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#pragma once
namespace Whisper
{
// Get current time in CPU clock
// More specifically, each CPU core has a timestamp counter which runs at CPU's base frequency, regardless on the frequency scaling of that core.
inline int64_t tscNow()
{
return __rdtsc();
}
// Scale the time interval from CPU time stamp counter clock into 100-nanosecond ticks, rounding to nearest
uint64_t ticksFromTsc( uint64_t tscDiff );
class CpuProfiler
{
const int64_t started = tscNow();
public:
uint64_t elapsed() const
{
return ticksFromTsc( (uint64_t)( tscNow() - started ) );
}
};
}
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