diff options
Diffstat (limited to 'src/runtime/mprof.go')
| -rw-r--r-- | src/runtime/mprof.go | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/runtime/mprof.go b/src/runtime/mprof.go index cd781c4416..2bd09b6a26 100644 --- a/src/runtime/mprof.go +++ b/src/runtime/mprof.go @@ -315,6 +315,27 @@ func mProf_FlushLocked() { } } +// mProf_PostSweep records that all sweep frees for this GC cycle have +// completed. This has the effect of publishing the heap profile +// snapshot as of the last mark termination without advancing the heap +// profile cycle. +func mProf_PostSweep() { + lock(&proflock) + // Flush cycle C+1 to the active profile so everything as of + // the last mark termination becomes visible. *Don't* advance + // the cycle, since we're still accumulating allocs in cycle + // C+2, which have to become C+1 in the next mark termination + // and so on. + c := mProf.cycle + for b := mbuckets; b != nil; b = b.allnext { + mp := b.mp() + mpc := &mp.future[(c+1)%uint32(len(mp.future))] + mp.active.add(mpc) + *mpc = memRecordCycle{} + } + unlock(&proflock) +} + // Called by malloc to record a profiled block. func mProf_Malloc(p unsafe.Pointer, size uintptr) { var stk [maxStack]uintptr |