Java通过Thread.currentThread().getStackTrace()[1].getClassName();获得当前类名速度性能测试

测试用例2206022026 AMD4800H64G

测试代码

package stacktrace;

public class 通过currentThead的StackTrace获得ClassName速度测试2206022026 {
	
	static long sum;
	static void pln(Object...oar) {for(Object o:oar)System.out.println(o);}
	static String trt(String tag, Object...oar) {
		StringBuilder sb = new StringBuilder("<tr>");
		for(Object o:oar)sb.append("<"+tag+">"+o+"</"+tag+">");
		return (sb+"</tr>");
	}
	static String trth(Object...oar) {return trt("th",oar);}
	static String trtd(Object...oar) {return trt("td",oar);}
	
	static int w = 10000;
	static int amountArray[] = new int[] {
			w,w,w,w,w,w,
			w,20000,30000,40000,50000,60000,70000,80000,90000,
			w,20000,30000,40000,50000,60000,70000,80000,90000,
			10*w, 20*w, 30*w, 40*w, 50*w, 60*w, 70*w, 80*w, 90*w,
			100*w, 200*w, 300*w, 
//			100*w, 200*w, 300*w, 400*w, 500*w, 600*w, 700*w, 800*w, 900*w,
//			1000*w, 2000*w, 3000*w, 4000*w, 5000*w, 6000*w, 7000*w, 8000*w, 9000*w,
//			1*w*w, 2*w*w, 3*w*w,
//			10*w*w,
			};
	
	public static void main(int amount) {
		long t1 = System.currentTimeMillis();
		
		for(int c=0; c<amount; c++) {
			Thread.currentThread().getStackTrace()[1].getClassName();
		}
		
		long t2 = System.currentTimeMillis();
		long cost1 = t2-t1;
		
		pln(trtd(amount+"次",amount/10000+"万次",cost1+" 毫秒",cost1/1000D+" 秒"));
		
	}
	public static void main(String...arguments) {
		pln("<table><thead>"
				+ trth("执行次数","执行万次数","用时(毫秒)","用时(秒)")
				+ "</thead><tbody>");
		for(int amount:amountArray)main(amount);
		pln("</tbody></table>");
		
	}

}

测试结果