On Tue, Apr 13, 2010 at 8:44 PM, Eric Dumazet <eric.dumazet@xxxxxxxxx> wrote: > Le mardi 13 avril 2010 à 19:06 +0800, Changli Gao a écrit : > > Thats theory. And for sparse arrays, that pro might be true. > In your case, you prealloc all the array, using more ram than vmalloc... > > In practice, x86 cpu can access vmalloced() data much faster then > flex_array_managed data (take a look at all the expensive divides in > flex code... :'( ) > > If vmalloc() happens to be slow, it can trivially be extended to use > huge pages too. It will happen one day, when/if necessary. > The current flex_array isn't optimized well. If it is well optimized, will it be faster than vmalloc()? -- Regards， Changli Gao(xiaosuo@xxxxxxxxx) -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
