On 13 feb, 13:48, Dave Angel <da...@ieee.org> wrote: > 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... > > DaveA
Yes, you are right, i also would need to modify the executable. the reason why I posted on this list was the hard crash of python - which python really should not do I think. AFAICS there is no 'bug' in my edi translator (runs OK on linux) - but it uses far to much memory..... For me, I am going to bring back the memory footprint of my edi translator. Which should be fairly easy to do. kind regards, henk-jan -- http://mail.python.org/mailman/listinfo/python-list
