On Thursday 04 December 2014 10:03:10 Dominig ar Foll wrote: > > 2. until you touch the pages (read or write) they don't exist so it will > > have no impact > > I have not checked that detail with latest kernel. but is use to be that > when the kernel was giving you the allocation, the RAM was there. > Remember tha tI assume that there is no swap.
As long as memory overcommit is turned off. As far as I know, there is no way to turn it completely off, even with no swap. The kernel makes some assumptions that memory will be freed by the time you actually touch all the pages you asked for. And especially in the case where you did not touch the pages at all, the kernel did not reserve them to you and another process may also request them. -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center _______________________________________________ Dev mailing list [email protected] https://lists.tizen.org/listinfo/dev
