ProgrammingThis forum is for all programming questions.
The question does not have to be directly related to Linux and any language is fair game.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
sorry I am a linux newbie ,
I want to reference the extern variable "jiffies" value updated by kernel
in my programming code , but I found error message at compiled time , I don't know which header files should be included correctly, or maybe some where goes wrong . Can someone teach me how to reference the "jiffies" anywhere in my code !!
help would be greatly appreciated.
Thank you in advance
result = gett();
printf("result is %d\n", result);
printf("jiffies %.3lg \n", jiffies);
puts("puts multi a & b");
INCLUDE = /usr/src/linux/include/
TARGET = test
CC = gcc
SRC = test.c
So if I want to estimate how long a code segment or a single function takes when called , by what manner or functions is recommanded while I can get the estimated time from entring it to leaving it , measured in micro second or even precisely ?