yup heres the excerpt from raylib

P

Perksey•8/6/23, 6:51 PM

https://github.com/raysan5/raylib/blob/master/src/rcore.c#L5088

P

Perksey•8/6/23, 6:51 PM

cc @baebey

R

ritchie ❤•8/6/23, 6:51 PM

I have two questions

Kkhitiara yup heres the excerpt from raylib

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Perksey•8/6/23, 6:52 PM

this is actually really intelligent, it gets around

nanosleep

nanosleep

nanosleep

nanosleep being like 1ms out by just busy waiting for a certain percentage of the loop and sleeping for the rest

P

Perksey•8/6/23, 6:53 PM

so it gets "almost there" on nanosleep but preserves the accuracy of busy waiting

K

khitiaraOP•8/6/23, 6:53 PM

yeah it looks real smart

K

khitiaraOP•8/6/23, 6:53 PM

i dont understand it

K

khitiaraOP•8/6/23, 6:53 PM

but it looks good

K

King•8/6/23, 6:57 PM

This is why I ended up asking about how to dodge the silk event handler. What I could gather from the magic raylib does is that it checks frametime and kinda sleeps until it's time to do a frame, and that ends up limiting FPS while also keeping cpu low.

K

King•8/6/23, 6:57 PM

So I figured I'd do the same thing with Thread.Sleep(1). Just fire off that whenever frametime goes too low and you kinda sorta get a settable FPS with limited cpu usage

K

King•8/6/23, 6:58 PM

It kinda works... but is really really messy and bouncing all over the place due to sleep not being 1ms but several of them

K

King•8/6/23, 6:58 PM

But at least I have now learned why minecraft's fps slider is so unreliable and microstutter-y

A

Aqua•8/6/23, 6:58 PM

Thread.Sleep

Thread.Sleep

Thread.Sleep

Thread.Sleep is simply not accurate enough to be used as a timer like this

K

King•8/6/23, 6:59 PM

Yeeeeeah... wtb better OS thread scheduler ;-;

A

Aqua•8/6/23, 6:59 PM

the solution is to either use a

SpinWait

SpinWait

SpinWait

SpinWait, which i've found works well, although not at FPS values above 60 the last time I tested

A

Aqua•8/6/23, 6:59 PM

or to just waste cpu cycles, which is the most accurate

P

Perksey•8/6/23, 6:59 PM

so windows does actually have high-resolution sleeping, but every other platform tends to be like 1ms out

PPerksey we're working on an official mechanism in #1599 in response to your feedback (th...

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Perksey•8/6/23, 6:59 PM

before jumping into anything, can you try this out and see what improvement (if any) it makes?

PPerksey before jumping into anything, can you try this out and see what improvement (if ...

K

King•8/6/23, 7:01 PM

Uhm... give me a moment... my code right now is so messy due to the attempt at my own FPS limiter... need to make sure I comment all that out proper xD

K

King•8/6/23, 7:04 PM

Okay so the first problem I'm having is

K

King•8/6/23, 7:04 PM

K

King•8/6/23, 7:05 PM

Am I missing some using?

K

khitiaraOP•8/6/23, 7:05 PM

what dotnet version you using?

K

King•8/6/23, 7:05 PM

7

K

khitiaraOP•8/6/23, 7:05 PM

hmm

K

King•8/6/23, 7:05 PM

I think...

K

King•8/6/23, 7:05 PM

lemmie check

K

King•8/6/23, 7:05 PM

Oh, right... old project

K

King•8/6/23, 7:05 PM

was 6

K

King•8/6/23, 7:06 PM

Set it to 7 and that warning went away, good good

K

khitiaraOP•8/6/23, 7:06 PM

yeah that method was introduced in 7

K

khitiaraOP•8/6/23, 7:06 PM

thats why theres the #if NET7_OR_GREATER in the pr

K

King•8/6/23, 7:08 PM

Hmm... sadly the code doesn't seem to do anything, unless I"m being a dummy

K

King•8/6/23, 7:08 PM

FPS and UPS is still going mad at 5000 according to deltatime

K

King•8/6/23, 7:09 PM

and I did set

const double loopsPerSecond = 500;

const double loopsPerSecond = 500;

const double loopsPerSecond = 500;

const double loopsPerSecond = 500;

K

King•8/6/23, 7:09 PM

And CPU and GPU is going mad

P

Perksey•8/6/23, 7:09 PM

oh i'm stupid

P

Perksey•8/6/23, 7:09 PM

i didn't include the part where you have to reset the timer haha

K

khitiaraOP•8/6/23, 7:09 PM

there needs to be a stopwatch.reset after the if statement closes

K

khitiaraOP•8/6/23, 7:09 PM

before the window.doevents

P

Perksey•8/6/23, 7:09 PM

const double loopsPerSecond = 10000;

Stopwatch loopStopwatch = Stopwatch.StartNew();
window.Initialize();
while (!window.IsClosing)
{
    do
    {
        if (X86Base.IsSupported)
        {
            X86Base.Pause();
        }
    }
    while (loopStopwatch.Elapsed.TotalSeconds < (1 / loopsPerSecond));
    window.DoEvents();
    if (!window.IsClosing)
    {
        window.DoUpdate();
    }
    if (!window.IsClosing)
    {
        window.DoRender();
    }
+   loopStopwatch.Reset();
}
window.DoEvents();
window.Reset();

const double loopsPerSecond = 10000;

Stopwatch loopStopwatch = Stopwatch.StartNew();
window.Initialize();
while (!window.IsClosing)
{
    do
    {
        if (X86Base.IsSupported)
        {
            X86Base.Pause();
        }
    }
    while (loopStopwatch.Elapsed.TotalSeconds < (1 / loopsPerSecond));
    window.DoEvents();
    if (!window.IsClosing)
    {
        window.DoUpdate();
    }
    if (!window.IsClosing)
    {
        window.DoRender();
    }
+   loopStopwatch.Reset();
}
window.DoEvents();
window.Reset();

const double loopsPerSecond = 10000;

Stopwatch loopStopwatch = Stopwatch.StartNew();
window.Initialize();
while (!window.IsClosing)
{
    do
    {
        if (X86Base.IsSupported)
        {
            X86Base.Pause();
        }
    }
    while (loopStopwatch.Elapsed.TotalSeconds < (1 / loopsPerSecond));
    window.DoEvents();
    if (!window.IsClosing)
    {
        window.DoUpdate();
    }
    if (!window.IsClosing)
    {
        window.DoRender();
    }
+   loopStopwatch.Reset();
}
window.DoEvents();
window.Reset();

const double loopsPerSecond = 10000;

Stopwatch loopStopwatch = Stopwatch.StartNew();
window.Initialize();
while (!window.IsClosing)
{
    do
    {
        if (X86Base.IsSupported)
        {
            X86Base.Pause();
        }
    }
    while (loopStopwatch.Elapsed.TotalSeconds < (1 / loopsPerSecond));
    window.DoEvents();
    if (!window.IsClosing)
    {
        window.DoUpdate();
    }
    if (!window.IsClosing)
    {
        window.DoRender();
    }
+   loopStopwatch.Reset();
}
window.DoEvents();
window.Reset();

K

khitiaraOP•8/6/23, 7:10 PM

or there works too

K

King•8/6/23, 7:11 PM

Hmm...

K

King•8/6/23, 7:11 PM

That's weird

K

khitiaraOP•8/6/23, 7:11 PM

as originally done the first frame was limited and that was it lol

K

King•8/6/23, 7:11 PM

It does limit both FPS and UPS

K

King•8/6/23, 7:11 PM

But CPU usage is still going nuts

K

King•8/6/23, 7:11 PM

GPU is happier tho

K

khitiaraOP•8/6/23, 7:12 PM

can you check if its getting through the ifsupported and into the pause?

K

King•8/6/23, 7:12 PM

Also I am getting an exception when I close the program

yup heres the excerpt from raylib

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