gettimeofday

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Is there a safe way to call gettimeofday() from a Xenomai real time thread?

I\'m running a Xenomai real time thread that sometimes needs to call gettimeofday(), in order to find out what the current time is according to ptpd.[详细]

2023-03-18 08:47 分类：问答
Accurate Timestamps using gettimeofday and localtime

I\'m attempting to monitor system time elapsed across multiple applications and data paths via gettimeoday and localtime. In this example, I want to grab the system time (microsecond percision) right[详细]

2023-03-04 09:11 分类：问答
error when passing pointer to struct to function in c

I\'m trying to pass pointers to two struct timevals to a function that would output the elapsed time between the 开发者_JAVA百科two in a C program. However, even if I dereference these pointers, nvcc[详细]

2023-02-24 16:54 分类：问答
gettimeofday - explanation of the exact struct timeval fields' meaning

I\'m trying to write a simple function in C that would calculate the difference between two moments in nanoseconds. To do this, I thought of using the function gettimeofday, which updates the given st[详细]

2023-02-12 19:07 分类：问答
date uses gettimeofday?

When I do: date system call on freeBSD, does it internally use gettimeofday ? Another que: how do I know where the code of \"date\" command sitting开发者_StackOverflow社区 on the system?[详细]

2023-02-03 19:13 分类：问答
logical time versus physical time in ubuntu linux

i am measuring physical time between two events like this: #include <time.h> #include <sys/time.h>[详细]

2023-01-21 02:40 分类：问答
millisecond-accurate benchmarking in C++?

I do not really wish to profile because I was wanting to do many different small benchmarks on different simple functions. For the life of me I cannot find a way to record the amoun开发者_StackOverflo[详细]

2023-01-17 10:18 分类：问答
Strange results while measuring delta time on Linux

Update: fixed delta calculations in code, still the issue remains Folks, could you please explain why I\'m getting very strange results from time to time using the following code:[详细]

2022-12-31 07:58 分类：问答
Measuring execution time of selected loops

I want to measure the running times o开发者_Go百科f selected loops in a C program so as to see what percentage of the total time for executing the program (on linux) is spent in these loops. I should[详细]

2022-12-28 11:11 分类：问答
how to use gettimeofday() or something equivalent with Visual Studio C++ 2008?

Could someone please help me to use gettimeofday() function with Visual Studio C++ 2008 on Windows XP? here is a code that I found somewhe开发者_Python百科re on the net:[详细]

2022-12-24 19:22 分类：问答