Class: Gitlab::Cache::Metrics

Inherits:
Object
  • Object
show all
Defined in:
lib/gitlab/cache/metrics.rb

Constant Summary collapse

DEFAULT_BUCKETS = 
[0, 1, 5].freeze

Instance Method Summary collapse

Constructor Details

#initialize(cache_metadata) ⇒ Metrics

Returns a new instance of Metrics.



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# File 'lib/gitlab/cache/metrics.rb', line 9

def initialize(cache_metadata)
  @cache_metadata = cache_metadata
end

Instance Method Details

#increment_cache_hit(labels = {}) ⇒ Object

Increase cache hit counter



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# File 'lib/gitlab/cache/metrics.rb', line 15

def increment_cache_hit(labels = {})
  counter.increment(base_labels.merge(labels, cache_hit: true))
end

#increment_cache_miss(labels = {}) ⇒ Object

Increase cache miss counter



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# File 'lib/gitlab/cache/metrics.rb', line 21

def increment_cache_miss(labels = {})
  counter.increment(base_labels.merge(labels, cache_hit: false))
end

#observe_cache_generation(labels = {}, &block) ⇒ Object

Measure the duration of cacheable action

Examples:

observe_cache_generation do
  cacheable_action
end


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# File 'lib/gitlab/cache/metrics.rb', line 32

def observe_cache_generation(labels = {}, &block)
  real_start = Gitlab::Metrics::System.monotonic_time

  value = yield

  histogram.observe(base_labels.merge(labels), Gitlab::Metrics::System.monotonic_time - real_start)

  value
end