JuliaAnimators/Javis.jl

[BUG] LaTeX Sometimes Causes High RAM Usage

Open

#212 opened on Sep 29, 2020

View on GitHub
 (0 comments) (0 reactions) (0 assignees)Julia (847 stars) (50 forks)batch import
bugenhancementhelp wantedquestion

Description

Before Filing a Report

  • Did I read the Documentation and/or docstrings?
  • Did I search the Javis GitHub to see if this bug has already been reported?
  • Am I familiar with the Javis philosophy?

Describe the bug

This is a strange bug that still has not been figured out yet. Every once in a while, Javis animations that are rather large and that utilize LaTeX cause excessive RAM usage. The error seems to be coming from the main latex function written in Javis but doesn't always cause this problem. To Reproduce

  1. Julia Version (i.e. output of julia -v): 1.5

  2. Operating system (Mac, Linux, Windows): Linux (Arch and Fedora) but probably all others

  3. Minimum working code example that led to bug: https://gist.github.com/Wikunia/d19e1447d4e59c18fe4f0e629345e9fa

Expected Behavior and Actual Behavior

We expect that after each execution of creating an animation, the buffer of one's computer is cleared and the RAM is no longer being taxed. Instead, the RAM sometimes remains in heavy use.

Screenshots

(Will be added)

Contributor guide

Tech stack
None
Domain
performance
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
needs investigation
Prerequisites
Juliamemory managementJavis.jl internalsLaTeX integration
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
15
Research direction
The bug is intermittent and causes high RAM usage with LaTeX animations. Investigate the `latex` function in Javis.jl (likely in src/latex.jl). The reproduction code is at https://gist.github.com/Wikunia/d19e1447d4e59c18fe4f0e629345e9fa. Focus on memory buffer clearing after each frame. Also check if Julia's garbage collector is being triggered properly. Consider adding memory profiling to trace the leak.