[self-interest] Performance figures interesting

[David Ungar]

I recently ran some numbers; the SPARC Self VM was about 3x more  
efficient,
clock-for-clock, than the PPC version.
Lets of reasons....
I also suspect that the Self version of the benchmark may be  
"running" many more bytecodes
than the Smalltalk one--but haven't looked at this very carefully.

- David


On May 9, 2006, at 9:11 PM, Michael Latta wrote:

> Io looks interesting, but misses a few things I really like in  
> Smalltalk
> (user defined control structures using blocks primarily).  Having  
> compact
> syntax for things like collect: detect: and to:by:do: or any I  
> choose to
> make up for my application is very high on my list.  I can use  
> Smalltalk to
> build a domain specific language by just modeling it.
>
> The figure for Self is using the Sun VM that is about 10 years old  
> with some
> cleanup since.  I am glad you can get better numbers in your VM.   
> There may
> be something in the microbenchmark that is pathological to the Self  
> VM way
> of doing things.  If it never saw it as a hotspot it may have  
> interpreted
> the entire benchmark even with repeated executions.
>
> Michael
>
>
> -----Original Message-----
> From: self-interest at yahoogroups.com [mailto:self- 
> interest at yahoogroups.com]
> On Behalf Of Steve Dekorte
> Sent: Tuesday, May 09, 2006 8:53 PM
> To: self-interest at yahoogroups.com
> Subject: Re: [self-interest] Performance figures interesting
>
>
> On 9 May 2006, at 02:08 pm, Michael Latta wrote:
>> PowerMac G5 2.0Ghz w/4GB 400Mhz memory
>> Self ... 879023 sends/sec'
>
> That doesn't seem right. On a 2.5Ghz G5 w/1GB, Io can do 3.7 million
> sends per second (by send, I mean a dynamic lookup and a block/method
> activation).
>
> This page shows numbers for Ruby and Python on the same machine:
>
> 	http://www.iolanguage.com/about/speed/basic/ppc/
>
> And for x86:
>
> 	http://www.iolanguage.com/about/speed/basic/x86/
>
> -- Steve
>
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