how to find the resolution of setitimer()?

I needed a high resolution timer (at least having micro-second level resolution) and i found setitimer() can be set in 开发者_StackOverflowmicro-seconds level.

When is it more appropriate to use gethrvtime() instead of gethrtime()

Manpage for gethrtime() mentions another flavor of this call, which is gethrvtime(), and explains that this is the 开发者_高级运维virtual time of a LWP. I am trying to understand the use case that wou

How can I get the Windows system time with millisecond resolution?

How can I get the Windows system time with millisecond resolution? If the above is not possible, then how can I get the operating system start开发者_运维百科 time? I would like to use this value toget

High-resolution timer for iPhone?

I\'m looking for high-resolution timing code for iPhone, in order to do some performance timings.I\'d like to write code like this:

旧城梦呓的提问:DNF《地下城与勇士》游戏异常？