Open Stack

On Mon, Sep 9, 2013 at 4:28 PM, Alex Gaynor <alex.gaynor at 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.
>

I'd definitely be curious as to keystone & python-keystoneclient's status,
in terms of potential performance gains or blockers.


>
> 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
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>
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>


-- 

-Dolph
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