Windows 10 TP on it which, no matter what, I cannot bring to 100% CPU utilization. While taking the attached screenshot, I was running prime95.exe.
I have tested the same scenario on the same computer running Windows 8/8.1 and got the same result. However, when doing the same thing under Windows 7, CPU utilization went up to 100%.
Anybody has any idea why this happens? Is it a different default setting somewhere (probably in registry)?
Since I have this fast machine I would like to be able to use it at its full strength - the way things are now, my old Quad core 2 GHz PC is MUCH faster than this 8 core 3 GHz one (as I measured in several tests consisting of transcoding videos).
Thanks for any pointers!

Hi VikTak-9b,
How did you get the CPU utilization information ?Are you getting the information from the task manager ?
"I have tested the same scenario on the same computer running Windows 8/8.1 and got the same result. However, when doing the same thing under Windows 7, CPU utilization went up to 100%.
Anybody has any idea why this happens? Is it a different default setting somewhere (probably in registry)?"
I am a little confused here .According to my understanding ,the number is smaller the performance of the machine is higher when the other conditions are the same .
Here is a link may be useful for us to understand the CPU Utilization for Performance Analysis
Interpreting CPU Utilization for Performance Analysis
http://blogs.technet.com/b/winserverperformance/archive/2009/08/06/interpreting-cpu-utilization-for-performance-analysis.aspx
Best regards
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

What is the best version of Firefox to be running at this time to get the best usage?

When I started using Firefox I updated as the updates came out and then I noticed that problems would come up saying this or that will only run with this or that version. So, to get the best usage of firefox, which is the most universal version that is being used at this time.

3.6.x is the last version for 10.5.8.
http://www.mozilla.com/en-US/firefox/all-older.html

How to get the CPU time of a query?

Hello all, will someone pls tell me how to get the CPU time instead of Elapsed Time of a query?
Thanks.

If i am not wrong, Jonathan Lewis blogged about the changed behaviour.
Here is short test:
SQL> CREATE OR REPLACE FUNCTION Cpu RETURN NUMBER IS
2    Retval NUMBER;
3 BEGIN
4    SELECT m.VALUE
5    INTO      Retval
6    FROM      V$statname s, V$mystat m
7    WHERE s.Statistic# = m.Statistic#
8    AND       NAME = 'CPU used by this session';
9    RETURN Retval;
10 END;
11 /
Function created.
cat cpu_test.sql
DECLARE
TYPE t IS TABLE OF NUMBER;
tt t;
BEGIN
dbms_output.put_line(cpu());
SELECT COUNT(*) over(PARTITION BY owner) BULK COLLECT INTO tt FROM all_objects;
dbms_output.put_line(cpu());
SELECT COUNT(*) over(PARTITION BY object_type) BULK COLLECT INTO tt FROM user_objects;
dbms_output.put_line(cpu());
SELECT COUNT(*) over(PARTITION BY owner) BULK COLLECT INTO tt FROM dba_objects;
dbms_output.put_line(cpu());
END;
SQL> select * from v$version
2 /
BANNER
Oracle9i Enterprise Edition Release 9.2.0.6.0 - Production
PL/SQL Release 9.2.0.6.0 - Production
CORE    9.2.0.6.0       Production
TNS for Linux: Version 9.2.0.6.0 - Production
NLSRTL Version 9.2.0.6.0 - Production
SQL> @cpu_test
0
0
0
0
PL/SQL procedure successfully completed.
SQL> @cpu_test
106
106
106
106
PL/SQL procedure successfully completed.
SQL> select * from v$version
2 /
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Prod
PL/SQL Release 10.2.0.3.0 - Production
CORE    10.2.0.3.0      Production
TNS for Linux: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production
SQL> set serveroutput on
SQL> @cpu_test
1
129
130
145
PL/SQL procedure successfully completed.
SQL> @cpu_test
145
273
275
290
PL/SQL procedure successfully completed.Best regards
Maxim

Can anybody help me to understand the CPU usage logs

Hello community,
I try to find the faulty machine in our network, but I don`t understand the logfiles. We have many servers which normally work very fast and reliable.
But sometimes we have such a huge cpu usage drain on our server. Nobody knows where it comes from, so I looked in the vsphere web client and looked in the cpu usage logs.
Following you can see two pictures. One is from the main host. It shows only a cpu usage of a maximum of 45 %.
When I look on the vmware machines I can see a cpu usage of more than 150%.
This is something I completely not understand. How is it possible that the main host machine has only a 45% cpu usage and the clients are exploding?
I don`t have set a cpu usage limit in our resource pool.
The next thing is. When I look on the vmmachines, I can not identify the faulty machine. Because when one machine increases the cpu usage many others increase too. Whatever why.
Can somebody explain me the pictures below please:
Thank you for your time
Paul

You don't have any need to understand this code. The complication is due to the registry needing a fixed objectID.
You just need to know the methods of java.rmi.registry.LocateRegistry class. This allows you to start an RMI Registry inside your JVM and give it any TCP port number you like.

Getting the CPU USAGE

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