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Ok, well, as I type this email, eclipse is scratching the audio and i'm
getting ready to restart it :-(

what sort of measurement would help diagnose the problem?

btw, i'm trying it with the default for heap max (i.e. i omit an -Xmx
option entirely from my eclipse.init) and i'll report what I find.

russ


Greg Guerin wrote:
> Russ Trotter wrote:
>
>
>>Hi Greg, just to clarify, I had said that my *total* physical memory is
>>1GB.  Free memory when eclipse "warms" up is around 40 MB with the other
>>things i have running (iTunes, safaris, one firefox window, thunderbird,
>>terminals, etc)
>
>
> Sorry for my confusion.  I was mixing up your config with Rick Genter's post:
>   < http://lists.apple.com/archives/java-dev/2006/Jan/msg00004.html>
>
>
>>is that 40mb free the smoking gun?
>
>
> Can't tell.  However, with a heap-max of 512MB, you may well be
> over-committing your machine's memory, as Shawn Erickson pointed out.  That
> is, if you don't have 512MB to spare, you can induce swapping, which leads
> to other problems.  See the post I cited before:
>   <http://lists.apple.com/archives/java-dev/2005/Aug/msg00053.html>
>
> However, since at least 2 other people have posted that they have huge
> tracts of free memory yet they still get audio breakup, it doesn't seem
> like swapping is the problem.  Based on all the reports posted here, it's
> impossible to infer or conclude anything about a probable cause.  There
> just isn't enough detail or measurements of what's happening in each
> situation.
>
>
> Also, I ran 'vm_stat 3' on a dual G4, 1GB machine this morning and moved
> the mouse around a lot in Terminal (mouse-move, not mouse-drag).  It showed
> 200-300 "page faults" all of which were "zero fill": no copy-on-writes, no
> page outs, no page ins, no reactivates, etc.  This was done with no
> Eclipse, no Java, no iTunes, just Terminal and Finder.  So just because
> there are "page faults" doesn't necessarily tell you much.
>
>   -- GG
>
>
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