diff options
Diffstat (limited to 'src/runtime/mksizeclasses.go')
| -rw-r--r-- | src/runtime/mksizeclasses.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/runtime/mksizeclasses.go b/src/runtime/mksizeclasses.go index ddbf1bf7fe..b1b10e9e02 100644 --- a/src/runtime/mksizeclasses.go +++ b/src/runtime/mksizeclasses.go @@ -239,7 +239,7 @@ func computeDivMagic(c *class) { func printComment(w io.Writer, classes []class) { fmt.Fprintf(w, "// %-5s %-9s %-10s %-7s %-10s %-9s %-9s\n", "class", "bytes/obj", "bytes/span", "objects", "tail waste", "max waste", "min align") prevSize := 0 - var minAligns [32]int + var minAligns [pageShift + 1]int for i, c := range classes { if i == 0 { continue @@ -249,6 +249,10 @@ func printComment(w io.Writer, classes []class) { tailWaste := spanSize - c.size*(spanSize/c.size) maxWaste := float64((c.size-prevSize-1)*objects+tailWaste) / float64(spanSize) alignBits := bits.TrailingZeros(uint(c.size)) + if alignBits > pageShift { + // object alignment is capped at page alignment + alignBits = pageShift + } for i := range minAligns { if i > alignBits { minAligns[i] = 0 |