ImageOptim / ImageOptim/ImageOptim

Allow parallel Guetzli

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#218 1 comment 0 reactions 0 assignees View on GitHub

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Description

I have an iMac with 24GB RAM and ImageOptim is only running one guetzli thread that uses ~1.5GB per ~15MB jpeg. It would be nice if we could choose our own destiny and allow it to use all cores, rather than forcing a single process.

Btw, thanks for implementing guetzli so quickly, this is great!

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start in imageoptim/Backend/Workers/GuetzliWorker.m at the referenced line and inspect how the single-process limit is enforced. Determine how parallel Guetzli work should be selected, then verify that multiple cores can be used without exceeding the available memory.

Written by the indexing model from the issue text.

Assessment

Tech stack
macos, objective-c
Domain
desktop, performance
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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