1.某一进程所有的线程个数.启动时间 ps max -o lstart,lwp,pid,nlwp,cmd|more lstart: STARTED time the command started.nlwp: NLWP number of lwps (threads) in the process. (alias thcount).lwp: LWP lwp (light weight process, or thread) ID of the lwp being
log4j中的%x ---NDC,%X---MDC 即%x NDC.clear();NDC.push(this.toString());%X{first} %X{last}MDC.put("first", "Dorothy"); Logger logger = LoggerFactory.getLogger(SimpleMDC.class); // We now put the last name MDC.put("last", "Pa