Re: [dsdp-ercp-dev] Java 5 in devices

["Gorkem Ercan" <gercan@xxxxxxx>]

These numbers exactly indicate the problem that we are
facing.Considering mainstream hardware configurations today any
runtime that uses over 10 MB RAM does not get mainstream.
--
Gorkem

On Fri, Jun 6, 2008 at 12:43, Sebastian Mancke <s.mancke@xxxxxxxxx> wrote:
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> Hi Gorkem,
>
> Gorkem Ercan schrieb:
>> Hey Sebastian,
>> Do you have any numbers what is the required hardware for having java
>> 5 on a device.. Any CPU or memory requierements.
> of course, this depends on the usage.
>
> The storage size of the complete runtime: ~12 MB
> A small java process: ~15 MB RAM
> A bigger java process (SWT, some libraries, some images): ~30 MB RAM
>
> On our Nokia n800 (TI OMAP 2420 @400 MHz) we have the following:
> Start up speed Hello World: 3 seconds
> Start up speed SWT Hello World: 10 seconds
> Once the code bytecode is compiled, it runs *very* fast.
>
> Even on the early linux mobile devices (e.g. yopy or zaurus with SA-1110
> CPU @206 MHz) it is possible to run the the vms.
>
> Currently our biggest problem is the start up speed. But we are hardly
> working on a JIT-cache for cacao to improve this.
>
>> By the way, did you already start doing a port of cacao for S60?
> No. Just looked into it the APIs, somewhat. The Open C Layer should
> provide the most parts, we need: libc, libz, libpthread, libdl. But
> first we have to finish our JIT-cache. Currently jalimo fits our company
> needs, so the next extensions will be mostly driven by our personal
> interests ;-)
>
> Regards,
>  Sebastian
>
>> --
>> Gorkem
>>
>> On Fri, Jun 6, 2008 at 11:11 AM, Sebastian Mancke <s.mancke@xxxxxxxxx> wrote:
>> Hi,
>>
>> we are also able to run the most 1.5 applications: http://www.jalimo.org
>> My hope is also to get one of those vm's (e.g. cacao) to Symbian S60,
>> this year.
>>
>> Regards,
>>  Sebastian
>>
>>
>> Gaff, Doug schrieb:
>>>>> Hi guys,
>>>>>
>>>>>
>>>>>
>>>>> I?m guessing you already know about this. Just thought I?d pass it on.
>>>>>
>>>>>
>>>>>
>>>>> Doug
>>>>>
>>>>>
>>>>>
>>>>> *From:* eclipse-incubator-e4-dev-bounces@xxxxxxxxxxx
>>>>> [mailto:eclipse-incubator-e4-dev-bounces@xxxxxxxxxxx] *On Behalf Of
>>>>> *Marcelo Paternostro
>>>>> *Sent:* Wednesday, June 04, 2008 1:33 PM
>>>>> *To:* E4 developer list
>>>>> *Subject:* [eclipse-incubator-e4-dev] FYI: Java 5 in devices
>>>>>
>>>>>
>>>>>
>>>>> Hi,
>>>>>
>>>>> I've attended to a Sun event here in Toronto in which I've seen a Java 5
>>>>> application running in an iPhone. Obviously I've asked what was the JVM
>>>>> being used since JavaME is 1.4 based. The answer was
>>>>> http://jamvm.sourceforge.net/. So perhaps adopting Java 5 in e4 may not
>>>>> exclude folks that are currently developing for mobile devices.
>>>>> Certainly is not keeping Sun developers and projects to move to a newer
>>>>> level of the language ;-)
>>>>>
>>>>> Note for the curious ones: The "Java 5 application" is Grizzly
>>>>> (https://grizzly.dev.java.net/) and the presenter was the project's team
>>>>> leader, Jean François, a Sun Engineer.
>>>>>
>>>>> Best regards,
>>>>>
>>>>> Marcelo Paternostro
>>>>> IBM Toronto Lab
>>>>> 1-905-413-3942
>>>>> marcelop@xxxxxxxxxx
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------
>>>>>
>>>>> _______________________________________________
>>>>> dsdp-ercp-dev mailing list
>>>>> dsdp-ercp-dev@xxxxxxxxxxx
>>>>> https://dev.eclipse.org/mailman/listinfo/dsdp-ercp-dev
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