package runtime
-import "unsafe"
-
// Breakpoint() executes a breakpoint trap.
func Breakpoint()
// Goroutines returns the number of goroutines that currently exist.
func Goroutines() int32
-type MemStatsType struct {
- // General statistics.
- // Not locked during update; approximate.
- Alloc uint64 // bytes allocated and still in use
- TotalAlloc uint64 // bytes allocated (even if freed)
- Sys uint64 // bytes obtained from system (should be sum of XxxSys below)
- Lookups uint64 // number of pointer lookups
- Mallocs uint64 // number of mallocs
- Frees uint64 // number of frees
-
- // Main allocation heap statistics.
- HeapAlloc uint64 // bytes allocated and still in use
- HeapSys uint64 // bytes obtained from system
- HeapIdle uint64 // bytes in idle spans
- HeapInuse uint64 // bytes in non-idle span
- HeapObjects uint64 // total number of allocated objects
-
- // Low-level fixed-size structure allocator statistics.
- // Inuse is bytes used now.
- // Sys is bytes obtained from system.
- StackInuse uint64 // bootstrap stacks
- StackSys uint64
- MSpanInuse uint64 // mspan structures
- MSpanSys uint64
- MCacheInuse uint64 // mcache structures
- MCacheSys uint64
- BuckHashSys uint64 // profiling bucket hash table
-
- // Garbage collector statistics.
- NextGC uint64
- PauseTotalNs uint64
- PauseNs [256]uint64 // most recent GC pause times
- NumGC uint32
- EnableGC bool
- DebugGC bool
-
- // Per-size allocation statistics.
- // Not locked during update; approximate.
- // 61 is NumSizeClasses in the C code.
- BySize [61]struct {
- Size uint32
- Mallocs uint64
- Frees uint64
- }
-}
-
-var sizeof_C_MStats int // filled in by malloc.goc
-
-func init() {
- if sizeof_C_MStats != unsafe.Sizeof(MemStats) {
- println(sizeof_C_MStats, unsafe.Sizeof(MemStats))
- panic("MStats vs MemStatsType size mismatch")
- }
-}
-
-// MemStats holds statistics about the memory system.
-// The statistics are only approximate, as they are not interlocked on update.
-var MemStats MemStatsType
-
// Alloc allocates a block of the given size.
// FOR TESTING AND DEBUGGING ONLY.
func Alloc(uintptr) *byte
// FOR TESTING AND DEBUGGING ONLY.
func Lookup(*byte) (*byte, uintptr)
-// GC runs a garbage collection.
-func GC()
-
// MemProfileRate controls the fraction of memory allocations
// that are recorded and reported in the memory profile.
// The profiler aims to sample an average of
--- /dev/null
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime
+
+import "unsafe"
+
+type MemStatsType struct {
+ // General statistics.
+ // Not locked during update; approximate.
+ Alloc uint64 // bytes allocated and still in use
+ TotalAlloc uint64 // bytes allocated (even if freed)
+ Sys uint64 // bytes obtained from system (should be sum of XxxSys below)
+ Lookups uint64 // number of pointer lookups
+ Mallocs uint64 // number of mallocs
+ Frees uint64 // number of frees
+
+ // Main allocation heap statistics.
+ HeapAlloc uint64 // bytes allocated and still in use
+ HeapSys uint64 // bytes obtained from system
+ HeapIdle uint64 // bytes in idle spans
+ HeapInuse uint64 // bytes in non-idle span
+ HeapObjects uint64 // total number of allocated objects
+
+ // Low-level fixed-size structure allocator statistics.
+ // Inuse is bytes used now.
+ // Sys is bytes obtained from system.
+ StackInuse uint64 // bootstrap stacks
+ StackSys uint64
+ MSpanInuse uint64 // mspan structures
+ MSpanSys uint64
+ MCacheInuse uint64 // mcache structures
+ MCacheSys uint64
+ BuckHashSys uint64 // profiling bucket hash table
+
+ // Garbage collector statistics.
+ NextGC uint64
+ PauseTotalNs uint64
+ PauseNs [256]uint64 // most recent GC pause times
+ NumGC uint32
+ EnableGC bool
+ DebugGC bool
+
+ // Per-size allocation statistics.
+ // Not locked during update; approximate.
+ // 61 is NumSizeClasses in the C code.
+ BySize [61]struct {
+ Size uint32
+ Mallocs uint64
+ Frees uint64
+ }
+}
+
+var sizeof_C_MStats int // filled in by malloc.goc
+
+func init() {
+ if sizeof_C_MStats != unsafe.Sizeof(MemStats) {
+ println(sizeof_C_MStats, unsafe.Sizeof(MemStats))
+ panic("MStats vs MemStatsType size mismatch")
+ }
+}
+
+// MemStats holds statistics about the memory system.
+// The statistics are only approximate, as they are not interlocked on update.
+var MemStats MemStatsType
+
+// GC runs a garbage collection.
+func GC()