diff options
| -rw-r--r-- | src/runtime/mstats.go | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/runtime/mstats.go b/src/runtime/mstats.go index 2699e08b3..7a6f8e637 100644 --- a/src/runtime/mstats.go +++ b/src/runtime/mstats.go @@ -9,6 +9,11 @@ package runtime type MemStats struct { // General statistics. + // Alloc is bytes of allocated heap objects. + // + // This is the same as HeapAlloc (see below). + Alloc uint64 + // Sys is the total bytes of memory obtained from the OS. // // Sys is the sum of the XSys fields below. Sys measures the @@ -18,6 +23,19 @@ type MemStats struct { // Heap memory statistics. + // HeapAlloc is bytes of allocated heap objects. + // + // "Allocated" heap objects include all reachable objects, as + // well as unreachable objects that the garbage collector has + // not yet freed. Specifically, HeapAlloc increases as heap + // objects are allocated and decreases as the heap is swept + // and unreachable objects are freed. Sweeping occurs + // incrementally between GC cycles, so these two processes + // occur simultaneously, and as a result HeapAlloc tends to + // change smoothly (in contrast with the sawtooth that is + // typical of stop-the-world garbage collectors). + HeapAlloc uint64 + // HeapSys is bytes of heap memory, total. // // In TinyGo unlike upstream Go, we make no distinction between |