class ActiveSupport::Notifications::Event
Attributes
name[R]
payload[RW]
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 110 def initialize(name, start, ending, transaction_id, payload) @name = name @payload = payload.dup @time = start ? start.to_f * 1_000.0 : start @transaction_id = transaction_id @end = ending ? ending.to_f * 1_000.0 : ending @cpu_time_start = 0.0 @cpu_time_finish = 0.0 @allocation_count_start = 0 @allocation_count_finish = 0 @gc_time_start = 0 @gc_time_finish = 0 end
Public Instance Methods
allocations()
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cpu_time()
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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 |event| @event = event end ActiveSupport::Notifications.instrument('wait') do sleep 1 end @event.duration # => 1000.138
# File lib/active_support/notifications/instrumenter.rb, line 198 def duration @end - @time end
end()
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# File lib/active_support/notifications/instrumenter.rb, line 128 def end @end / 1000.0 if @end end
finish!()
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Record information at the time this event finishes
# File lib/active_support/notifications/instrumenter.rb, line 154 def finish! @cpu_time_finish = now_cpu @gc_time_finish = now_gc @end = now @allocation_count_finish = now_allocations end
gc_time()
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idle_time()
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start!()
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Record information at the time this event starts
# File lib/active_support/notifications/instrumenter.rb, line 146 def start! @time = now @cpu_time_start = now_cpu @gc_time_start = now_gc @allocation_count_start = now_allocations end
time()
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# File lib/active_support/notifications/instrumenter.rb, line 124 def time @time / 1000.0 if @time end
Private Instance Methods
now()
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# File lib/active_support/notifications/instrumenter.rb, line 203 def now Process.clock_gettime(Process::CLOCK_MONOTONIC, :float_millisecond) end
now_allocations()
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# File lib/active_support/notifications/instrumenter.rb, line 230 def now_allocations GC.stat(:total_allocated_objects) end
now_cpu()
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# File lib/active_support/notifications/instrumenter.rb, line 210 def now_cpu Process.clock_gettime(Process::CLOCK_THREAD_CPUTIME_ID, :float_millisecond) end
now_gc()
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# File lib/active_support/notifications/instrumenter.rb, line 220 def now_gc GC.total_time end