class ActiveSupport::Notifications::Event
Attributes
children[R]
end[R]
name[R]
payload[RW]
time[R]
transaction_id[R]
Public Class Methods
new(name, start, ending, transaction_id, payload)
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# File lib/active_support/notifications/instrumenter.rb, line 58 def initialize(name, start, ending, transaction_id, payload) @name = name @payload = payload.dup @time = start @transaction_id = transaction_id @end = ending @children = [] @cpu_time_start = 0 @cpu_time_finish = 0 @allocation_count_start = 0 @allocation_count_finish = 0 end
Public Instance Methods
<<(event)
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# File lib/active_support/notifications/instrumenter.rb, line 119 def <<(event) @children << event end
allocations()
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Returns the number of allocations made since the call to start!
and the call to finish!
# File lib/active_support/notifications/instrumenter.rb, line 99 def allocations @allocation_count_finish - @allocation_count_start end
cpu_time()
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Returns the CPU time (in milliseconds) passed since the call to start!
and the call to finish!
# File lib/active_support/notifications/instrumenter.rb, line 87 def cpu_time (@cpu_time_finish - @cpu_time_start) * 1000 end
duration()
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Returns the difference in milliseconds between when the execution of the event started and when it ended.
ActiveSupport::Notifications.subscribe('wait') do |*args| @event = ActiveSupport::Notifications::Event.new(*args) end ActiveSupport::Notifications.instrument('wait') do sleep 1 end @event.duration # => 1000.138
# File lib/active_support/notifications/instrumenter.rb, line 115 def duration 1000.0 * (self.end - time) end
finish!()
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Record information at the time this event finishes
# File lib/active_support/notifications/instrumenter.rb, line 79 def finish! @cpu_time_finish = now_cpu @end = now @allocation_count_finish = now_allocations end
idle_time()
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Returns the idle time time (in milliseconds) passed since the call to start!
and the call to finish!
# File lib/active_support/notifications/instrumenter.rb, line 93 def idle_time duration - cpu_time end
parent_of?(event)
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# File lib/active_support/notifications/instrumenter.rb, line 123 def parent_of?(event) @children.include? event end
start!()
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Record information at the time this event starts
# File lib/active_support/notifications/instrumenter.rb, line 72 def start! @time = now @cpu_time_start = now_cpu @allocation_count_start = now_allocations end
Private Instance Methods
now()
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# File lib/active_support/notifications/instrumenter.rb, line 128 def now Concurrent.monotonic_time end
now_allocations()
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# File lib/active_support/notifications/instrumenter.rb, line 145 def now_allocations 0 end
now_cpu()
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# File lib/active_support/notifications/instrumenter.rb, line 135 def now_cpu Process.clock_gettime(Process::CLOCK_THREAD_CPUTIME_ID) end