From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Sturm To: "David S. Miller" Cc: fjh@cs.mu.OZ.AU, , Subject: Re: Faster compilation speed Date: Wed, 14 Aug 2002 07:58:00 -0000 Message-id: References: <20020813.222641.21597871.davem@redhat.com> X-SW-Source: 2002-08/msg00838.html On Tue, 13 Aug 2002, David S. Miller wrote: > I think this would be a very interesting experiment. > > Feel free to even try it with an infinitely fast GC, even > one that executed in zero time. > > Because for the millionth time, it's not the performance of GC itself. > It's the temporal and spatial locality problems of data accesses which > is a fundamental result of using GC for memory allocation. Relax. Earlier in this thread I seem to remember you were advocating certain experiments in spite of the skeptics. So give the GC experts a chance. As I understand it, generational collection ought to improve locality, since the youngest generation can be collected frequently, and may even be small enough to fit mostly in cache. (I've never observed it to work in practice, but don't let that discourage anyone :-) Jeff