On Sun, 11 Apr 2010, Ingo Molnar wrote: > > Both Xorg, xterms and firefox have rather huge RSS's on my boxes. (Even a > phone these days easily has more than 512 MB RAM.) Andrea measured > multi-percent improvement in gcc performance. I think it's real. Reality check: he got multiple percent with - one huge badly written file being compiled that took 22s because it's such a horrible monster. - magic libc malloc flags tghat are totally and utterly unrealistic in anything but a benchmark - by basically keeping one CPU totally busy doing defragmentation. Quite frankly, that kind of "performance analysis" makes me _less_ interested rather than more. Because all it shows is that you're willing to do anything at all to get better numbers, regardless of whether it is _realistic_ or not. Seriously, guys. Get a grip. If you start talking about special malloc algorithms, you have ALREADY LOST. Google for memory fragmentation with various malloc implementations in multi-threaded applications. Thinking that you can just allocate in 2MB chunks is so _fundamnetally_ broken that this whole thread should have been laughed out of the room. Instead, you guys egg each other on. Stop the f*cking circle-jerk already. Linus -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>