linux c usleep

1:sleep ()The minimum unit of seconds.When using Sleep/ulseep/select, because the thread will go to sleep state, and then wake up, if the single execution problem is not small, if the number of cycles executed more, then the difference is very large.

1. usleep is inaccurate on different hardware platforms, for example, usleep (2*1000). The result is sleep for 10 ms. Is it too much? The test code is as follows: #include #include int main(int argc,char **argv){ struct timeval oldTime, newTime;

Function Name: Sleep Header file: #include //use with top files in VC #include //In the GCC compiler, the header file used differs depending on the version of GCC Function: Execution suspend specified number of seconds Grammar: Unsigned sleep

ArticleDirectory Latency using I/O Ports Latency using a combination of languages Linux accurate time sequence (sleep, usleep, nanosleep) 11:36:48| Category:Linux| Tag:None |Font Size Subscription First of all, I

When writing application-level programs, sometimes you need to delay, what should I do?In the kernel code, we often see such a header file using # include , and thought of calling this directly is OK! But at the time of compiling, we found thatThe

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

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

To port the gettickcount API function in Windows to Linux, you can use the followingCode: Long gettickcount () {tms tm; return times (& TM );} 2,Transplantation of ITOA in Windows and Linux systems As you know, since STL in Linux does not

Description: function name: SleepFunction: Execution hangs for a period of timeUsage: unsigned sleep (unsigned seconds);Using the top file in VC#include In the GCC compiler, the header file used differs depending on the GCC versionThe header files

Test your PHP level questions. We can see this interesting test on UnixReview and share it with you. UnixReview. comMay2007TestYourKnowledgeofPHPbyEmmettDulaneyFrom: www. unixreview. comdocumentss10130 you can see this interesting test on Unix