I've never looked at the Reiser code though the comments I get from friends who use it are on the order of 'extremely reliable but not the fastest filesystem in the world'. I don't expect HAMMER to be slow. A B-Tree typically uses a fairly small radix in the 8-64 range (HAMMER uses 8 for now). A standard indirect block methodology typically uses a much larger radix, such as 512, but is only able to organize information in a very restricted, linear way. The...

Certainly I didn't mean to say that quota support for Hammer in 2.0 was the most important thing on earth. But as it is such a feature-rich and modern filesystem approach, users will eventually appreciate quota support at some stage of development. I can't wait to test Hammer on my Pentium Pro box with 48M of RAM :-) Riggs

You don't have to play such games on AMD64 -- the swapgs instruction is normally used by traps and system calls to load a well-defined address base for that. Note that gs is expected to be used for, but that is a minor detail. Joerg