linux gettimeofday example

C language Settimeofday () function: Setting the current timestampheader file: #include #include To define a function: int settimeofday (const struct Timeval *tv, const struct timezone); Function Description:

Linux library knowledge-general Linux technology-Linux programming and kernel information. The following is a detailed description. Introduction: In xmeeting, for the usb handle, the dynamic library call method is used. Next I will translate an

This article describes some of the timing-related problems and solutions in the Linux system. Because in the course of study and research, we often need to count the time of program or program, evaluate their performance. So these problems are often

Reprint Please specify Source: http://blog.csdn.net/luotuo44/article/details/39374759This article mainly deals with Linux time types, time functions, and sleep functions provided by Linux.the time type and the corresponding function:time_t:The most

precise timing in microseconds Long Long l1,l2,l3; Timeval TV1; Take a Time Gettimeofday (&tv,null); L1 = tv.tv_sec*1000*1000 + tv.tv_usec; Execute some code, such as algorithm 1 ... Second time taken Gettimeofday (&tv,null); L2 = tv.tv_sec*1000*1

3.3.1. About the concept of time 3.3.1.1, GMT (1) GMT is Greenwich Mean Time, which is the local area of Greenwich. (2) What is the meaning of GMT time? "Use Greenwich local time as global international time" to describe the time of global events,

First, prefaceFrom an application perspective, there are three types of time-related services that the kernel needs to provide:1, and system time-related services. For example, when you write a record to a database, you need to record the operation

April 23, 2009 In this article, we summarize five experiences based on the main features of multi-threaded programming in Linux to improve the habit of multi-threaded programming in Linux and avoid development traps. In this article, we

From http://blog.csdn.net/outblue/archive/2010/02/04/5288760.aspx Dashboard January 2007 issueMehul PatelUsing uinput driver in Linux-2.6.x to send user input Dashboard January 2007 issueUsing uinput driver in Linux-2.6.x to send

http://www.ibm.com/developerworks/cn/linux/l-cn-mthreadps/BackgroundMultithreaded APIs on Linux platforms have subtle and cryptic differences in the multi-threaded API that corresponds to other platforms, such as Windows. Not paying attention to