Hi, just a quick check: do I have the approval of the Porters Group to put forward this proposal for a vote?
Thank you and best regards, Volker On Mon, May 9, 2016 at 2:51 PM, David Edelsohn <dje....@gmail.com> wrote: > Hi, Volker > > This is a pleasant surprise. If SAP has a complete OpenJDK port for > s390x and are willing to contribute it, that would be great! Please > inquire about that option. There is no reason to duplicate effort and > re-implement the entire port. > > If you can make fast enough progress on the approvals, could this be > contributed for JDK 9? > > Again, thanks for the alerting us to this port and for the offer to > contribute it. > > Thanks, David > > On Mon, May 9, 2016 at 8:19 AM, Volker Simonis <volker.simo...@gmail.com> > wrote: >> Hi everybody, >> >> my name is Volker Simonis and I'm the project lead of the PowerPC/AIX >> porting project. I'm writing from my Google mail account for historic >> reasons (I've been an OpenJDK contributor before SAP was) but I think >> it is no secret that I'm working for SAP :) >> >> We have a complete (i.e. template interpreter, C1 and C2 JIT) and >> certified (Java 4-8) s390x port which is used in production since >> years. It is based on the our commercially licensed HotSpot sources >> but the s390x port is completely written and owned by SAP. >> >> We haven't thought about contributing it to the OpenJDK until now >> because we didn't expect any interest from the community :) >> >> I can not make any commitments now, but if there really is any >> interest in such a port (and this email thread indicates that there is >> :) we may reconsider our decision. >> >> From a technical point of view and with the experience we gained with >> the PowerPC/AIX Port I think the s390x port could be integrated into >> the OpenJDK quite smoothly (there are considerably less shared changes >> required compared to the PowerPC/AIX port). >> >> So if this sounds reasonable, I could begin to get the internal >> approvals so we can get the project started. >> >> Regards, >> Volker >> >> On Fri, May 6, 2016 at 3:24 PM, David Edelsohn <dje....@gmail.com> wrote: >>> On Fri, May 6, 2016 at 7:25 AM, dalibor topic <dalibor.to...@oracle.com> >>> wrote: >>>> Hi David, >>>> >>>> thank you for your proposal. As usual, I have a few questions in order to >>>> better understand the Project being proposed. >>>> >>>> On 05.05.2016 14:48, David Edelsohn wrote: >>>>> >>>>> [Sorry if this is a duplicate. An earlier message is awaiting moderation.] >>>>> >>>>> I would like to propose the creation of a new project to port OpenJDK >>>>> to IBM z/Architecture (s390x). >>>> >>>> >>>> I noticed that you sent the proposal from a gmail address, while a person >>>> of >>>> the same name seems to work [0] at IBM, who happen to produce s390x >>>> architecture machines. Do you happen to be the same person by chance? If >>>> so, >>>> would you be contributing to this Project on behalf of IBM, or on your own >>>> behalf? >>> >>> Hi, Dalibor >>> >>> Yes, I am the same person. I prefer this email address for >>> discussions with Open Source projects. I sent the feature request from >>> my official IBM email address to confirm that this request originates >>> from IBM and that IBM supports this effort. >>> >>> IBM itself will not contribute the port. I will not contribute this >>> port myself -- neither as an IBM employee nor on my own behalf. >>> >>>> >>>> Could you elaborate a bit on the nature of the development work: >>>> >>>> * Who would be in the initial set of the Project's Committers? >>> >>> The port will be developed by Marcin Kościelnicki. >>> >>>> * Would you have Reviewers on the Project? >>> >>> Yes, there will be IBMers who will assist with reviews of the proposed >>> patches. >>> >>>> * Would you be starting from scratch within the new OpenJDK Project, or >>>> are >>>> you looking at bringing an already existing, internal port in? >>> >>> This is a new port starting from scratch. >>> >>>> * In the latter case, does the code you'd like to contribute to the port >>>> have any third party dependencies? >>> >>> N/A >>> >>>> * In the former case, are you aware of the Open Mainframe Project, which >>>> seems to intend to produce a JIT for OpenJDK, as well? [1] >>> >>> This proposal is in conjunction with the Open Mainframe Project TSC for >>> OpenJDK. >>> >>>> * Which JDK release would you plan to target initially? >>> >>> I believe that the goal is inclusion in OpenJDK 9. I welcome your >>> advice and guidance about this issue. >>> >>>> >>>>> The proposal is support for s390x z12 on LinuxONE (Linux on IBM z >>>>> Systems). The support would include the C++ interpreter, the template >>>>> interpreter, and the C2 compiler. >>>> >>>> >>>> OK. I assume that C1 is not something your port needs, or is it something >>>> you'll consider for a later iteration? >>> >>> C1 is not needed. We may consider it in the future, depending on >>> market and/or customer requirements. >>> >>>> >>>>> I have submitted an enhancement request that has been assigned review >>>>> ID JI-9036871. I am hoping that it will be assigned an official JIRA >>>>> issue and allow OpenJDK Bug System access. >>>> >>>> >>>> That issue is now https://bugs.openjdk.java.net/browse/JDK-8156104 . It's >>>> also been marked as closed, as there is no need to submit issues to create >>>> new Projects. The process is documented at >>>> http://openjdk.java.net/projects/#new-project . >>>> >>>> When a new Project is created, its Project Lead, Committers, Reviewers and >>>> Authors get write access to the JDK Bug System within their Project. >>> >>> Thanks. >>> >>> IBM has very successfully utilized bounties[2] to enable and optimize >>> many Open Source packages on LinuxONE (and POWER). We plan to >>> continue with that methodology for this project with multiple feature >>> requests in JIRA corresponding to different components / phases of the >>> project to enable OpenJDK. >>> >>> Thanks for your help with the process to formally create this project. >>> Your guidance is greatly appreciated. >>> >>> Thanks, David >>> >>> [2] https://www.bountysource.com/teams/ibm/bounties
