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Replit finds Go program loading, not code, causes slow startup

By PulseAugur Editorial · [1 sources] ·

Replit engineers investigated a performance issue where their Universal Package Manager (UPM), written in Go, exhibited slow startup times of around 200 milliseconds. This was surprising given Go's reputation for speed. Through a process of elimination and a debugging technique called the "bug sandwich," they determined that the majority of the delay was not in the Go code itself, but in the program's loading time before execution even began. AI

IMPACT Investigating performance bottlenecks in development tools can lead to faster software delivery cycles.

RANK_REASON Blog post from a company about a performance issue in their internal tooling.

Read on Replit blog →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Replit finds Go program loading, not code, causes slow startup

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Blog post from a company about a performance issue in their internal tooling.
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COVERAGE [1]

  1. Replit blog TIER_1 English(EN) ·

    Performance Mystery: Is Golang's Startup Time Slow?

    We at Replit pride ourselves on a snappy user experience. When I noticed our Universal Package Manager taking a slow ~200 ms to do even the most trivial operations, I took a look. Some context: Universal Package Manager, or UPM, is a package manager that works for a number of Rep…

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