alibaba/sentinel-golang

Improve performance of util.CurrentTimeMillis() adaptively under different load conditions

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#419 opened on Jul 22, 2021

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area/performancegood first issuekind/enhancement

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Description

Issue Description

Type: feature request

Describe what feature you want

Improve performance (CPU footprint) of util.CurrentTimeMillis() adaptively under different load conditions. Current design of TimeUtil may cost much more than users think in mind in idle systems.

Additional context

Refer https://github.com/alibaba/Sentinel/pull/1746

Contributor guide

Research direction
Investigate current implementation of util.CurrentTimeMillis() and propose an adaptive approach to reduce CPU footprint under low load.
Tech stack
go
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Go
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60