Good weekend, everyone. The second original article of the day is here. Today, we mainly bring a system administrator daily use of an operation and maintenance tool, I hope you have harvest.

Psutil (Process and System Utilities) is a cross-platform library that manages system resources through ps, top (htop), ifconfig, and kill commands.

With it we can better system monitoring, analysis and limit the use of system resources, is a necessary tool for system administrators.

Installation:

PIP install psutil

 1> import psutil 2> psutil.cpu_count() 31 4> psutil.cpu_count(logical=False) # Number of physical cpus 5> mem = psutil.virtual_memory() 6> mem.total 916676044810> psutil.disk_partitions() # 11[sdiskPart (device='/dev/vda1', mountpoint='/', fstype='ext4', opts='rw,relatime,errors=remount-ro,stripe=32639,data=ordered'),12 sdiskpart(device='/dev/vda1', mountpoint='/var/lib/docker/aufs', fstype='ext4', Opts =' rW,relatime,errors=remount-ro,stripe=32639,data=ordered')] 12 > psutil.pids( Psuitl.process (32470).name()Copy the code

Psutil includes CPU, memory, disk, and process information, as well as network information, user logins, and boot time.

After we get these information, we can do a simple server memory monitoring, without the need to use a full set of tools such as StastSD + Promeuthus or Graphite + Grafana for large-scale monitoring system services and API data.

Can be reference to the articles of the cow force | build Web performance monitoring system from 0 to 1

Finally, you can look at other uses of ipython, which I’ve mentioned for a long time.



Hope you have a good weekend!

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