[Vm-dev] StackVM with latest sources tinyBenchmarks

[Esteban Lorenzano]

ok, I forget that

On Feb 19, 2013, at 7:50 PM, Eliot Miranda <eliot.miranda at gmail.com> wrote:

> 
> Hi All,
> 
>    kudos to Nicolas for posting some useful numbers in that they
> provide some context, in this case the other VMs running on the same
> machine.  But wrist slaps to all of you for not specifying:
> 
> 1. which OS

osx 10.8

> 2. what hardware

i7 8gb

> 3. what C compiler was used to compile the VM

4.6.3

> 
> Further kudos for indicating what kind of load the machine is under
> (one has to run benchmarks on a relatively unstressed machine, even if
> multicore), and, *really usefully*, what a previous version's
> benchmark score is on the same machine.

no matter the load. 
It is a comparative analysis: stackvm pre-merge with latest: 500 msends, after merge: 5msend... since I did not changed my mac for an ipad, the sends cannot be right. Also... 10% passive cpu usage is wrong, no matter the machine load. 


> Nicolas' results, Cog ~= 6.5x Interpreter, Stack ~= 1.75x Interpreter
> are exactly what one should expect for nfib (the sends/sec part of
> tinyBenchmarks) with the current Cog architecture.

yep... so where is the stack vm made with latest sources? (it is not in http://www.mirandabanda.org/files/Cog/VM/VM.r2678/)

> 
> On Sun, Feb 17, 2013 at 9:21 AM, Nicolas Cellier
> <nicolas.cellier.aka.nice at gmail.com> wrote:
>> 
>> This is not confirmed in regular svn cog branch
>> 
>> 1 tinyBenchmarks
>> '380 669 144 bytecodes/sec; 10 473 620 sends/sec' Interpreter VM
>> '371 014 492 bytecodes/sec; 18 512 525 sends/sec' Stack VM
>> '656 410 256 bytecodes/sec; 67 802 547  sends/sec' Cog VM
>> 
>> Nicolas
>> 
>> 2013/2/15 Igor Stasenko <siguctua at gmail.com>:
>>> 
>>> On 15 February 2013 14:49, Esteban Lorenzano <estebanlm at gmail.com> wrote:
>>>> 
>>>> Hi,
>>>> 
>>>> I just compiled a cog vm and a stack vm with latest sources.
>>>> While the cog works well, the stack vm is having a serious performance drawback, tinyBenchmarks is giving me 5m bytecodes/s, while it should be around 500m... also I see the cpu charge increases to double.
>>>> 
>>>> Do you tried to compile a stack vm lately? any idea where to start look for bugs?
>>>> 
>>> 
>>> just tried on my machine.. the results is discouraging:
>>> 
>>> 1 tinyBenchmarks '4648460 bytecodes/sec; 337199 sends/sec'
>>> 
>>>> thanks,
>>>> Esteban
>>> 
>>> 
>>> 
>>> --
>>> Best regards,
>>> Igor Stasenko.
> 
> 
> 
> -- 
> best,
> Eliot

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