dump_compressed

# File activesupport/lib/active_support/cache/serializer_with_fallback.rb, line 99
          def dump_compressed(entry, threshold)
            dumped = Marshal.dump(entry.pack)

            if dumped.bytesize >= threshold
              compressed = Zlib::Deflate.deflate(dumped)
              return MARK_COMPRESSED + compressed if compressed.bytesize < dumped.bytesize
            end

            MARK_UNCOMPRESSED + dumped
          end