Совсем недавно вышел Go 1.27. Я пошел изучать release notes и наткнулся там на следующее:
Faster memory allocation
The compiler now generates calls to size-specialized memory allocation routines, reducing the cost of some small (<80 byte) memory allocations by up to 30%. Improvements vary depending on the workload, but the overall improvement is expected to be ~1% in real allocation-heavy programs. This causes the binary size to increase by about 60 KB (independent of the workload). Please file an issue if you notice any regressions. You may set GOEXPERIMENT=nosizespecializedmalloc at build time to disable it. This opt-out setting is expected to be removed in Go 1.28.
Как-то очень мало текста для такого изменения. Так что давайте разберется вместе.
