If you are compiling your own macintosh VM then go look at sqSqueakOSXApplication.m
- (NSInteger) parseArgument: (NSString *) argData peek: (NSString *) peek { ... if ([argData compare: @"-memory"] == NSOrderedSame) { gMaxHeapSize = (usqInt) [self strtobkm: [peek UTF8String]]; return 2; } return 0; }
and follow the bouncing gMaxHeapSize to see what happens. You'll find the use at startOfmmapForANONMemory = mmap(startOfAnonymousMemory, freeSpaceRoundedUpToPageSize, PROT_READ|PROT_WRITE, MAP_ANON|MAP_SHARED,0,(off_t)0);
in sqMacV2Memory.c
On 2010-11-30, at 5:03 PM, David T. Lewis wrote:
On Wed, Dec 01, 2010 at 12:41:44AM +0100, Mariano Martinez Peck wrote:
On Wed, Dec 1, 2010 at 12:11 AM, Mariano Martinez Peck < marianopeck@gmail.com> wrote:
On Tue, Nov 30, 2010 at 5:14 PM, David T. Lewis lewis@mail.msen.comwrote:
I'm away and cannot check this right now, but if you look in the SqS/VMMaker archive there there are a number of recent updates that may address this problem. See the Montecello update comments for VMMaker-dtl.188, VMMaker-dtl.199, and VMMaker-dtl.200 for summaries. These updates would not be in any of the released VMs at this point, but I have a hunch that they will take care of this problem.
Hi Dave. Ok...after a couple of hours I could compile a new VM for MacOS with VMMaker 205 and integrating all my changes :) So....this was something I have to do since several months already hehhehe
Now, as you guessed, something was related to that. Now, these are the results:
normal:
Smalltalk garbageCollect 481957728 Smalltalk primBytesLeft 5738200
with -memory 1500m
Smalltalk garbageCollect 482093452 Smalltalk primBytesLeft 6444200
mmmmmmm if instead of sending -memory I modify Info.plist and I set 1572864000 (1500gb) then I get
Smalltalk garbageCollect 1518058920 Smalltalk primBytesLeft 5898636
:)
so maybe the mac vm is not taking into acount -memory but it does the file?
Well that's as good a theory as anything I could have made up ;-)
To be serious, the -memory parameter is part of the unix VM, and other platforms may do things differently. So yes, I think you have found the right explanation.
Dave
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