Refer to http://www.oracle.com/technetwork/tutorials/tutorials-1876574.html for detail. 一些内容复制到这儿 The G1 Garbage Collector The Garbage-First (G1) collector is a server-style garbage collector, targeted for multi-processor machines with large memories…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2602 Bone Collector Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 54132    Accepted Submission(s): 22670 Problem Description Many years ago , in…

Jmeter由于是开源工具,所以目前有很多插件可以供使用,最简单的方法是先把Plugin Manager安装了 下载地址:https://jmeter-plugins.org/wiki/PluginsManager/ 解压放到lib/ext目录下后,启动Jmeter即可在工具栏选项中看到,然后选择一些你需要的插件进行安装 这里介绍一款比较有用的插件PerfMon Metrics Collector,用来监控CPU,memory等系统资源 注意到蓝色的链接,可以打开该插件的帮助,仔细看就会发现,你…

在网上找了很多,都不是我想要的,后来发现是我在springaop注解的时候 写错了类名导致的这个问题 @Pointcut("execution(* com.xxx.collector.service.impl.XxxServiceImpl.add(..))") public void pointcutExpression() { } 如上所示的部分写错了导致的 第一次用aop.... 希望可以帮到跟我一样的第一次使用aop出现这种错误的人…

Bone Collector II Time Limit: 5000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4229    Accepted Submission(s): 2205 Problem Description The title of this problem is familiar,isn't it?yeah,if you had took par…

容斥原理+状压 Card Collector Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1940    Accepted Submission(s): 907Special Judge Problem Description In your childhood, do you crazy for collecting the bea…

Problem Description Many years ago , in Teddy’s hometown there was a man who was called “Bone Collector”. This man like to collect varies of bones , such as dog’s , cow’s , also he went to the grave …The bone collector had a big bag with a volume of…

题目链接:http://acm.hust.edu.cn/vjudge/contest/view.action?cid=87125#problem/N 题目: Description Many years ago , in Teddy’s hometown there was a man who was called “Bone Collector”. This man like to collect varies of bones , such as dog’s , cow’s , also h…

有些资料中,为区别parallel collector ,将应用与gc并发成为并行,在接下来的文章中,仍称为并发. -XX:useConcMarkSweepGC,可以用于minor gc和major gc cms在gc时,也会有两次短暂停,垃圾收集线程与应用线程并发 并发失败: 如果无法及时清理内存和分配内存,也会暂停整个应用. OutOfMemoryException: 如果超过98%的时间用来gc,但每次恢复内存不足2%,会抛出该异常.与parallel collector不同, 98%时间…

问题说明:在一台zabbix被监控服务器上(64位centos6.8系统,64G内容)启动zabbix_agent,发现进程无法启动,10050端口没有起来! 启动zabbix_agent进程没有报错,但10050端口没有正常启动起来.[root@ctl ~]# /usr/local/zabbix/sbin/zabbix_agentd[root@ctl ~]# ps -ef|grep zabbix_agentroot 27506 27360 0 11:07 pts/5 00:00:00 grep…