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runtime: rewrite a comment in malloc.go #37008

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runtime: rewrite a comment in malloc.go #37008

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7 changes: 4 additions & 3 deletions src/runtime/malloc.go
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Original file line number Diff line number Diff line change
Expand Up @@ -62,9 +62,10 @@
// Allocating and freeing a large object uses the mheap
// directly, bypassing the mcache and mcentral.
//
// Free object slots in an mspan are zeroed only if mspan.needzero is
// false. If needzero is true, objects are zeroed as they are
// allocated. There are various benefits to delaying zeroing this way:
// If mspan.needzero is false, then free object slots in the mspan are
// already zeroed. Otherwise if needzero is true, objects are zeroed as
// they are allocated. There are various benefits to delaying zeroing
// this way:
//
// 1. Stack frame allocation can avoid zeroing altogether.
//
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