Using ps chatting processes - Advanced
The ps program can be used to identify problematic processes. for example you can use it to identify hung processes. cpu busy processes and memory hungry processes buy buy canada goose jackets new york . We've already taken a quick look at some basic usage of the ps command buy canada goose jackets new york . In this tutorial buy canada goose jackets new york 2015 . we'll cover some advanced usage.
To show all running processes along with environment variables, real canada goose expedition bomber . use.
this can come in handy when trying to determine why your application runs ok on boxA but not boxB (i. e. env variable affects the running or behaviour of the application), trillium parka canada goose winter jackets uk for sale .
You can specify which columns to include in the output list.
For example to show the user buy canada goose jackets new york . virtual memory size. resident physical memory size. overall memory usage and cpu usage for each process on the system. you could use the following.
Another example to display program name. command line args. and virtual memory size would look like.
See the manpage for full list of useful keywords cheap buy canada goose jackets new york .
If you would like to add your own informational text along with the results you can use format specifiers.
Various format specifiers are available for use inside a user defined string buy canada goose jackets new york . For example. to display the user buy canada goose jackets new york discount . pid. command line args. and elapsed time you can use grey canada goose parka .
See manpage for full list of useful format specifiers.
You can sort the results by keyword if required. For example to sort by resident set size (physical ram being used) use --sort rss.
To sort by start time. you could use.
To sort all processes by elapsed time (without using any custom display format) canada goose retailers woodbridge store online .
To sort all processes by nice value.
ps aux --sort nice To show in your own format with description. sorted by virtual memory size cheap canada goose men's down jacket .
To display showing stack pointer.
Each process consists of one or more "threads". The ps command can show us information about threads in various ways.
To list all related threads after each process along with signal format information. use. In linux. each thread is called a ligh weight process (LWP) canada goose point de vente france store , canada goose red parka store online . To list columns for LWP and NLWP (number of threads) buy canada goose jackets new york . use. or.
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