Yes. I first write the length of the byte array and then write the byte array all at once.
I don't really understand why the results are completely different when using RMI. So you assume Java is doing some optimization? On Aug 28, 4:05 am, Kenton Varda <ken...@google.com> wrote: > Did you try what I suggested before -- serializing to a byte array instead, > and then writing that to the stream all at once? > It's possible that ObjectOutputStream itself is just really slow, but that > when using native Java serialization it uses special, highly-optimized code > paths. > > On Thu, Aug 27, 2009 at 7:56 AM, Tai <maitai.tru...@gmail.com> wrote: > > > Hi, > > > I did some similar performance tests based on that: > >http://thrift-protobuf-compare.googlecode.com/svn > > > My tests runs under Java and uses Protocol Buffers 2.2.0. > > > Basically I am comparing Java Serialization vs. Protocol buffers with > > byte size, serialization and deserialization and my results are > > similar to the performance results as stated here: > >http://www.eishay.com/2009/03/more-on-benchmarking-java-serialization... > > > For serialization I use ByteArrayOutputStream (data stream in > > ObjectOutputStream) and for deserialization its counterpart: > > ByteArrayInputStream (data stream in ObjectInputStream). > > > But doing the performance test under RMI the performance results are > > totally different. Here Protocol Buffers is slower(!) than Java > > Serialization. > > > The only difference I can see is that it uses for serialization a > > BufferedOutputStream (in ConnectionOutputStream) and a DataInputStream > > (in ConnectionInputStream). > > > Does anybody know why that is so? > > > Tai --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To post to this group, send email to protobuf@googlegroups.com To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/protobuf?hl=en -~----------~----~----~----~------~----~------~--~---
