On Mon, 2005-02-14 at 06:28 +0100, Willy Tarreau wrote: > Hello Josh, > > On Sun, Feb 13, 2005 at 06:23:15PM -0600, Josh Aas wrote: > > Hello, > > > > I have written an introduction to the Linux 2.6.8.1 CPU scheduler > > implementation. It should help people to understand what is going on in > > the scheduler code faster than they would be able to by just reading > > through the code. The paper can be downloaded in PDF or LyX form from > > here: > > > > http://josh.trancesoftware.com/linux/ > > This is quite an interesting documentation. >
The multiprocessor scheduling documentation looks pretty accurate, at a quick glance. A few small things though: I don't think you place enough emphasis on the per-CPU-ness of the 2.6 scheduler. For most workloads, this probably yields by far the biggest improvement over the 2.4 scheduler on even small SMP systems, due to much less lock and cacheline contention. Secondly, 7.1.2 can probably be removed completely. We can actually handle this type of SMT balancing correctly without shared runqueues (and in an arguably nicer way). Nick - 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/
