摘要： LTT(LinuxTraceToolkit)是Linux内核性能分析工具,由探测内核、数据收集模块、数据提交守护进程、数据表示和分析软件4部分组成,它主要对内核事件进行跟踪,提供精确详细的跟踪信息重构特定时间段内系统行为,使得用户正确了解系统动态,并为后期数据处理提供特色图形化显示和分析工具。经过测试,运行LTT开销低廉,能够有效帮助用户识别性能瓶颈。
关键词:
Linux,
性能分析,
动态探针
Abstract: LTT is the tool of Linux kernel performance analysis, it is composed of 4 software parts: a modified Linux kernel, data collectionmodule, data committing module, data presentation and analysis. LTT traces kernel events and provides its user with all the exact informationrequired to reconstruct a system's behavior during a certain period of time. One can know exactly the dynamics of a system. At the same time itoffers a convenient offline graphical display and analysis tool. LTT is still a low overhead monitoring tool and identifies performance bottleavailably.
中图分类号:
陈丽波,吴庆波. Linux内核跟踪机制LTT的研究[J]. , 2005, 31(12): 66-68.
CHEN Libo, WU Qingbo. Research of Linux Kernel Trace Mechanism LTT[J]. , 2005, 31(12): 66-68.