Use singleton for null telemetry objects in NullTelemetryFactory #1188
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…emetry objects, reducing memory allocations.
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Hi @johnou Thank you for looking into that! |
sergiyvamz
approved these changes
Nov 13, 2024
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Summary
While testing our application for regressions in performance after adopting aws-advanced-jdbc-wrapper we found a lot of useless allocations from the NullTelemetryFactory [1].
[1]
Description
Refactored NullTelemetryFactory to use a singleton instance for NullTelemetryContext, TelemetryCounter, and TelemetryGauge, eliminating repeated object creation and reducing memory allocations.
I also considered using a caching approach but opted for the singleton pattern to further simplify the code and minimize memory churn. I verified software.amazon.jdbc.util.telemetry.NullTelemetryContext#getName is not used in any code paths.
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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.