[Gvsig_english] gvSIG performances on different platforms

[Benjamin Ducke]

A problematic topic, indeed.
Generally speaking, any Linux platform any reasonably complex
software SHOULD run faster than on Windows.

- less bloated operating system (user can optionally strip system down
to absolute bare essentials)
- more efficient memory handling
- more efficient filesystem(s)
- more efficient network protocols
- no need to run virus scanner in the background (#1 performance killer
on Win)
- typically no need for file system defragmentation and other pampering
of system, such as root-kit detectors, anti ad-ware and those triple
firewalls necessary to make the thing reasonably safe

That being said, IF Sun's Java virtual machine SHOULD
be less well-implemented than the Windows version, then gvSIG's speed
WOULD suffer by comparison.  I am not aware of any such problems on 
Linux, however. In the end, it would probably take some automated
benchmarking on all interesting platforms to really be sure about this.

What I do know is that gvSIG runs with Java 1.6 on Linux, but not on
Win, giving Linux the theoretic edge in Java performance at
the moment. But of course, that can all change with a latter version.

So don't worry too much about it: just switch to Linux and enjoy
all the freedom and other benefits it brings with it!

Cheers,

Benjamin


Chris Puttick wrote:
> ----- "silvio grosso" <grossosilvio at yahoo.it> wrote:
>> Hello everybody,
>>
>> I am wondering if gvSIG has different performances depending on the
>> platforms where it is installed?
>> In particular, I am interested in the differences between a Microsoft
>> system and a Linux one.
>> I suppose the answer is no. I read this information in the
>> International mailing list :-)
>> I am confident gvSIG 2 is going to be much better than gvSIG 1.1.
>>
>> Nevertheless, I know a little bit OpenOffice and its Java background.
>> On linux (Ubuntu Hardy), OpenOffice is a bit slower than on Windows.
>> Besides, OpenOffice has different bugs on Linux (I checked the Sun's
>> bugs list).
>> As a consequence, I suppose it could be the same for gvSIG (but maybe
>> I am wrong)?
> 
> OpenOffice is not a Java application, and OpenOffice Windows is not the same as OpenOffice Ubuntu - specifically OpenOffice Ubuntu has additional file filters enabled by default and some other stuff. On the otherhand, I've not heard that OpenOffice is slower on Ubuntu...
> 
> Java speed on Linux (which should be the key factor in gvSIG performance) should be no slower than on Windows so gvSIG should not be either.
> 
>> I asking this not out of curiosity but because I am planning to
>> migrate to Linux Ubuntu (installed on a 32 bit CPU).
>> At present, I installed VirtualBox on Windows xp home edition, Ubuntu
>> Hardy and, finally, gvSIG 1.1. (to avoid drivers problems).
>> Obviously, with the Virtualitation the performances are not the best
>> :-)
>>
>> My only fear is that gvSIG could be less tested on a Linuxt platform
>> (as it happens for OpenOffice installed on a Ubuntu platform).
> 
> is gvSIG less tested on a Linux platform? Is OpenOffice less tested on a Linux platform? Numerically it might be on an Ubuntu platform; on the otherhand I use it (as a senior executive) all day long on Kubuntu, and the crash/lockup/annoyance rate is far better than I remember MS Office 97/2k being. As I moved fulltime to OpenOffice because I moved fulltime to Linux, I can't comment on OpenOffice issues on Linux relative to Windows ;)
> 
>> In conclusion, maybe, on Linux, gvSIG could be less performant?
>>
>> I can't tell anything about the bugs.
>> At present, there is not a way in gvSIG to check them. 
>> Hopefully for the gvSIG 2 series it will be different or, at least, I
>> hope so ;-)
>>
>> Thanks in advance
>>
>> Best regards
>>
>> Silvio
>>
>>
>>
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> 
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-- 
Benjamin Ducke
Senior Applications Support and Development Officer

Oxford Archaeological Unit Limited
Janus House
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Oxford, U.K.

Tel: +44 (0)1865 263 800 (switchboard)
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benjamin.ducke at oxfordarch.co.uk




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