[Pharo-project] A tinyBenchmark

Lemuus lemuus at gmail.com
Thu Feb 10 18:27:40 CET 2011


> 2011/2/10 Levente Uzonyi <leves at elte.hu>
>
> On Thu, 10 Feb 2011, Torsten Bergmann wrote:
>>
>>  see http://fbanados.wordpress.com/2011/02/10/a-tinybenchmark
>>>
>>> Maybe Eliot is able to say something here on the main
>>> differences between Cog <-> VW VM.
>>>
>>
>> You made several mistakes:
>> - You didn't post the source code for #tinyBenchmarks. Do all those
>> Smalltalks implement it? Are the implementations equal?
>>
>
> No, they don't implement it. Just Pharo and Squeak. I just added the same
> implementation to Integer in VA, VisualWorks and GNU Smalltalk (
> Integer>>tinyBenchmarks, Integer>>benchmark and Integer>>benchFib), so the
> source code is the same.
>
> - You didn't specify the version numbers for the VMs used. Or if you built
>> them yourself, then the sourcecode + compiler version + configuration
>> parameters. Without these your measurements can't be reproduced.
>>
>
> Every System was the one available from their websites. (Got Pharo 1.2 from
> Hudson about 3 days ago.)  However, VisualWorks is not available from its
> website right now. I installed it from a Cincom CD-ROM I got on Smalltalks
> 2010 .
>
>
>> - There are two different Cog VMs. You didn't specify which one did you
>> use with Pharo.
>>
>
> Smalltalk vmVersion returns 'Croquet Closure Cog VM [CoInterpreter
> VMMaker-oscog.35]').
>
>
>> - You used a CogVM (JIT) with Pharo but SqueakVM (interpreter) with Squeak
>> 4.2. What's even worse is that you based your conclusion on this mistake.
>>
>
> Yes, it is true. Daniel Galdames also pointed this out last night on the
> blog. But as I told before, it is just the benchmarks you get from the
> "download the latest version available" approach. I couldn't find a
> Cog-based Squeak on its ftp site, (perhaps I was too lazy). I won't have the
> time to repeat this until next week, then I'll try this.
>

Squeak 4.2 is cog ready
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