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Diffstat (limited to 'doc/development/instrumentation.md')
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1 files changed, 12 insertions, 11 deletions
diff --git a/doc/development/instrumentation.md b/doc/development/instrumentation.md index bdbcd52eb61..8fb7f29c86c 100644 --- a/doc/development/instrumentation.md +++ b/doc/development/instrumentation.md @@ -1,7 +1,7 @@ --- stage: Monitor group: Health -info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers +info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments --- # Instrumenting Ruby code @@ -11,7 +11,7 @@ blocks of Ruby code. Method instrumentation is the primary form of instrumentation with block-based instrumentation only being used when we want to drill down to specific regions of code within a method. -Please refer to [Product Analytics](product_analytics/index.md) if you are tracking product usage patterns. +Please refer to [Product Analytics](https://about.gitlab.com/handbook/product/product-analytics-guide/) if you are tracking product usage patterns. ## Instrumenting Methods @@ -19,13 +19,14 @@ Instrumenting methods is done by using the `Gitlab::Metrics::Instrumentation` module. This module offers a few different methods that can be used to instrument code: -- `instrument_method`: instruments a single class method. -- `instrument_instance_method`: instruments a single instance method. -- `instrument_class_hierarchy`: given a Class this method will recursively - instrument all sub-classes (both class and instance methods). -- `instrument_methods`: instruments all public and private class methods of a Module. -- `instrument_instance_methods`: instruments all public and private instance methods of a +- `instrument_method`: Instruments a single class method. +- `instrument_instance_method`: Instruments a single instance method. +- `instrument_class_hierarchy`: Given a Class, this method recursively + instruments all sub-classes (both class and instance methods). +- `instrument_methods`: Instruments all public and private class methods of a Module. +- `instrument_instance_methods`: Instruments all public and private instance + methods of a Module. To remove the need for typing the full `Gitlab::Metrics::Instrumentation` namespace you can use the `configure` class method. This method simply yields @@ -91,7 +92,7 @@ Ruby code. In case of the above snippet you'd run the following: - `$ Banzai::Renderer.render` -This will print out something along the lines of: +This prints a result similar to: ```plaintext From: /path/to/your/gitlab/lib/gitlab/metrics/instrumentation.rb @ line 148: @@ -131,7 +132,7 @@ Three values are measured for a block: Both the real and CPU timings are measured in milliseconds. -Multiple calls to the same block will result in the final values being the sum +Multiple calls to the same block results in the final values being the sum of all individual values. Take this code for example: ```ruby @@ -142,7 +143,7 @@ of all individual values. Take this code for example: end ``` -Here the final value of `sleep_real_time` will be `3`, _not_ `1`. +Here, the final value of `sleep_real_time` is `3`, and not `1`. ## Tracking Custom Events |