Re: [PATCH] Radix-tree pagecache for 2.5

[Anton Blanchard]

> all the hashes should be allocated with the bootmem allocator, that
> doesn't have the MAX_ORDER limit. Not only the pagecache hash, that is
> the only one replaced.
> 
> In short, for an optimal comparison between hash and radix tree, we'd
> need to fixup the hash allocation with the bootmem allocator first.

All my results use vmalloc to allocate the hashes so they get sized
correctly.

Don't worry, there is no increased tlb pressure on these machines due
to vmalloc, that cpu doesnt have large page support.

Anton