On Tue, 30 Nov 2010, Simon Kirby wrote: > Can we also mess with these /sys files on the fly? Sure. Go ahead. These are runtime configurable. > I'm not familiar with how slub works, but I assume there's some overhead > or some reason not to just use order 0 for <= kmalloc-4096? Or is it > purely just trying to reduce cpu by calling alloc_pages less often? Using higher order pages reduces the memory overhead for objects (that after all need to be packed into an order N page), decreases the amount of metadata that needs to be managed and decreases the use of the slowpaths. That implies also a reduction in the locking overhead. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>