On C/C++ undefined behaviours (there is no "Eclipse")

[Bruno Medeiros]

On 20/08/2010 22:37, Nick Sabalausky wrote:
> "retard"<re at tard.com.invalid>  wrote in message
> news:i4mrss$cam$1 at digitalmars.com...
>> Fri, 20 Aug 2010 19:04:41 +0200, Andrej Mitrovic wrote:
>>
>>> What are these Java programs for the desktop that run fast? I haven't
>>> encountered any, but maybe that's just because I didn't try them all
>>> out. Eclipse takes at least 20 seconds to load on startup on my quad
>>> core, that's not very fast. On the other hand, CodeBlocks which is coded
>>> in C++ and has  a few dozen plugins installed runs in an instant.
>>
>> Now that's a fair comparison! "Crysis runs so slowly but a hello world
>> written in Go is SO fast. This must prove that Go is much faster than C+
>> +!"
>>
>> I think CodeBlocks is one of the most lightweight IDEs out there. Does it
>> even have full semantic autocompletion? Eclipse, on the other hand, comes
>> with almost everything you can imagine. If you turn off the syntax check,
>> Eclipse works just as fast as any native application on a modern desktop.
>
> I've tried eclipse with the fancy stuff off, and it's still slower than C::B
> or PN2 for me.
>
>

All these comments about Eclipse takes this time to load, or Eclipse is 
slow when used, etc., are really meaningless unless you tell us 
something about what actual plugins and features are installed and used.

Unlike CodeBlocks which is "a free C++ IDE", Eclipse proper is the 
Eclipse Platform, which is a platform (duh) and doesn't do anything 
useful by itself. Particularly since there is not even a standard/single 
"Eclipse" download: http://www.eclipse.org/downloads/ , unlike 
Codeblocks. The days were JDT would be the main thing 95% of Eclipse 
users would use are long gone.

So are you using JDT, CDT, Descent, something else? If JDT, do you have 
extra tools, like the J2EE Web Tools? (these add massive bloat) What 
about source control plugins, or plugins not provided by the Eclipse 
Foundation, etc? All of these are a wildcard that can affect performance.
For example, I definitely note that sometimes my workspace chokes when I 
do certain SVN or file related operations (with Subclipse btw, not 
Subversive).
I also noted, when Eclipse 3.6 came out, some sluggishness when working 
with JDT, even when just typing code (in this case it was very subtle, 
almost imperceptible, but I still felt it and it was quite annoying). I 
suspected not JDT, but Mylyn, so I uninstalled it, and now things are 
back to normal. (there might be a fix or workaround for that issue in 
Mylyn, but since I don't use it, I didn't bother)

I would definitely be quite annoying if Eclipse was not responsive for 
the vast majority of coding tasks.

As for startup time, I hardly care anything about that :
http://www.digitalmars.com/d/archives/digitalmars/D/Re_Eclipse_startup_time_Was_questions_on_PhanTango_merger_was_Merging_Tangobos_into_Tango_60160.html#N60346
(except when I'm doing PDE development, but that's a different thing)

-- 
Bruno Medeiros - Software Engineer