class AppPerfAgent::Plugin::System::Cpu
Attributes
last[RW]
Public Class Methods
new()
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Calls superclass method
# File lib/app_perf_agent/plugin/system/cpu.rb, line 10 def initialize self.last = Vmstat.snapshot.cpus super end
Public Instance Methods
call()
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# File lib/app_perf_agent/plugin/system/cpu.rb, line 15 def call cpus = Vmstat.snapshot.cpus metrics = cpus.each_with_index.flat_map {|cpu, index| total = (cpu.idle + cpu.nice + cpu.system + cpu.user) - (last[index].idle + last[index].nice + last[index].system + last[index].user) [ ["system.cpu.idle", (cpu.idle - last[index].idle).to_f / total.to_f * 100.to_f, { "num" => cpu.num }], ["system.cpu.nice", (cpu.nice - last[index].nice).to_f / total.to_f * 100.to_f, { "num" => cpu.num }], ["system.cpu.system", (cpu.system - last[index].system).to_f / total.to_f * 100.to_f, { "num" => cpu.num }], ["system.cpu.user", (cpu.user - last[index].user).to_f / total.to_f * 100.to_f, { "num" => cpu.num }] ] } self.last = cpus metrics end