Re: [xmlvm-users] One small XMLVM benchmark

[Steve H. <st...@we...>]

On Thursday, December 6, 2012, Steve Hannah wrote:

> Optimizations were on for both.  The problem is that the original test
> didn't modify anything outside the function so the optimization could
> potentially be reduced down to NOOP with gcc.
>
> I needed to change the test case so that it modified something outside
> itself so the code actually had to be run.
>
> Avian doesn't have all the optimizations that gcc has so it wasn't able to
> "cheat" at all in the first test.  It ran the benchmark faithfully.
>
> That said, the xmlvm version didn't cheat much either, compared to the
> native c version.
>
> Steve
>
> On Thursday, December 6, 2012, Panayotis Katsaloulis wrote:
>
>> What if you turn on optimizations for both test cases?
>>
>> If one supports full optimizations (and is much more faster) than the
>> other - although it might sound unfair - the final result is that one is
>> faster and the other is not.
>> At the end of the day, nobody cares about all the transformations the
>> code has to pass - the only important thing is the final execution speed.
>>
>>
>> On Fri, Dec 7, 2012 at 12:59 AM, Steve Hannah <st...@we...> wrote:
>>
>>> Just a small update.  As it turns out, my first benchmark was flawed
>>> because it allowed GCC/LLVM to optimize it more than was fair.  After
>>> revising the algorithm to force GCC/LLVM to play by the rules I found that
>>> Avian edged out XMLVM by about 15% in speed.  They were both slower than
>>> the native C implementation by a factor of about 2.
>>>
>>> This doesn't change, at all, my overall impression that XMLVM is quite
>>> fast and that the potential is very far reaching.
>>>
>>> I wrote about the revised benchmarks on my blog at
>>> http://sjhannah.com/blog/?p=226
>>>
>>> Keep up the great work!
>>>
>>> -Steve
>>>
>>> On Thu, Dec 6, 2012 at 10:20 AM, Paul Poley <bay...@gm...>wrote:
>>>
>>>> Interesting news.  Nice write up!
>>>>
>>>> Paul
>>>>
>>>> On Mon, Dec 3, 2012 at 12:15 PM, Steve Hannah <st...@we...> wrote:
>>>>
>>>>> I just wanted to drop a line into this list to thank you guys for your
>>>>> work.  I have been playing around with CodenameOne recently to try to build
>>>>> a port that runs on Avian (an AOT java compiler) because I had a hunch that
>>>>> it would be faster than the code produced by XMLVM (which is their default
>>>>> solution for iOS).
>>>>>
>>>>> I was wrong.  Running a simple test on the Towers of Hanoi problem on
>>>>> an app that was built separately using XMLVM and Avian I found that the
>>>>> XMLVM build was actually slightly faster than the Avian AOT compiled binary.
>>>>>
>>>>> I wrote about my experiment in my blog at
>>>>> http://sjhannah.com/blog/?p=225
>>>>>
>>>>> Anyways.  Incredible work.  The potential of this project is quite
>>>>> far-reaching.
>>>>>
>>>>> -Steve
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> Keep yourself connected to Go Parallel:
>>>>> BUILD Helping you discover the best ways to construct your parallel
>>>>> projects.
>>>>> http://goparallel.sourceforge.net
>>>>> _______________________________________________
>>>>> xmlvm-users mailing list
>>>>> xml...@li...
>>>>> https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>>>>>
>>>>>
>>>>
>>>
>>>
>>> --
>>> Steve Hannah
>>> Web Lite Solutions Corp.
>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial
>>> Remotely access PCs and mobile devices and provide instant support
>>> Improve your efficiency, and focus on delivering more value-add services
>>> Discover what IT Professionals Know. Rescue delivers
>>> http://p.sf.net/sfu/logmein_12329d2d
>>> _______________________________________________
>>> xmlvm-users mailing list
>>> xml...@li...
>>> https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>>>
>>>
>>
>>
>> --
>> Panayotis Katsaloulis
>>
>>
>
> --
> Steve Hannah
> Web Lite Solutions Corp.
>
>

-- 
Steve Hannah
Web Lite Solutions Corp.