On 11/14/2012 03:41 PM, David Rientjes wrote: > > Nobody is going to know what hzp_ is, sorry. It's better to be more > verbose and name them what they actually are: THP_ZERO_PAGE_ALLOC and > THP_ZERO_PAGE_ALLOC_FAILED. But this would assume we want to lazily > allocate them, which I disagree with hpa about. > You want to permanently sit on 2 MiB of memory on all systems? That being an obvious nonstarter, then you end up having to make some kind of static control, with all the problems that entails (if Linus had not set his foot down on tunables a long time ago, we today would have had a Linux mm which only performed well if you manually set hundreds or thousands of parameters) you either have lazy allocation or you go with the virtual huge zero page solution and just accept that either is going to perform poorly under some set of pathological circumstances. -hpa -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>