mstats.go

// 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.

// Memory statistics

package runtime

// Statistics.
// If you edit this structure, also edit type MemStats below.
type mstats struct {
	alloc       uint64
	total_alloc uint64
	sys         uint64
	nlookup     uint64
	nmalloc     uint64
	nfree       uint64

	heap_alloc    uint64
	heap_sys      uint64
	heap_idle     uint64
	heap_inuse    uint64
	heap_released uint64
	heap_objects  uint64

	stacks_inuse uint64
	stacks_sys   uint64
	mspan_inuse  uint64
	mspan_sys    uint64
	mcache_inuse uint64
	mcache_sys   uint64
	buckhash_sys uint64
	gc_sys       uint64
	other_sys    uint64

	next_gc         uint64
	last_gc         uint64
	pause_total_ns  uint64
	pause_ns        [256]uint64
	pause_end       [256]uint64
	numgc           uint32
	gc_cpu_fraction float64
	enablegc        bool
	debuggc         bool

	by_size [_NumSizeClasses]struct {
		size    uint32
		nmalloc uint64
		nfree   uint64
	}

	tinyallocs uint64

	heap_live uint64

	heap_scan uint64

	heap_marked uint64

	heap_reachable uint64
}

// A MemStats records statistics about the memory allocator.
type MemStats struct {
	Alloc      uint64
	TotalAlloc uint64
	Sys        uint64
	Lookups    uint64
	Mallocs    uint64
	Frees      uint64

	HeapAlloc    uint64
	HeapSys      uint64
	HeapIdle     uint64
	HeapInuse    uint64
	HeapReleased uint64
	HeapObjects  uint64

	StackInuse  uint64
	StackSys    uint64
	MSpanInuse  uint64
	MSpanSys    uint64
	MCacheInuse uint64
	MCacheSys   uint64
	BuckHashSys uint64
	GCSys       uint64
	OtherSys    uint64

	NextGC        uint64
	LastGC        uint64
	PauseTotalNs  uint64
	PauseNs       [256]uint64
	PauseEnd      [256]uint64
	NumGC         uint32
	GCCPUFraction float64
	EnableGC      bool
	DebugGC       bool

	BySize [61]struct {
		Size    uint32
		Mallocs uint64
		Frees   uint64
	}
}