partial interface Performance {
void mark(DOMString markName);
void clearMarks(optional DOMString markName);
void measure(DOMString measureName, optional DOMString startMark, optional DOMString endMark);
void clearMeasures(optional DOMString measureName);
};
interface PerformanceMark : PerformanceEntry {
};
interface PerformanceMeasure : PerformanceEntry {
};