On Sun, 2012-02-05 at 13:46 +0200, Gilad Ben-Yossef wrote: > > /* > > * Cause all memory mappings to be populated in the page table. > > * Specifying this when entering dataplane mode ensures that no future > > * page fault events will occur to cause interrupts into the Linux > > * kernel, as long as no new mappings are installed by mmap(), etc. > > * Note that since the hardware TLB is of finite size, there will > > * still be the potential for TLB misses that the hypervisor handles, > > * either via its software TLB cache (fast path) or by walking the > > * kernel page tables (slow path), so touching large amounts of memory > > * will still incur hypervisor interrupt overhead. > > */ > > #define DP_POPULATE 0x8 > > hmm... I've probably missed something, but doesn't this replicate > mlockall (MCL_CURRENT|MCL_FUTURE) ? Never use mlockall() its a sign you're doing it wrong, also his comment seems to imply MCL_FUTURE isn't required. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>