On Tue, 6 Mar 2007, H. Peter Anvin wrote: > Eric Dumazet wrote: > > > > For epoll, I suspect this is harmless : Programs dont allocate epolls fd > > every milli second, but at startup only. > > > > For pipes/sockets, using a 64 bits would be problematic, because sprintf() > > uses a divide for each digit. And a divide is slow. Ten divides are *very* > > slow. > > > > That's true for *any* sprintf(), though. sprintf() converts all its arguments > to 64 bits.
Sigh! We *always* do do_div(), even for the more trivial %x case. Anyway, it does not really matter for the type of dfs will be applied to. - Davide - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
