Re: Lots of changes integrated, 2.1.0 release coming soon
On Mon, Apr 27, 2009 at 10:09 AM, Yegor yegor.jba...@gmail.com wrote: Hi, Kenton, In the Python version there are now two versions of InputStream, one buffer-based, the other one array-based, for compatibility with App Engine-like environments. Do you know how big the performance penalty is for using array-based InputStream in protobuf context? It depends on the specific case. Those that I have seen (mostly with not very deeply nested messages) are take ~2% longer to SerializeFromString/MergeFromString. I suppose deeper nested messages will be slower to SerializeFromString/MergeFromString but I don't have concrete numbers. Thanks, Yegor On Apr 24, 9:01 pm, Kenton Varda ken...@google.com wrote: Hi all, I just updated SVN (rev 120) with a large bundle of changes recently made to our internal copy of the code. The easiest way to see what's new is to look at the diff of CHANGES.txt: http://code.google.com/p/protobuf/source/diff?spec=svn120r=120forma... Most of the changes probably won't affect most users (aside from optimizations which silently affect you). There are a couple obscure source-incompatible changes. For example, C++'s UnknownFieldSet has been redesigned for efficiency, and its interface has changed as a result. Most users do not use UnknownFieldSet directly, so this is unlikely to affect many people, but if you do, then you'll need to update your code. Sorry -- the previous design of UnknownFieldSet was really poor, and we saw no way around changing the API here. The next release of protocol buffers will be version 2.1.0, possibly with the beta tag like 2.0.0 had. Given all the changes, I imagine a few bugs have been introduced somewhere in there. I hope to get a release candidate out next week, followed by a real release shortly after. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Lots of changes integrated, 2.1.0 release coming soon
I don't know much about Python. Petar, do you know? On Mon, Apr 27, 2009 at 10:09 AM, Yegor yegor.jba...@gmail.com wrote: Hi, Kenton, In the Python version there are now two versions of InputStream, one buffer-based, the other one array-based, for compatibility with App Engine-like environments. Do you know how big the performance penalty is for using array-based InputStream in protobuf context? Thanks, Yegor On Apr 24, 9:01 pm, Kenton Varda ken...@google.com wrote: Hi all, I just updated SVN (rev 120) with a large bundle of changes recently made to our internal copy of the code. The easiest way to see what's new is to look at the diff of CHANGES.txt: http://code.google.com/p/protobuf/source/diff?spec=svn120r=120forma... Most of the changes probably won't affect most users (aside from optimizations which silently affect you). There are a couple obscure source-incompatible changes. For example, C++'s UnknownFieldSet has been redesigned for efficiency, and its interface has changed as a result. Most users do not use UnknownFieldSet directly, so this is unlikely to affect many people, but if you do, then you'll need to update your code. Sorry -- the previous design of UnknownFieldSet was really poor, and we saw no way around changing the API here. The next release of protocol buffers will be version 2.1.0, possibly with the beta tag like 2.0.0 had. Given all the changes, I imagine a few bugs have been introduced somewhere in there. I hope to get a release candidate out next week, followed by a real release shortly after. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
