runtime.MemProfileRecord.FreeBytes (field)

4 uses

	runtime (current package)
		mprof.go#L891: 	AllocBytes, FreeBytes     int64       // number of bytes allocated, freed
		mprof.go#L897: func (r *MemProfileRecord) InUseBytes() int64 { return r.AllocBytes - r.FreeBytes }
		mprof.go#L1015: 	dst.FreeBytes = src.FreeBytes

	runtime/pprof
		pprof.go#L642: 		total.FreeBytes += r.FreeBytes