On Fri, Jan 18, 2002 at 12:09:05PM -0800, David S. Miller wrote: > From: Andi Kleen <ak@suse.de> > Date: Fri, 18 Jan 2002 15:01:20 +0100 > > Unfortunately gettimeofday at least on i386 has a readlock. It would > add a new cache line bouncing bottleneck for every packet. > > Andi, i386 SMP? :-) If you used do_gettimeofday unconditionally then everybody would eat the readlock, not only i386 (unless you change it to be lockless first like andrea did for the x86-64 vsyscall version) If you didn't propose to use it unconditionally then I misunderstood you and I apologize. -Andi - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
