hjebbers wrote:
On Feb 13, 10:25 am, Dennis Lee Bieber <wlfr...@ix.netcom.com> wrote:
On Fri, 12 Feb 2010 09:21:07 -0800 (PST), hjebbers <hjebb...@gmail.com>
declaimed the following in gmane.comp.python.general:
What strikes me is:
1. the crash on windows, but linux works OK (same test sets)
2. the linux box has 750Mb RAM, the windows box has 1.5Gb (twice as
much).
Which on its own does not mean much.
Windows in a normal installation only grants 2GB address space to
user code, reserving the other 2GB space for the OS shared libraries. If
your program attempts to allocate over that, it will fail. That the
Windows box has twice the physical memory only means it doesn't resort
to page swapping as soon.
There is a boot parameter switch that toggles Windows into a 3GB
user/1GB OS mode --
hey, that would be great!! on my 1,5G mahcine ;-)
it is mainly meant for server machines where there
won't be many disjoint OS libraries loaded, but the server applications
need lots of data space.
What split does the Linux OS use? If it give 3GB to user space,
while you'd start to page swap much soon, you'd also have 50% more
virtual memory that can be allocated than under Windows.
--
Wulfraed Dennis Lee Bieber KD6MOG
wlfr...@ix.netcom.com HTTP://wlfraed.home.netcom.com/
I will check this.....any advice on how to check this?
henk-jan
As I posted in recent thread on Tutor,
But the one you might want is a boot.ini option that tells the OS to
only reserve 1gb for itself, and leave 3gb for user space. But there
are tradeoffs, including the need to modify an application's executable
to take advantage of it. And the whole system may run substantially
slower, even when your're extended app isn't running. See links:
http://www.microsoft.com/whdc/system/platform/server/PAE/PAEmem.mspx
http://blogs.technet.com/askperf/archive/2007/03/23/memory-management-demystifying-3gb.aspx
DaveA
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