Revision: 12652 Author: [email protected] Date: Tue Oct 2 04:07:26 2012 Log: Revert "Adding a high-resolution timer to platform win32."
This reverts r12651. Review URL: https://codereview.chromium.org/11033014 http://code.google.com/p/v8/source/detail?r=12652 Modified: /branches/bleeding_edge/src/platform-win32.cc ======================================= --- /branches/bleeding_edge/src/platform-win32.cc Tue Oct 2 03:59:44 2012 +++ /branches/bleeding_edge/src/platform-win32.cc Tue Oct 2 04:07:26 2012 @@ -591,16 +591,8 @@ return t.ToJSTime(); } - -static LARGE_INTEGER frequency = 0; - - -// Returns the tickcounter based on QueryPerformanceCounter or timeGetTime. +// Returns the tickcounter based on timeGetTime. int64_t OS::Ticks() { - static LARGE_INTEGER tick; - if (frequency != 0 && QueryPerformanceCounter(&tick)) { - return static_cast<int64_t>(tick.QuadPart * 1e6 / frequency->QuadPart); - } return timeGetTime() * 1000; // Convert to microseconds. } @@ -2095,15 +2087,12 @@ // call this setup code within the same millisecond. uint64_t seed = static_cast<uint64_t>(TimeCurrentMillis()); srand(static_cast<unsigned int>(seed)); - // Get the number of ticks per second that is used in OS::Ticks() - QueryPerformanceFrequency(&frequency); limit_mutex = CreateMutex(); SamplerThread::SetUp(); } void OS::TearDown() { - frequency = 0; SamplerThread::TearDown(); delete limit_mutex; } -- v8-dev mailing list [email protected] http://groups.google.com/group/v8-dev
