hi Robby Just back from out of town, sorry for the late reply. No. This doesn't help at all, still got low-memory killing on my ipad. Actually, my own test is all based on "#lang racket/base". I'll try Kevin's patch to see any difference. I've also tried to throttle the max_pages_in_heap to allow around 25MB pages to use, it will soon throw "out of memory" exception and abort after a couple of GC cycles. Nevo <div class="gmail_quote">On 22 April 2011 19:08, Robby Findler <<a href="mailto:robby@eecs.northwestern.edu">robby@eecs.northwestern.edu</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> This program: #lang racket/base (printf "hi\n") uses a lot less memory than this one: #lang racket (printf "hi\n") Does that help at all? Robby <div><div></div><div class="h5"> On Fri, Apr 22, 2011 at 12:09 AM, Nevo <<a href="mailto:sakur.deagod@gmail.com">sakur.deagod@gmail.com</a>> wrote: > hi > My attempt on porting Racket interpreter to iOS has been for a while and > I've been able to run interpreter on both iOS device as well iOS simulator. > Right now, it runs perfectly on iOS simulator, but lack of satisfaction on > device. The reason is for those devices like iPad/iPhone or Android, the > memory for standalone application is always constrained, and even a single > "hello world" evaluation would easily put the whole app runtime to death, > per my test. In particular, here I've got some commented out "printf" code > compiled in for newgc.c, and trying to load a simple "hello world" racket > file to evaluate results in more than 30MB memory in use (reported by gc). > This is nothing for a desktop, but will kill itself easily in iOS which > usually requires the average memory allocation will be less than 20MB. So > I'm asking if there's some known compiling or runtime configuration which I > may not know to reduce memory usage, at least keep average allocation > acceptable for those memory constrained devices. Thanks for your suggests > here! > Nevo </div></div>> _________________________________________________ > For list-related administrative tasks: > <a href="http://lists.racket-lang.org/listinfo/dev" target="_blank">http://lists.racket-lang.org/listinfo/dev</a> > </blockquote></div>