Linux performance monitoring and analysis tools

Linux performance monitoring and analysis tool background recently, a pre-developed system performance test is required. The system is deployed on the Linux server cluster. In high concurrency and high load scenarios, you can collect all the information (including CPU, memory, I/O, disk, and network traffic) occupied by each device... linux performance monitoring and analysis tool background recently, a pre-developed system performance test is required. The system is deployed on the Linux server cluster. Collects all the information (including CPU, memory, I/O, disk, network traffic, etc.) occupied by resources of each device in high concurrency and high load scenarios ), further analyze system bottlenecks. The nmon tool is used here. Nmon is responsible for regularly collecting a full set of system information, and then nmon_analyser converts raw data into visualized tables and graphs. Body Wiki: nmon (short for Nigel's Monitor) is a popular system monitor tool for the AIX and Linux operating systems. the original nmon was a freely downloadable tool for AIX 4.3 from the AIX wiki. it was also rewritten for the Linux operating system running on IA-32, x86-64, RS/6000 and Power processor and Mainframe and released by IBM to open source in July 2009. nmon downloadHere -- select the nmon version corresponding to your system to download nmon_analyser download: Here usage: [plain] #. /nmon-h can be used to query the parameter list or directly execute nmon to view the real-time interface (such as top), for example, [plain] #. /nmon-f-t-s 15-c 480-f: output in standard format _ YYYYMMDD_HHMM.nmon. This file is the input of nmon_analyser.-s: data collection cycle, which is once every 15 s.-c: total number of data collection times. a total of 480 data records are collected here; 15*480 = 7200 s (2 hours) are collected continuously here;-m: specifies the file generation path; other 1. with crontab, the system can be monitored regularly, for example, start at every night and stop collecting at. 2. use nmon_analyser to convert the nmon file to the Excel format for direct browsing (the nmon file is essentially a comma-separated file, csv) 3. in the generated report, wAvg refers to the average of non-zero data. Source blog: http://blog.csdn.net/pirateleo