On Tue, 2013-06-04 at 22:21 +0200, Jesper Dangaard Brouer wrote:

But how is this 64-bit usage going to affect performance for smaller
ARM/MIPS based home routers, where shaping at these low rates is more
relevant?  (I'm just asking because I don't know, and just test this
on a 24-CPU machine).

Well, by definition shaping at low rates is mostly using the timer
infra, and its already 64bit. You'll hardly spend time in HTB.

Note that psched_time_t is already 64bit wide.

Only psched_tdiff_t is 'unsigned long', and the change I made in this
patch will not change performance even on 32bit hosts.