[Vm-dev] Dalvik vs. ART: Android virtual machines and the battle for better performance | Pocketnow

[Eliot Miranda]

On Thu, Dec 12, 2013 at 2:53 PM, Nicolas Cellier <
nicolas.cellier.aka.nice at gmail.com> wrote:

>
> But he said increase in speed, not performance.
>

Same argument.  What does it mean to complete a task 100% faster?  What
does it mean to reach your destination 100% faster?


>
>
> 2013/12/12 Eliot Miranda <eliot.miranda at gmail.com>
>
>>
>>
>>
>>
>> On Thu, Dec 12, 2013 at 1:23 PM, Nicolas Cellier <
>> nicolas.cellier.aka.nice at gmail.com> wrote:
>>
>>>
>>> I would interpret twice as fast, and that's only 50% rather than 100%
>>> reduction of execution time :)
>>>
>>
>> relative performance = new time - old time / old time.
>> 2x = -50%
>> 3x = -75%
>> etc
>>
>> -100% means new time = 0, and performance is infinite.
>>
>>
>>>
>>>
>>> 2013/12/12 Eliot Miranda <eliot.miranda at gmail.com>
>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Thu, Dec 12, 2013 at 1:08 PM, phil at highoctane.be <phil at highoctane.be
>>>> > wrote:
>>>>
>>>>>
>>>>>
>>>>> http://m.pocketnow.com/2013/11/13/dalvik-vs-art
>>>>>
>>>>
>>>> "The benefits? Some sources are reporting a 50% increase in speed.
>>>> Others say it’s closer to 100%. Many claim they’ve seen their battery life
>>>> increase by 25% or more!"
>>>>
>>>> Got to love those 100% speed increases.  Apps really fly when they take
>>>> no time at all...
>>>>
>>>> --
>>>> Eliot
>>>>
>>>>
>>>
>>>
>>
>>
>> --
>> best,
>> Eliot
>>
>>
>
>


-- 
best,
Eliot
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