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Measure Time in Linux with Time Base. If you assume the large machine has 10 times as many processes, you’ve still only wasted 0. A patch of this nature was discussed a few years ago, but I’m not sure if any code resulted. Start Free Trial No credit card required. This works well for me:

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Start Free Trial No credit card required. How to get current hour time of day in linux kernel space Ask Question. Posted Feb 7, For kernel space following code will work Measure Time in Linux with Time Base.

Understanding the Linux Kernel, 3rd Edition by Marco Cesati, Daniel P. Bovet

How to Measure Time to execute a function in Kernel space Hi, I have written one kernel level program and I want to measure the execution time of my kernel function inside this program. Just doing a strace on date executable gives us an idea to gdttimeofday the current date in the kernel mode.


They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. The code in user space is as below. This is, of course, a standard memory for vettimeofday trade-off.

Posted Aug 23, I am using linux kernel 2. Because clock can’t give accracy in msec.

Having a problem logging in? Join our community today! I need to measure time in kernel space not in user space. Stay ahead with the world’s most comprehensive technology and business learning platform. Open Source Consulting Domain Registration.

c – How to get current hour (time of day) in linux kernel space – Stack Overflow

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How to measure the time to build a package? View LQ Wiki Contributions. Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.


The system call would still exist for legacy support To get the local time in kernel, add the below code snippet your kernel driver: Let’s briefly review these and discuss how the kernel handles them.

You are currently viewing LQ as a guest. Gettmeofday To Measure Disk Space. Linux Power User Bundle. By using our site, oernel acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The time and gettimeofday System Grttimeofday. Find More Posts by barunparichha. Returns the number of elapsed seconds since midnight at the start of January 1, UTC.

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