Re: Allocating aligned memory blocks?
On 12/12/14 2:02 AM, safety0ff wrote: On Friday, 12 December 2014 at 06:17:56 UTC, H. S. Teoh via Digitalmars-d-learn wrote: Is there a way to allocate GC memory blocks in D that are guaranteed to fall on OS page boundaries? I don't know about guarantees, I think that in practice, if your OS page size is 4096, any GC allocation of 4096 or greater will be page aligned. Yes, it's how that will work, and I think it's de-facto guaranteed. Actually technically, you can allocate a block of 2049 or bigger, and it will allocate a page for it. -Steve
Re: Allocating aligned memory blocks?
On Friday, 12 December 2014 at 06:17:56 UTC, H. S. Teoh via Digitalmars-d-learn wrote: Is there a way to allocate GC memory blocks in D that are guaranteed to fall on OS page boundaries? I don't know about guarantees, I think that in practice, if your OS page size is 4096, any GC allocation of 4096 or greater will be page aligned. should I just forget the GC and just use posix_memalign() manually? I think it may be possible to do what you want with mmap/munmap alone (selectively map parts of the file to memory.)
