Performance regression in @lingui/cli version 5.5.2

[vitexikora]

Description

Running lingui extract used to take only few seconds with @lingui/cli version up to 5.5.1.
After updating to 5.5.2 (or 5.6.0), it now takes almost a minute

Tried also on the very same codebase, installing @lingui/cli@5.5.1 and @lingui/cli@5.5.2 (nothing else changed) makes a huge difference. On my other machine, the times are 6s and 60s.

What could have caused this performance regression? I understand you possibly cannot reproduce this, but there must be some kind of hint, what can cause this in patch version with a small number of changes.

Verifications

• I've checked the docs and this isn't covered there.
• I've searched existing issues on GitHub.

Reproduction Steps

lingui extract

Expected Behavior

Same or at least similar execution time.

Macro Support

SWC with @lingui/swc-plugin

Lingui Version

5.5.1, 5.5.2, 5.6.0

Babel Version

No response

Framework

Rspack

[timofei-iatsenko]

Try to set --workers 1 and check the result

[timofei-iatsenko]

Or it could be related to this one #2356 (merged in 5.5.2) let's check workers first, and then proceed with an investigation

[vitexikora]

Results on my workmachine with a 4/4 CPU. Averages of multiple runs (but the duration was rather stable).

Lingui 5.5.1

• lingui extract: 9s
• lingui extract --workers 1: 6s
• lingui extract --workers 4: 8s

Lingui 5.5.2

• lingui extract: 67s
• lingui extract --workers 1: 70s
• lingui extract --workers 4: 65s

Observation: setting the workers flag had little effect on execution time or CPU utilization (it was always around 25%, so single-core).