runtime.MemProfileRecord.FreeBytes (field)

4 uses

	runtime (current package)
		mprof.go#L955: 	AllocBytes, FreeBytes     int64       // number of bytes allocated, freed
		mprof.go#L961: func (r *MemProfileRecord) InUseBytes() int64 { return r.AllocBytes - r.FreeBytes }
		mprof.go#L1079: 	dst.FreeBytes = src.FreeBytes

	runtime/pprof
		pprof.go#L650: 		total.FreeBytes += r.FreeBytes