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runtime: bump markStackSize

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Every time we overflow the stack, we have to do a full rescan of the heap.  Making this larger
means fewer overflows and thus fewer secondary+ heap scans.
This commit is contained in:
Damian Gryski
2024-10-25 07:24:01 -07:00
committed by GitHub
parent b8420e78bb
commit 9a6397b325
2 changed files with 2 additions and 2 deletions
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src/runtime/gc_blocks.go
+1 -1
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@@ -45,7 +45,7 @@ const (
bytesPerBlock = wordsPerBlock * unsafe.Sizeof(heapStart)
stateBits = 2 // how many bits a block state takes (see blockState type)
blocksPerStateByte = 8 / stateBits
markStackSize = 4 * unsafe.Sizeof((*int)(nil)) // number of to-be-marked blocks to queue before forcing a rescan
markStackSize = 8 * unsafe.Sizeof((*int)(nil)) // number of to-be-marked blocks to queue before forcing a rescan
)
var (