static CacheMemoryPressure() {
UnsafeNativeMethods.MEMORYSTATUSEX memoryStatusEx = new UnsafeNativeMethods.MEMORYSTATUSEX();
memoryStatusEx.Init();
if (UnsafeNativeMethods.GlobalMemoryStatusEx(ref memoryStatusEx) != 0) {
s_totalPhysical = memoryStatusEx.ullTotalPhys;
s_totalVirtual = memoryStatusEx.ullTotalVirtual;
}
}
protected override int GetCurrentPressure()
{
UnsafeNativeMethods.MEMORYSTATUSEX memoryStatusEx = new UnsafeNativeMethods.MEMORYSTATUSEX();
memoryStatusEx.Init();
if (UnsafeNativeMethods.GlobalMemoryStatusEx(ref memoryStatusEx) == 0)
{
return 0;
}
int dwMemoryLoad = memoryStatusEx.dwMemoryLoad;
if (base._pressureHigh != 0)
{
PerfCounters.SetCounter(AppPerfCounter.CACHE_PERCENT_MACH_MEM_LIMIT_USED, dwMemoryLoad);
}
return dwMemoryLoad;
}
override protected int GetCurrentPressure() {
UnsafeNativeMethods.MEMORYSTATUSEX memoryStatusEx = new UnsafeNativeMethods.MEMORYSTATUSEX();
memoryStatusEx.Init();
if (UnsafeNativeMethods.GlobalMemoryStatusEx(ref memoryStatusEx) == 0)
return 0;
int memoryLoad = memoryStatusEx.dwMemoryLoad;
if (_pressureHigh != 0) {
// PerfCounter: Cache Percentage Machine Memory Limit Used
// = total physical memory used / total physical memory used limit
PerfCounters.SetCounter(AppPerfCounter.CACHE_PERCENT_MACH_MEM_LIMIT_USED, memoryLoad);
}
return memoryLoad;
}