aix performance monitoring commands

Sysstat The sysstat package contains utilities to monitor system performance and usage activity. sysstat contains varous utilities, common to collect commercial unixes, and tools you can schedule via cron to collect and historize performance and activity data. Http://sebastien.godard.pagesperso-orange.fr/features.html Download and install from the above site Including iostat (1) mpstat (1) pidstat (1)

have not used this! Press! You can use the shell command, this is useless! I don't know what command works here! Press Q to exit monitoring. Network performance. #1: top– Process Activity Status The top command provides a dynamic, real-time view of the running system, such as system processes, memory, and CPU consumption. By default, top displays the process used by the CPU, updated every 5 seconds.

Article Title: Linux performance monitoring and tuning (CPU ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. In fact, there are many articles on this part on the Internet. Why is this article still available? There are several reasons why it is the motivation of my tra

Linux Performance Testing commands are commonly used in linux performance testing. Linux tcpdump command details Linux strace command Strace is often used to track system calls and received signals during process execution. In the Linux World, processes cannot directly access hardware devices. When a process needs to access hardware devices (such as reading di

Pidstat appears to be in some newer versions of the 2.6 kernel, and needs to install the Sysstat package.Under Ubuntu, you can install it via the sudo apt-get install Sysstat.SAR commandCommand:Sar-x PID 1 1000 SAR can also specify the corresponding PID, focus on a fixed number of parameters, not pidstat so powerful. I can't see the corresponding I/O, IR and other information.The functions of the SAR can be covered by Mpstat, iostat and related functions.Dstat commandCommand:Dstat-y--tcp

This article focuses on performance performance monitoring on Linux (CentOS). 1. Monitor CPU Usage--uptime The command will print out how long the current time system has been running. Average system load of logged on users The load here is per unit of time, the CPU waits in the queue, evaluates how many processes are waiting, the more processes

If you are looking for a very easy-to-use Linux performance monitoring tool, I strongly recommend installing and using the Nmon command line utility. Nmon Monitoring Tool Nmon is a system administrator tuning and benchmarking tool that displays performance data for the following: Processor Memory Network Disk

The PCP tool is a very powerful performance analysis monitoring tool introduced in RHEL7/CENTOS7, citing its official site and Red Hat official introduction: Performance Co-pilot (PCP) is an open source, distributed, Metrics gathering and analysis system. This is includes coverage of activity in the areas Of:cpu, disk, memory, swapping, network, NFS, RPC, filesys

Netstat same usageNetstat-an |awk '/^tcp/{++sta[$NF]} END {for (key in STA) print key, "\ T", Sta[key]} ' can view all states(if the established is large, the system is busy, usually within 1000)Five, Linux under Grab Bag (tcpdump)Tcpdump-nn the first n means that the IP is displayed in digital form, if the hostname is not displayed,Look at the flow of data.Usually TCP, if you see a packet of UDP can be attacked. (DDOS UDP flood flood attack, if you encounter this can only access professional a

process (in kilobytes)%MEM: Percentage of memory used by the processCommand: Pull up the commands corresponding to the process4) Monitoring the PID 1 (INIT) Process task switching situation, which refreshes and outputs every 2 seconds, 3 times after the program exits.Pidstat-p 1 2 3-w07:32:15 AM PID cswch/s nvcswch/s Command07:32:17 AM 1 0.00 0.00 Init07:32:19 AM 1 0.00 0.00 Init07:32:21 AM 1 0.00 0.00 Ini

-NATP: Check the corresponding network link, follow Recv-q, send-q, state.Lsof-p pid: Find the corresponding PID file handleLsof-i: 80: Find out which process is consuming the corresponding portLsof/tmp/1.txt: Find out which process is consuming the corresponding fileTcpdump/wireshark: Packet Capture analysis toolA series of Java monitoring commands such as Jstat/jmap/jstack/jpsAt lastIf you want to do some

item.bin)The screen displays "Server is ready." Prompt, the user types http://localhost:7000/in the browser to see the results of the analysis, as shown in:　　　　Jstack:java Stack Trace Tool　　　　the Jstack (Stack Trace for Java) command is used to generate a thread snapshot of the current moment of the virtual machine (commonly referred to as a threaddump or Javacore file). A thread snapshot is a collection of method stacks that each thread in the current virtual machine is executing, and the prim

]# php ss_get_by_ssh.php--type mongodb--host 10.254.3.62--port2 30000--items JC,JDJc:4 jd:5497683968 5, generate the monitor diagram In the interface, select "Device", select the MongoDB server Connection "3.x2_mongodb", then select "Create Graphs for this Host" in the upper right corner, select the MongoDB service item in the dropdown box after "Graph Types", You will see the MONGODB monitoring service in the list, then tick the "Create" button in th

Tags: io command free command PS command netstat tcpdump seven weeks two sessions (March 20)10.6 Monitoring IO Performance10.7 Free Command10.8 PS Command10.9 Viewing network status10.10 Linux under Grab bag Extended TCP three-time handshake four times wave http://www.doc88.com/p-9913773324388.htmlTshark several usages: http://www.aminglinux.com/bbs/thread-995-1-1.html10.6 Monitoring IO PerformanceTwo

data is written to the CSV file. stored on the phone at the same time5, can choose to open the floating window function, floating window real-time display measured application occupancy performance data information6, in the floating window can be high-speed start or turn off the phone's WiFi network002.pngTwo tools more similar function, the latter one more traffic monitoring, the advantage is only need to

CPU Performance Metrics 1. Ratio of CPU used by user process 2. Ratio of CPU used by system process 3. Wio, waiting for I/O but the CPU is in idle state ratio. 4. CPU Idle Rate 5. CPU Ratio for context exchange 6,nice 7,real-time 8, run the length of the process queue 9, average load the common tools for monitoring CPU performance under Linux are 1. Iostat Only

Linux system performance and use of activity monitoring tool-Sysstat Sysstat is indeed a convenient tool for monitoring system resources, system performance, and usage activities. The sysstat package is used more or less in our daily basic tools. It also provides a tool that can use cron for scheduled operation to coll