#jython IRC Log

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IRC Log for 2015-05-18

Timestamps are in GMT/BST.

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[12:38] <agronholm> there is now another project under the jython umbrella: https://github.com/jython/swingutils
[12:38] <agronholm> all tests pass on jython 2.7
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[22:46] <jimbaker> agronholm, awesome!
[22:48] <jimbaker> slides i will be presenting tomorrow in the openstack panel on alternative languages (such as go) and implementations (such as jython): https://github.com/jimbaker/talks/blob/master/jython-java-openstack.md - the panel is https://openstacksummitmay2015vancouver.sched.org/event/fec286e14d4a1adb5f38a62f59196112
[22:48] <jimbaker> (i'm in vancouver, somewhat sick with a cold, but hopefully fine enough for tomorrow's panel)
[22:49] <jimbaker> would love for any feedback on my slides
[23:06] <pjenvey> jimbaker - re the panel, I guess some of the rackspacers just tried rewriting parts of openstack swift in go
[23:06] <jimbaker> pjenvey, yeah, this is the hummingbird project
[23:06] <pjenvey> i'd always thought there might be an opportunity for pypy in openstack somewhere to help w/ perf issues
[23:06] <pjenvey> unfortunately there seems to be not too much interest
[23:08] <jimbaker> pjenvey, i think alex gaynor was working on this, but they ran into other issues. this specific chunk of openstack - the swift objectstore which just manages mapping CRUD ops to disk - is particularly suited to what golang supports out of the box
[23:10] <jimbaker> one interesting question is what else is a good target for golang. my personal feeling is that microservices like the object store or stuff like etcd are very good candidates. other stuff, especially integration code, less so
[23:15] <pjenvey> http://lists.openstack.org/pipermail/openstack-dev/2015-May/063619.html
[23:15] * pjenvey wonders if they ran into lack of interest
[23:16] <pjenvey> I don't know enough about swift workloads or how they're using, I assume they're parallelizing more work over multicore
[23:34] <jimbaker> pjenvey, yeah, i think the key issue is that pypy's GIL meant that multicore didn't help, and so they were still working around with multiprocessing
[23:44] <jimbaker> pjenvey, here's a question you might know the answer to - did pypy see a lot of problem in c extension api support because of memory related issues; or is just because of being able to do better inlining?
[23:49] <pjenvey> I know the cpyext uncovered some extensions mismanaging memory that it got away with on cpython
[23:53] <jimbaker> yeah, i'm sure those do exist! it's just too easy to get ref counting wrong :)

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