diff options
Diffstat (limited to 'src/runtime/mheap.go')
| -rw-r--r-- | src/runtime/mheap.go | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/runtime/mheap.go b/src/runtime/mheap.go index 4cf08e46a7..09dc0d51ad 100644 --- a/src/runtime/mheap.go +++ b/src/runtime/mheap.go @@ -195,6 +195,13 @@ type mspan struct { // helps performance. nelems uintptr // number of object in the span. + // startindex is the object index where the owner G started allocating in this span. + // + // This is used in conjunction with nextUsedSpan to implement ROC checkpoints and recycles. + startindex uintptr + // nextUsedSpan links together all spans that have the same span class and owner G. + nextUsedSpan *mspan + // Cache of the allocBits at freeindex. allocCache is shifted // such that the lowest bit corresponds to the bit freeindex. // allocCache holds the complement of allocBits, thus allowing |