fixed point was a mistake
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@lina I don't know? >_> I just split the screen between 4 worker threads that all draw each triangle to their quadrant
@eniko How many cores/threads does your machine have? Can you pin app threads to specific cores/threads?
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@lina I don't know? >_> I just split the screen between 4 worker threads that all draw each triangle to their quadrant
@eniko@mastodon.gamedev.place @lina@vt.social do you happen to own a Bulldozer CPU?
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@eniko How many cores/threads does your machine have? Can you pin app threads to specific cores/threads?
@lina not sure offhand and I'm in bed now but my CPU is a Ryzen 7 5600g
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@eniko@mastodon.gamedev.place @lina@vt.social do you happen to own a Bulldozer CPU?
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I have completed the triangle rasterizer fixed point conversion
The benchmarks have all improved between 0 and 35%
Except for threaded random triangles with flat color. That metric has increased 106%. As in its twice as fast as before
I have no idea why but I'm fairly sure I've ruled out bugs in my benchmarking
I am very confused
@eniko mutex/locking/semaphores?
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I have completed the triangle rasterizer fixed point conversion
The benchmarks have all improved between 0 and 35%
Except for threaded random triangles with flat color. That metric has increased 106%. As in its twice as fast as before
I have no idea why but I'm fairly sure I've ruled out bugs in my benchmarking
I am very confused
@eniko (Highly speculative, since FPUs are pretty good these days:) If the CPU has hyperthreading: Maybe two fixed-point threads share ALUs better than two floating-point threads share FPUs?
You might even find that combined fixed and float makes better overall use of a modern CPU, provided you can do both on a single thread or jump through the hoops to get both threads scheduled on the same core.
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@lina not sure offhand and I'm in bed now but my CPU is a Ryzen 7 5600g
@eniko That doesn't exist... Ryzen 5 or different model number?
If it's the 5 5600G then that's 6 cores, so with 4 threads you shouldn't have HT effects as long as the OS scheduler isn't dumb about it...
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fixed point was in fact *not* a mistake
@eniko these two messages are my constant bistable state about fixed points
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@eniko That doesn't exist... Ryzen 5 or different model number?
If it's the 5 5600G then that's 6 cores, so with 4 threads you shouldn't have HT effects as long as the OS scheduler isn't dumb about it...
@lina er yeah 5 sorry
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@eniko mutex/locking/semaphores?
@slyecho wouldn't that make it slower, not faster?
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