[DUG] EMBARCADERO MY GRIPE

Thu Jul 30 11:11:08 NZST 2015

Hi Jolyon,

The fastest code on android is native code which is compiled by c code.
Xamarin Android is based on runtime library which I guess is compiled in C
too. Microsoft's net framework is compile .net code into native code before
run the byte code on the real device.

Regards
Leigh

On 30 July 2015 at 11:07, Leigh Wanstead <leigh.wanstead at gmail.com> wrote:

> Hi Jolyon,
>
> If network round trip time has little or nothing to do with framework, how
> you explain that url get different time from different framework? I will
> assume that they will get similar time spent to get data on all framework.
>
> Dalvik platform is slow which is agree by google. Dalvik is slower than
> Sun's jdk on mobile platform I read somewhere on internet. The
> consideration for dalvik is not speed, but app size.
>
> Regards
> Leigh
>
> On 30 July 2015 at 09:06, Jolyon Smith <jsmith at deltics.co.nz> wrote:
>
>> But Leigh, network round trip times have little or nothing to do with
>> Mono / Dalvik / ART.
>>
>> I shall leave the last word on Xamarin to someone else...
>> http://www.whitneyland.com/2015/07/xamarin-review-2015.html
>>
>> I would also recommend reading the earlier post from the same author.
>>
>> Worth noting in these round-ups is the point about the lack of community
>> assistance when it comes to finding Xamarin solutions to common platform
>> issues (as opposed to the bugs and issues in Xamarin itself).  As mentioned
>> before, RemObjects Elements avoids this problem due to the fact that the
>> solutions for Java / Objective-C from the "native" communities for those
>> platforms, can be applied *directly* in Elements projects in a way that
>> is not often possible with Xamarin.
>>
>> On 29 July 2015 at 15:57, Leigh Wanstead <leigh.wanstead at gmail.com>
>> wrote:
>>
>>> Hi Jolyon,
>>>
>>> It seems that we are going through the benchmark way :-)
>>>
>>> I tried to run the app in the url you mentioned and it crashed.
>>>
>>> How about you look at this url?
>>> http://magenic.com/Blog/Post/4/Mobile-Development-Platform-Performance
>>>
>>> My work is getting data from server which is similar to test 3.
>>> java version shows 2.369s and xamarin version shows 1.738s in that url.
>>> That is around half seconds difference.
>>>
>>> I sometimes got around less than 70ms round trip time in my own test to
>>> get data from server in sydney, Australian in north shore, Auckland, nz if
>>> the server is not busy. That is amazing fast using Xamarin android.
>>>
>>> Most customers are in Australia. I guess that they might get around 50ms
>>> round trip time.
>>>
>>> Regards
>>> Leigh
>>>
>>>
>>> On 29 July 2015 at 14:42, Jolyon Smith <jsmith at deltics.co.nz> wrote:
>>>
>>>> ... and if only I had a million dollars I would be rich.
>>>>
>>>>
>>>> As for Xamarin performance, consider the source.  By which I don't mean
>>>> the code, I mean who is making what claims.
>>>>
>>>>
>>>> http://stackoverflow.com/questions/17134522/does-anyone-have-benchmarks-code-results-comparing-performance-of-android-ap
>>>>
>>>> Any advantage is only seen in an Intel Android VM.  On ARM (by far the
>>>> most prevalent in terms of actual Android hardware), Dalvik beat Xamarin
>>>> almost every time, until Xamarin.Android 4.7.11.
>>>>
>>>> What is odd about this is that these results are from 2013, over a year
>>>> after Xamarin posted their claims about *astonishingly* superior
>>>> performance vs Dalvik.  It is interesting that Xamarin do not disclose what
>>>> environment their benchmarks were run in.  Also interesting that they do
>>>> not compare themselves to ART which is the more relevant comparison going
>>>> forward.
>>>>
>>>> In any event, I don't think there is any chance that Google will drop
>>>> ART any time soon (they already dropped Dalvik) in favour of a Mono based
>>>> implementation of Android.  ;)
>>>>
>>>>
>>>>
>>>> On 29 July 2015 at 13:51, Leigh Wanstead <leigh.wanstead at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi Jolyon,
>>>>>
>>>>> I mentioned to you before in the thread. If google choose to use mono
>>>>> framework in android, xamarin apk size can reach several kb too. The reason
>>>>> for me to use Xamarin is the app developed by Xamarin using mono framework
>>>>> is faster than dalvik before ART time. The load time for the app is not my
>>>>> main concern. I care about the speed running the app for whole lifecycle.
>>>>> Here is the url https://blog.xamarin.com/android-in-c-sharp/
>>>>>
>>>>> Regards
>>>>> Leigh
>>>>>
>>>>> On 29 July 2015 at 13:40, Jolyon Smith <jsmith at deltics.co.nz> wrote:
>>>>>
>>>>>> What a fabulous attitude.  It's thanks to that sort of thinking
>>>>>> that we now "need" machines with quad core 2.5GHz processors and 8GB of RAM
>>>>>> just to run frikkin MS Word.
>>>>>>
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>>>>>
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