Others have explained why you might sleep for less than you asked for, but didn’t show you how to deal with this. If you need to make sure you sleep for at least n seconds you can use code like: from time import time, sleep def trusty_sleep(n): start = time() while (time() – start < … Read more
You can use: https://github.com/richtr/NoSleep.js Prevent display sleep and enable wake lock in any Android or iOS web browser. Note that the library has some reliability/performance issues on some platforms/browsers. Users have found solutions that are listed in the issue comments and pull requests, but they have not been added since the repo owner appears not … Read more
Sleep() is implemented at the OS level. The processor doesn’t spin when a task/thread/process is sleeping. That particular thread is put on a pending queue (the thread isn’t ready to run) until the time has expired at which point the thread will be placed on the ready to run queue. In the meantime, other threads … Read more
Half a second is 500,000,000 nanoseconds, so your code should read: tim.tv_sec = 0; tim.tv_nsec = 500000000L; As things stand, you code is sleeping for 1.0000005s (1s + 500ns).
sleep infinity does exactly what it suggests and works without cat abuse.
You need to re-factor the code into pieces. This doesn’t stop execution, it just puts a delay in between the parts. function partA() { … window.setTimeout(partB,1000); } function partB() { … }
Declare Sub Sleep Lib “kernel32” Alias “Sleep” _ (ByVal dwMilliseconds As Long) Use the following syntax to call the Sleep function: Sub Sleep() Sleep 1000 ‘Implements a 1 second delay End Sub
You do not need to use an anonymous function with setTimeout. You can do something like this: setTimeout(doSomething, 3000); function doSomething() { //do whatever you want here }
you always want to prevent using while loops, especially when you are forcing the code to recheck variables. It wastes CPU resources and slows down your program. I would definitely say the first one.
Your thread is sharing CPU Time with other threads. The Sleep will end as soon as it is your turn again and the kernel notices the sleep time has elapsed, so it is not that accurate. CPU load, process priorities, number of concurrent threads, even from other processes, will have effect upon it.