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slower wakeup more powersave

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lizzie 2026-05-26 05:55:20 +00:00
parent 1d5853f7c4
commit f42f17e7cc
1 changed files with 1 additions and 1 deletions
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2
src/common/thread.cpp
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@ -205,7 +205,7 @@ bool Event::WaitFor(const std::chrono::nanoseconds time) {
// #UD If CPUID.7.0:ECX.WAITPKG[bit 5]=0. // #UD If CPUID.7.0:ECX.WAITPKG[bit 5]=0.
while (true) { while (true) {
_umonitor(std::addressof(is_set)); _umonitor(std::addressof(is_set));
if (!is_set.load() && !_umwait(1, end)) //umwait is absolute time!!! if (!is_set.load() && !_umwait(0, end)) //umwait is absolute time!!!
return false; return false;
bool expected = true; bool expected = true;
if (is_set.compare_exchange_weak(expected, false, std::memory_order_release)) if (is_set.compare_exchange_weak(expected, false, std::memory_order_release))