如何申请免费网站域名,天津建设工程信息网里如何添加设计资质,ui模板免费下载,专业电商网站建设价格1 Java日志框架性能比较前面几章#xff0c;笔者分别介绍了log4j,logback,log4j2三大日志实现框架。接下来#xff0c;就用具体的数据比较下#xff0c;哪个日志框架的性能更好#xff01;单线程#xff1a;外循环100次#xff0c;内循环100000次#xff1b;多线程…1 Java日志框架性能比较前面几章笔者分别介绍了log4j,logback,log4j2三大日志实现框架。接下来就用具体的数据比较下哪个日志框架的性能更好单线程外循环100次内循环100000次多线程开启100个线程每个线程执行100000次1.1 测试代码(1)log4j:public class log4jDemo {Logger logger Logger.getLogger(log4jDemo.class);Testpublic void testThread() throws InterruptedException {int THREAD_NUM 100;final int LOOP_NUM 100000;final CountDownLatch countDownLatch new CountDownLatch(THREAD_NUM);long start System.currentTimeMillis();for(int x 0;x THREAD_NUM;x){new Thread(new Runnable() {public void run() {for (int y 0; y LOOP_NUM; y) {logger.info(Info Message!);}countDownLatch.countDown();}}).start();}countDownLatch.await();System.out.println(System.currentTimeMillis() - start);}Testpublic void test() throws InterruptedException {int X_NUM 100;int Y_NUM 100000;long start System.currentTimeMillis();for(int x0;x X_NUM;x) {for (int y 0; y Y_NUM; y) {logger.info(Info Message!);}}System.out.print(System.currentTimeMillis() - start);}}(2)logback:public class logbackDemo {Logger logger LoggerFactory.getLogger(logbackDemo.class);Testpublic void testThread() throws InterruptedException {int THREAD_NUM 100;final int LOOP_NUM 100000;final CountDownLatch countDownLatch new CountDownLatch(THREAD_NUM);long start System.currentTimeMillis();for(int x 0;x THREAD_NUM;x){new Thread(new Runnable() {public void run() {for (int y 0; y LOOP_NUM; y) {logger.info(Info Message!);}countDownLatch.countDown();}}).start();}countDownLatch.await();System.out.println(System.currentTimeMillis() - start);}Testpublic void test() {int X_NUM 100;int Y_NUM 100000;long start System.currentTimeMillis();for(int x0;xfor (int y 0; y Y_NUM; y) {logger.info(Info Message!);}}System.out.print(System.currentTimeMillis()-start);}}(3)log4j2public class log4j2Demo {private Logger logger LogManager.getLogger(log4j2Demo.class);Testpublic void testThread() throws InterruptedException {int THREAD_NUM 100;final int LOOP_NUM 100000;final CountDownLatch countDownLatch new CountDownLatch(THREAD_NUM);long start System.currentTimeMillis();for(int x 0;x THREAD_NUM;x){new Thread(new Runnable() {public void run() {for (int y 0; y LOOP_NUM; y) {logger.info(Info Message!);}countDownLatch.countDown();}}).start();}countDownLatch.await();System.out.println(System.currentTimeMillis() - start);}Testpublic void test() throws InterruptedException {int X_NUM 100;int Y_NUM 100000;long start System.currentTimeMillis();for(int x0;xfor (int y 0; y Y_NUM; y) {logger.info(Info Message!);}}System.out.print(System.currentTimeMillis() - start);}}1.2 配置文件(1)log4j:(2)logback:e:/log.outtrue%d{HH:mm:ss.SSS} %p %c - %m%ne:/log.outtruefalse8192%d{HH:mm:ss.SSS} %p %c - %m%n0128(3)log4j2%d{HH:mm:ss.SSS} %p %c - %m%nimmediateFlushfalse bufferedIOtrue bufferSize8192%d{HH:mm:ss.SSS} %p %c - %m%n1.3 结果比较(毫秒)笔者从单线程、多线程2种情况下进行的测试无论是多线程还是单线程在启用缓存的情况下系统性能得到了巨大的提升在单线程情况下相比较来说启用异步Appender并没有对性能有较大的提升值得一提的是在log4j2中多线程情况下相对于同步logger来说异步logger并没有进一步提高系统的性能两者不相上下但是对于其他情况而言异步logger还是有较大的提升单线程(1)单线程未开启缓存立即刷出log4j29772、29959、30911logback25423、24552、26006log4j237927、38240、40164(2)单线程开启缓存不立即刷出log4j9858、9677、9665logback5561、5604、5611log4j25782、5505、5499(3)单线程异步appender,未开启缓存立即输出log4j29683、29929、29385logback33102、31779、30516log4j239298、39562、41872(4)单线程异步appender开启缓存不立即输出log4j10110、10068、10177logback8753、9112、8922log4j28692、8400、8252多线程(1)多线程未开启缓存立即刷出log4j38541、37791、38366logback35644、35463、35442log4j238544、38746、38706(2)多线程开启缓存不立即刷出log4j13296、12938、12686logback6547、6294、6576log4j25596、5423、5421(3)多线程异步appender,未开启缓存立即输出log4j30844、32088、30734logback44203、42191、43228log4j246804、46034、46232(4)多线程异步appender开启缓存不立即输出log4j10422、10204、10495logback40249、40437、40173log4j27832、8447、8660(5)多线程异步logger未开启缓存立即输出log4j240555、40245、40325(6)多线程异步logger开启缓存不立即刷出log4j25319、5407、5305
