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Get Process Memory

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Do you need to get the memory usage of a process? Great because this library does that.

Install

In your Gemfile add

gem 'get_process_mem'

then run $ bundle install.

If you're using Windows you'll also need to have the sys-proctable gem.

Use It

Get the current process memory usage:

mem = GetProcessMem.new
puts mem.inspect
#<GetProcessMem @mb=24.28125 @gb=0.023712158203125 @kb=24864.0 @bytes=25460736 >
mem.bytes # => 25460736
mem.kb    # => 24864.0
mem.mb    # => 24.28125
mem.gb    # => 0.023712158203125

Note: All numeric values returned as a float except bytes which is an integer.

Get memory usage of another process:

`echo 'nothing to see here' > tmplogf`
pid = Process.spawn('tail -f tmplog')
mem = GetProcessMem.new(pid)
puts mem.inspect
# => #<GetProcessMem @mb=0.48828125 @gb=0.000476837158203125 @kb=500.0 @bytes=512000 >

Process.kill('TERM', pid)
Process.wait(pid)

mem.inspect
# => "#<GetProcessMem @mb=0.0 @gb=0.0 @kb=0.0 @bytes=0>"
`rm tmplog`

On Linux, for memory size we return the RSS or the Resident Set Size, basically how much memory the program takes up in RAM at the time, including all the shared memory.

License

MIT

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Get memory usage of a process in Ruby

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