On Mon, Aug 19, 2013 at 2:56 PM, Kyle J. McKay <mackyle@xxxxxxxxx> wrote: > > The fact that the entire file is read into memory when applying the filter > does not seem like a good thing (see #7-#10 above). Yeah, that's horrible. Its likely bad for performance too, because even if you have enough memory, it blows everything out of the L2/L3 caches, and if you don't have enough memory it obviously causes other problems. So it would probably be a great idea to make the filtering code able to do things in smaller chunks, but I suspect that the patch to chunk up xread/xwrite is the right thing to do anyway. Linus -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html