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属性

[R] name
[RW] payload
[R] transaction_id

类公共方法

new(name, start, ending, transaction_id, payload)

来源: 显示 | 在GitHub上

# File activesupport/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

实例公共方法

allocations()

返回从调用 start! 到调用 finish! 之间的分配次数。

来源: 显示 | 在GitHub上

# File activesupport/lib/active_support/notifications/instrumenter.rb, line 176
def allocations
  @allocation_count_finish - @allocation_count_start
end

cpu_time()

返回从调用 start! 到调用 finish! 之间的 CPU 时间（以毫秒为单位）。

来源: 显示 | 在GitHub上

# File activesupport/lib/active_support/notifications/instrumenter.rb, line 163
def cpu_time
  @cpu_time_finish - @cpu_time_start
end

duration()

返回事件执行开始和结束之间的毫秒差。

ActiveSupport::Notifications.subscribe('wait') do |event|
  @event = event
end

ActiveSupport::Notifications.instrument('wait') do
  sleep 1
end

@event.duration # => 1000.138

来源: 显示 | 在GitHub上

# File activesupport/lib/active_support/notifications/instrumenter.rb, line 198
def duration
  @end - @time
end

end()

来源: 显示 | 在GitHub上

# File activesupport/lib/active_support/notifications/instrumenter.rb, line 128
def end
  @end / 1000.0 if @end
end

finish!()

记录此事件结束时的信息

来源: 显示 | 在GitHub上

# File activesupport/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()

返回从调用 start! 到调用 finish! 之间的 GC 所用时间（以毫秒为单位）。

来源: 显示 | 在GitHub上

# File activesupport/lib/active_support/notifications/instrumenter.rb, line 182
def gc_time
  (@gc_time_finish - @gc_time_start) / 1_000_000.0
end

idle_time()

返回从调用 start! 到调用 finish! 之间的空闲时间（以毫秒为单位）。

来源: 显示 | 在GitHub上

# File activesupport/lib/active_support/notifications/instrumenter.rb, line 169
def idle_time
  diff = duration - cpu_time
  diff > 0.0 ? diff : 0.0
end

start!()

记录此事件开始时的信息

来源: 显示 | 在GitHub上

# File activesupport/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()

来源: 显示 | 在GitHub上

# File activesupport/lib/active_support/notifications/instrumenter.rb, line 124
def time
  @time / 1000.0 if @time
end