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Versions: 11
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Stored size: 1.04 KB
Contents
# encoding: utf-8
module OneApm
module Collector
class ShellPoller
attr_accessor :pid
def memory
pids.inject(0.0){|m, pid| m + get_memory_by_pid(pid) }
end
def cpu_utilization
@pid = Process.pid
ps_float('%cpu') / 100.0
end
def to_s
"ShellPoller from: ps -p #{pid}"
end
def self.kb_page_size
@size ||= `getconf PAGE_SIZE`.to_f / 1024.0 rescue 4.0
end
protected
def pgrp_id
Process.getpgrp
end
def pids_cmd
`ps -o pid,pgid -e | grep -w "#{pgrp_id}"`
end
def pids
@pids = pids_cmd.split(/\s+/).uniq rescue [Process.pid.to_s]
@pids = [Process.pid.to_s] if @pids.empty?
@pids
end
def get_memory_by_pid pid
return 0.0 if pid.empty?
@pid = pid
poll_memory rescue 0.0
end
def poll_memory
ps_float('rss') / 1024.0
end
def ps_float keyword
`ps -o #{keyword}= -p #{pid}`.to_f
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems