pingcap/tidb

Track memory usage in pessimistic locking phase

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#51,217 opened on Feb 21, 2024

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good first issuetype/enhancement

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Description

Enhancement

part of #49643 image The memory consumed in InitCheckExistence in the graph is not tracked by the memory tracker.

Contributor guide

Research direction
Understand the InitCheckExistence function and how memory tracking is implemented in TiDB, then add memory tracking for the pessimistic locking phase.
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.
Mostly clear
Prerequisites
GitGo
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50