Publishing flamebait [Fwd: Pragmatic Bookshelf releases "FromJava To Ruby"]

Hans Fugal hans at
Thu Jun 29 10:21:28 MDT 2006

On Thu, 29 Jun 2006 at 09:15 -0700, Ross Werner wrote:
> On Thu, 29 Jun 2006, Hans Fugal wrote:
> >>>And I don't care what you say, Java IS a memory hog. I don't
> >>>need some web article to debunk what I can see day in and day out on top
> >>>and ps.
> ...
> >extra 11, and you still have 45m which ties for top RAM user with
> >thunderbird, and they're both 20MB more than my biggest rails app. Now,
> >I admit it looks like openoffice isn't running...
> I'd have to agree that Java is typically more memory-hungry than other 
> applications--however, in my experience that's only a one-time cost. In 
> other words, for me to run Eclipse comfortably I need half a gig of RAM 
> (a gig if I hope to run several other non-Java applications without 
> swapping). But I can run two or three more copies of Eclipse with very 

Half a Gig!!! Even emacs can't approach that.

> little overhead above that, as well as half a dozen other Java apps. The 
> intial memory cost to have something running in a JVM seems to be rather 
> high, but once you hit that point everything else seems to be very 
> comparable to non-Java applications in terms of memory usage.

The same is true of gnome and qt/kde, the ruby interpreter, rails (if
you're not using a frozen copy in vendor/), php, apache, etc. It's the
beauty of shared memory. 

Hans Fugal ;
There's nothing remarkable about it. All one has to do is hit the 
right keys at the right time and the instrument plays itself.
    -- Johann Sebastian Bach
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