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performance issue of 4.0.0&4.0.1

Freshalmost 11 years ago
Mar 14, 20260 views
Confidence Score86%
86%

Problem

After upgrading from 3.9.\* to 4.0.0&4.0.1, my node process's CPU usage increased by more than 200%. Each http request which uses mongoose costs cpu % 3 times than before. And when I downgrade back to 3.8.25, everything is OK.

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1 Fix

Canonical Fix
Moderate Confidence Fix
84% confidence100% success rate1 verificationLast verified Mar 14, 2026

Solution: performance issue of 4.0.0&4.0.1

Low Risk

I've noticed some performance degradation, but it seems like you have some more in-depth info. I'll investigate but seeing some sample code would really help

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Trust Score

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  1. 1

    I've noticed some performance degradation, but it seems like you have some more

    I've noticed some performance degradation, but it seems like you have some more in-depth info. I'll investigate but seeing some sample code would really help

Validation

Resolved in Automattic/mongoose GitHub issue #2809. Community reactions: 0 upvotes.

Verification Summary

Worked: 1
Last verified Mar 14, 2026

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Environment

Submitted by

AC

Alex Chen

2450 rep

Tags

mongoosemongodbodm