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time: yield accurate_sleep instead of relaxing the cpu
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+8
-2
@@ -213,6 +213,10 @@ time_add :: proc(t: Time, d: Duration) -> Time {
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return Time{t._nsec + i64(d)}
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}
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yield :: proc "contextless" () {
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_yield()
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}
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// Accurate sleep borrowed from: https://blat-blatnik.github.io/computerBear/making-accurate-sleep-function/
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accurate_sleep :: proc(d: Duration) {
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to_sleep, estimate, mean, m2, count: Duration
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@@ -240,8 +244,10 @@ accurate_sleep :: proc(d: Duration) {
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start := tick_now()
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for to_sleep > tick_since(start) {
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intrinsics.cpu_relax() // prevent the spinlock from taking the thread hostage, still accurate enough
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// NOTE: it is possible that sometimes cpu can relax a bit too much, in that case it should spinlock freely for a while (TODO)
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// prevent the spinlock from taking the thread hostage, still accurate enough
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yield()
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// NOTE: it might be possible that it yields for too long, in that case it should spinlock freely for a while
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// TODO: needs actual testing done to check if that's the case
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}
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}
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