Hi Roman, Yes eventlet works well on PyPy, both Marconi and Swift use it.
Alex On Mon, Sep 9, 2013 at 10:15 PM, Roman Podolyaka <rpodoly...@mirantis.com>wrote: > Hi Alex, > > That's really cool! I believe, performance is not the only benefit we can > get from running OpenStack projects on PyPy. We can also improve the > overall "correctness" of our code (as PyPy behaves differently with > non-closed files, etc), just like compiling of your C/C++ app using > different compilers can show hidden errors. > > And what about eventlet? Does it work well on PyPy? (as it is used in > Nova, Neutron, etc) > > Thanks, > Roman > > > On Tue, Sep 10, 2013 at 12:28 AM, Alex Gaynor <alex.gay...@gmail.com>wrote: > >> Hi all, >> >> Many of you have probably seen me send review requests in the last few >> weeks >> about adding PyPy support to various OpenStack projects. A few people were >> confused by these, so I wanted to fill everyone in on what I'm up to :) >> >> First, for those who aren't familiar with what PyPy is: PyPy is an >> implementation of the Python language which includes a high performance >> tracing >> just-in-time compiler and which is faster than CPython (the reference, >> and most >> widely deployed, implementation) on almost all workloads. >> >> The current status is: >> >> Two major projects work, both Marconi and Swift, Marconi is gating >> against PyPy >> already, Swift isn't yet since I needed to fix a few small PyPy bugs and >> those >> aren't in a release yet, expect it soon :) >> >> In terms of results, I've observed 30% performance improvements on GET >> workloads for Swift under PyPy vs. CPython (other workloads haven't been >> benchmarked tet). I believe the Marconi folks have also observed some >> performance wins, but I'll let them speak to that, I don't have the full >> details. >> >> Many python-clients projects are also working out of the box and gating: >> including novaclient, swiftclient, marconiclient, ceilometerclient, >> heatclient, >> and ironicclient! >> >> There's a few outstanding reviews to add PyPy gating for cinderclient, >> troveclient, and glanceclient. >> >> In terms of future direction: >> >> I'm going to continue to work on getting more projects running and gating >> against PyPy. >> >> Right now I'm focusing a lot of my attention on improving Swift >> performance, >> particularly under PyPy, but also under CPython. >> >> I'm hoping some day PyPy will be the default way to deploy OpenStack! >> >> >> If you're interested in getting your project running on PyPy, or looking >> at >> performance under it, please let me know, I'm always interested in >> helping! >> >> Thanks, >> Alex >> >> -- >> "I disapprove of what you say, but I will defend to the death your right >> to say it." -- Evelyn Beatrice Hall (summarizing Voltaire) >> "The people's good is the highest law." -- Cicero >> GPG Key fingerprint: 125F 5C67 DFE9 4084 >> >> _______________________________________________ >> OpenStack-dev mailing list >> OpenStack-dev@lists.openstack.org >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >> >> > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > -- "I disapprove of what you say, but I will defend to the death your right to say it." -- Evelyn Beatrice Hall (summarizing Voltaire) "The people's good is the highest law." -- Cicero GPG Key fingerprint: 125F 5C67 DFE9 4084
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