64 lines
1.7 KiB
Ruby
64 lines
1.7 KiB
Ruby
module Gitlab
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module Metrics
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module Subscribers
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# Class for tracking the total time spent in Rails cache calls
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# http://guides.rubyonrails.org/active_support_instrumentation.html
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class RailsCache < ActiveSupport::Subscriber
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attach_to :active_support
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def cache_read(event)
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increment(:cache_read, event.duration)
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return unless current_transaction
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return if event.payload[:super_operation] == :fetch
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if event.payload[:hit]
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current_transaction.increment(:cache_read_hit_count, 1)
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else
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current_transaction.increment(:cache_read_miss_count, 1)
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end
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end
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def cache_write(event)
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increment(:cache_write, event.duration)
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end
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def cache_delete(event)
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increment(:cache_delete, event.duration)
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end
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def cache_exist?(event)
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increment(:cache_exists, event.duration)
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end
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def cache_fetch_hit(event)
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return unless current_transaction
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current_transaction.increment(:cache_read_hit_count, 1)
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end
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def cache_generate(event)
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return unless current_transaction
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current_transaction.increment(:cache_read_miss_count, 1)
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end
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def increment(key, duration)
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return unless current_transaction
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current_transaction.increment(:cache_duration, duration)
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current_transaction.increment(:cache_count, 1)
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current_transaction.increment("#{key}_duration".to_sym, duration)
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current_transaction.increment("#{key}_count".to_sym, 1)
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end
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private
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def current_transaction
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Transaction.current
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end
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end
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end
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end
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end
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