On Wed, 18 Apr 2007 10:22:59 -0700 (PDT) Linus Torvalds <[EMAIL PROTECTED]> wrote:
> So if you have 2 users on a machine running CPU hogs, you should > *first* try to be fair among users. If one user then runs 5 programs, > and the other one runs just 1, then the *one* program should get 50% > of the CPU time (the users fair share), and the five programs should > get 10% of CPU time each. And if one of them uses two threads, each > thread should get 5%. This sounds great, to me. One minor question: is it even possible to be completely fair on SMP? For instance, if you have a 2-way SMP box running 3 applications, one of which has 2 threads, will the threaded app have an advantage here? (The current system seems to try to keep each thread on a specific CPU, to reduce cache thrashing, which means threads and processes alike each get 50% of the CPU.) Mark - 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/
