1 person reported

All time, since Oct 24.

aws4 request signing: the first 12,000 calls use 10.1 µs of CPU each on Bun 1.4.4, 7.4 µs on Node 26.12.1 (1.35 times), 71 ms of it on JIT compile threads (Node: 17 ms)

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I hit this bug: rapsheet.dev/sheets/bun/issues/21118/file
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Is this your bug?

Versions: 1.4.4. Still reported on the newest version, 1.4.4.
Platforms: Linux

Not quite your bug?

Parallel GC markers slow workloads2 people

Original reports1, newest first

Oct 24, 2026aws4 request signing: the first 12,000 calls use 10.1 µs of CPU each on Bun 1.4.4, 7.4 µs on Node 26.12.1 (1.35 times), 71 ms of it on JIT compile threads (Node: 17 ms)#46815

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