sonatabar bar <sonatabar@xxxxxxxxx> writes: > I am trying to test what is the maximum allocatable > dynamic memory on a give machine. For my surprise I > see wonders happening, and I don't have an > explaination to it. I understand a bit that, it > doesn't have to do with compilers entirely, and hece > seeking explaination. > > this test fails allocating memory for index 68561 > which means => allocated memory is (68561000000*8) > bytes =>X > => X/1024/1024/1024 = 510.82 Gig ??? > > May be I am missing something, tried running it on a 2 > & 4 Gig phyiscal memory machines, with a swap space of > 8Gig. Wrong mailing list. This is not a gcc question. It is a kernel or a library question. I believe the answer is that the kernel permits you to allocate as many pages as you like, but when you actually try to use them and it looks for a place to put them, it will fail. I am not an expert, though. Ian
