/gc/heap/frees-by-size:bytes
		Distribution of freed heap allocations by approximate size.
		Bucket counts increase monotonically. Note that this does not
		include tiny objects as defined by /gc/heap/tiny/allocs:objects,
		only tiny blocks.

	/gc/heap/frees:bytes
		Cumulative sum of heap memory freed by the garbage collector.

	/gc/heap/frees:objects

	export GODEBUG=netdns=go    # force pure Go resolver
	export GODEBUG=netdns=cgo   # force native resolver (cgo, win32)

The decision can also be forced while building the Go source tree
by setting the netgo or netcgo build tag.

A numeric netdns setting, as in GODEBUG=netdns=1, causes the resolver
to print debugging information about its decisions.
To force a particular resolver while also printing debugging information,

	i := 0
	for _, m := range m {
		// determine which methods to include
		switch {
		case m.Decl == nil:
			// exclude conflict entry
		case allMethods, m.Level == 0, !token.IsExported(removeStar(m.Orig)):
			// forced inclusion, method not embedded, or method
			// embedded but original receiver type not exported
			list[i] = m
			i++
		}
	}
	list = list[0:i]
	slices.SortFunc(list, func(a, b *Func) int {

			if c.SecurityContext != nil && c.SecurityContext.ProcMount != nil {
				// The ProcMount field was improperly forced to non-nil in 1.12.
				// If the feature is disabled, and the existing object is not using any non-default values, and the ProcMount field is present in the incoming object, force to the default value.
				// Note: we cannot force the field to nil when the feature is disabled because it causes a diff against previously persisted data.

//		pointer stored in the data word sym(SB), not a function named sym(SB).
//		Encoding: same as above, but type = TYPE_INDIR.
//
//	$*$<mem>
//		No longer used.
//		On machines with actual SB registers, $*$<mem> forced the
//		instruction encoding to use a full 32-bit constant, never a
//		reference relative to SB.
//
//	$<floating point literal>
//		Floating point constant value.
//		Encoding:
//			type = TYPE_FCONST

	// Sweeping must be complete before marking commences, so
	// sweep any unswept spans. If this is a concurrent GC, there
	// shouldn't be any spans left to sweep, so this should finish
	// instantly. If GC was forced before the concurrent sweep
	// finished, there may be spans to sweep.
	for sweepone() != ^uintptr(0) {
	}

	// Make sure there aren't any outstanding sweepers left.

	// The values below can be stored to g.stackguard0 to force
	// the next stack check to fail.
	// These are all larger than any real SP.

	// Goroutine preemption request.
	// 0xfffffade in hex.
	stackPreempt = uintptrMask & -1314

	// Thread is forking. Causes a split stack check failure.
	// 0xfffffb2e in hex.
	stackFork = uintptrMask & -1234

	// Force a stack movement. Used for debugging.
	// 0xfffffeed in hex.

	// with no opportunity to transition.
	//
	// The exception to this rule are goroutines that are concurrently exiting a syscall.
	// Those will all be forced into the syscalling slow path, and we'll just make sure
	// that we don't observe any goroutines in that critical section before starting
	// the world again.
	//

	defer timelog("end", "dist bootstrap")

	var debug, distpack, force, noBanner, noClean bool
	flag.BoolVar(&rebuildall, "a", rebuildall, "rebuild all")
	flag.BoolVar(&debug, "d", debug, "enable debugging of bootstrap process")
	flag.BoolVar(&distpack, "distpack", distpack, "write distribution files to pkg/distpack")
	flag.BoolVar(&force, "force", force, "build even if the port is marked as broken")

	case size == 0:
		buffer = make([]byte, 1) // Allocate at least a byte to reach EOF
	case size == -1:
		if size := data.ActualSize(); size > 0 && size < fi.Erasure.BlockSize {
			// Account for padding and forced compression overhead and encryption.
			buffer = make([]byte, data.ActualSize()+256+32+32, data.ActualSize()*2+512)
		} else {
			buffer = globalBytePoolCap.Load().Get()
			defer globalBytePoolCap.Load().Put(buffer)
		}