diff options
Diffstat (limited to 'src/runtime/mstats.go')
| -rw-r--r-- | src/runtime/mstats.go | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/runtime/mstats.go b/src/runtime/mstats.go index 9a247b87b5..9cdc565137 100644 --- a/src/runtime/mstats.go +++ b/src/runtime/mstats.go @@ -199,7 +199,17 @@ type MemStats struct { // StackSys is bytes of stack memory obtained from the OS. // // StackSys is StackInuse, plus any memory obtained directly - // from the OS for OS thread stacks (which should be minimal). + // from the OS for OS thread stacks. + // + // In non-cgo programs this metric is currently equal to StackInuse + // (but this should not be relied upon, and the value may change in + // the future). + // + // In cgo programs this metric includes OS thread stacks allocated + // directly from the OS. Currently, this only accounts for one stack in + // c-shared and c-archive build modes and other sources of stacks from + // the OS (notably, any allocated by C code) are not currently measured. + // Note this too may change in the future. StackSys uint64 // Off-heap memory statistics. |