On Mon, Aug 4, 2008 at 8:13 PM, Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx> wrote: > KOSAKI Motohiro wrote: > >> When hackbench running, SLUB consume memory very largely than SLAB. >> then, SLAB often outperform SLUB in memory stavation state. >> >> I don't know why memory comsumption different. >> Anyone know it? > > Can you quantify the difference? > > SLAB buffers objects in its queues. SLUB does rely more on the page allocator. > So SLAB may have its own reserves to fall back on. Also, what kind of machine are we talking about here? If there are a lot of CPUs, SLUB will allocate higher order pages more aggressively than SLAB by default. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
