Sponsored Content
Operating Systems Linux Red Hat lightweight function for measuring time ( better than clock_getime ) Post 302539893 by manustone on Tuesday 19th of July 2011 04:29:01 AM
Old 07-19-2011
Hi
after few research I didn't find a better function than clock_getime or a specific function for RedHat distro BUT I can tell you that in the 2.6 kernel there are new ID available for clock_getime.
If you use version 2.6.28 you can use a new clock type, CLOCK_MONOTONIC_RAW
If you use version 2.6.32 you can use a new clock type, CLOCK_REALTIME_COARSE and CLOCK_MONOTIC_COARSE.

Someone did some tests with it and they seem 5 times faster than the code used by CLOCK_MONOTONIC and CLOCK_REALTIME.

Best Regards
MNSTN
 

7 More Discussions You Might Find Interesting

1. Programming

Measuring System Call Time

Can anyone please help me in measuring the system call timings! How do I do it if I have to measure the timing of an operation, say getpid system call. What different functions can I use for that and what would be the difference using each of them? Thanx! (3 Replies)
Discussion started by: chacha
3 Replies

2. Programming

C time in milliseconds function.

I need a c function which return the time in: hour min sec and mil sec I am writing on unix os. (3 Replies)
Discussion started by: kamil
3 Replies

3. Shell Programming and Scripting

time function

Hi, I would like to display the exact time taken to complete running a particular tool or function or program to user I don't know the exact time functions in unix, please help me thanks in advance Example: $test.ksh output should be The... (10 Replies)
Discussion started by: hsekol
10 Replies

4. Programming

function time

Hello I have problem with function 'time' to test my program for file copying . How to run the function in my source code ? I try something like that: system("time"); < -- but this don't working (2 Replies)
Discussion started by: scotty_123
2 Replies

5. Shell Programming and Scripting

Nawk Time Function

Hi All, I am using solaris and nawk. Is there any time function in nawk which is simliar to the shell `date` function ? Can any experts show any examples? (4 Replies)
Discussion started by: Raynon
4 Replies

6. UNIX for Dummies Questions & Answers

time function

hello everybody! i want to post a question. So, I use the command 'time a.out' to time the duration of the program a.out. The return value of this function was: real 0m4.116s user 0m4.112s sys 0m0.016s What i want is! I try to find a way to get (NOT manually) the value of real time.... (2 Replies)
Discussion started by: nicos
2 Replies

7. Ubuntu

Measuring the correctness of ndelay() function.

I wrote this kernel module to test the correctness of ndelay() function. Kernel mdoule: #include <linux/module.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/time.h> #include <linux/delay.h> static int __init initialize(void) { ktime_t start, end; s64... (1 Reply)
Discussion started by: BHASKAR JUPUDI
1 Replies
RHNPLUGIN(8)							   Red Hat, Inc.						      RHNPLUGIN(8)

NAME
rhnplugin - Spacewalk/Red Hat Satellite support for yum(8). DESCRIPTION
rhnplugin provides Spacewalk support for yum(8) via its plugin architecture. A system registered with Spacewalk will be able to update and install packages from Spacewalk. FILES
/etc/sysconfig/rhn/up2date The common configuration file used by RHN client programs. /etc/yum/pluginconf.d/rhnplugin.conf A file containing plugin specific configuration options. SEE ALSO
yum(8), rhn_check(8), rhn_register(8), rhnplugin.conf(5), up2date(5). AUTHORS
James Bowes <jbowes@redhat.com> and Peter Vetere <pvetere@redhat.com>. BUGS
Report bugs to <http://bugzilla.redhat.com>. COPYRIGHT
Copyright (C) 2006 Red Hat, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. Linux 2006 November 13 RHNPLUGIN(8)
All times are GMT -4. The time now is 09:53 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy