8 More Discussions You Might Find Interesting
1. Red Hat
Hi,
i am new to linux/RHEL 6.0 and i have two questions.
1) How to get the CPU utilization and Memory Utilization of all Services running currently?
2) How to get the CPU utilization and Memory Utilization of all Applications running currently?
Please help me to find the script.
... (2 Replies)
Discussion started by: nossam
2 Replies
2. AIX
Hi,
i am seeing some strange things on a lpar which we have at this moment.
With nmon i see a process aix_timeout_thread which is using lots of cpu (70-80%, all cpu which is "free" is used). This is a kernel process (for as far i can find out) but i am wondering what is causing this to happen... (5 Replies)
Discussion started by: aixvinnie
5 Replies
3. UNIX for Advanced & Expert Users
Hi Experts,
If a thread running on CPU needs some data from RAM (from near or far RAM) it requests the data (this moment of time is t0) and gets it in moment of time in t1, and continues his work.
Between t0 and t1, while data is transferring from RAM, the thread is goes out from CPU? Is the... (2 Replies)
Discussion started by: sant
2 Replies
4. Shell Programming and Scripting
Hi ,
I am trying to :wall: my head while scripting ..I am really new to this stuff , never did it before :( .
how to find cpu's system high time and user time high in a script??
thanks , help would be appreciated !
:) (9 Replies)
Discussion started by: sushwey
9 Replies
5. Solaris
We are using JAVA program and strange thing is it takes 100% CPU when not in use.
The program function is to stream a file on output port (one direction). It checks one directory and when there is a file in it, starts.
While it is streaming the CPU usage is normal, about 20%.
But, if... (9 Replies)
Discussion started by: orange47
9 Replies
6. UNIX Desktop Questions & Answers
Hi i am a newbie thanks in advance
i have a process which keeps on running but doesn't use any CPU time and doesn't do the functionality which it is suppose to do .
If i kill the process and start the process again then the process kicks in and starts using CPU time and continues to do its... (3 Replies)
Discussion started by: nick1982
3 Replies
7. Shell Programming and Scripting
I thought a program's elapsed time, some program language call it real time, should be the time of a program from start to finish. And it should be equal or longer than CPU time. This is true for the most of the cases. However, I do see some of my programs CPU time is longer than Elapsed time. ... (1 Reply)
Discussion started by: visio2000
1 Replies
8. HP-UX
Hi,
I am loking for a c++ function that calculate CPU time under HP-UX
Thank you (1 Reply)
Discussion started by: limame
1 Replies
clock(3C) Standard C Library Functions clock(3C)
NAME
clock - report CPU time used
SYNOPSIS
#include <time.h>
clock_t clock(void);
DESCRIPTION
The clock() function returns the amount of CPU time (in microseconds) used since the first call to clock() in the calling process. The time
reported is the sum of the user and system times of the calling process and its terminated child processes for which it has executed the
wait(3C) function, the pclose(3C) function, or the system(3C) function.
RETURN VALUES
Dividing the value returned by clock() by the constant CLOCKS_PER_SEC, defined in the <time.h> header, will give the time in seconds. If
the process time used is not available or cannot be represented, clock returns the value (clock_t) -1.
USAGE
The value returned by clock() is defined in microseconds for compatibility with systems that have CPU clocks with much higher resolution.
Because of this, the value returned will wrap around after accumulating only 2147 seconds of CPU time (about 36 minutes).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
times(2), popen(3C), system(3C), wait(3C), attributes(5), standards(5)
SunOS 5.11 24 Jul 2002 clock(3C)