linux unix性能工具-监测工具简介

1, 监测工具简介
1.1 监测工具
可以分为4类:
1,内核统计收集工具
比如: vmstat, mpstat, and netstat.
? Mpstat: 每个处理器的统计和使用情况
? Vmstat 内存,运行队列, 统计的CPU使用
? Iostat: 磁盘I/O子系统操作,带宽和使用
? Netstat: 网络接口包速率,错误和冲突
? Kstat: 显示内核统计
? Sar 系统活动报告
以上命名只有netstat不是动态变化的.
2,进程工具:
比如: prstat, ptree, and pfiles.
? prstat - report active process statistics
? ps - report process status
每个进程的信息可由叫ptools或process tools的获取.这些工具位于进程文件系统中,在/proc
? pargs(1). Display process argument list.
? pflags(1). Display process flags.
? pcred(1). Display process credentials.
? pldd(1). Display process shared object library dependencies.
? psig(1). Display process signal dispositions.
? pstack(1). Display process stack.
? pmap(1). Display process address space mappings.
? pfiles(1). Display process opened files with names and flags.
? ptree(1). Display process family tree.
? ptime(1). Time process execution.
? pwdx(1). Display process working directory.
Process control is available with various ptools.
? pgrep(1). Search for a process name string, and return the PID.
? pkill(1). Send a kill signal or specified signal to a process or process list.
? pstop(1). Stop a process.
? prun(1). Start a process that has been stopped.
? pwait(1). Wait for a process to terminate.
? preap(1). Reap a zombie (defunct) process.
3,调测工具:
比如: truss and MDB.
? truss(1). Trace functions and system calls.
? mdb(1). Debug or control processes.
? dtrace(1M). Trace, analyze, control, and debug processes.
? plockstat(1M). Track user-defined locks in processes and threads.
? cputrack(1). Track per-processor hardware counters for a process.
? cpustat(1M). Track per-processor hardware counters.
? busstat(1M). Track interconnect bus hardware counters
4,动态工具;
比如: DTrace
1.2 Drill-Down 分析
1,监测:
可能使用SunMC, SNMP or sar 以获取全面的信息
2,鉴别
可能使用kstat and procfs tools
3,分析
可能使用TRuss, DTrace, and MDB.