AI article
Warmup Did Nothing for My Learning Rate — Then It Fully Rescued the Wrong One
Community description: Learning-rate warmup is the most cargo-culted schedule fragment in deep learning: transformers need it, so everyone ships it. I measured
Dev.to | Nov 4, 2026 | b1ackjack12
Automated excerpt
At the tuned learning rate, warmup is statistical nothing: +0.12 with a t of 0.8 and two wins in five — the same verdict as every knob this blog has audited at a setting that was already right. At the overheated rate, warmup recovers +2.86 of the −2.94 the bad learning rate cost, five wins in five, t of twelve. Warmup didn't push past the ceiling; it returned the run to the ceiling.
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