* Balbir Singh <[EMAIL PROTECTED]> wrote: > With -v7 I would run the n/n+1 test. Basically on a system with n > cpus, I would run n+1 tasks and see how their load is distributed. I > usually find that the last two tasks would get stuck on one CPU on the > system and would get half the cpu time as their other peers. I think > this issue has been around for long even before CFS. But while I was > investigating that, I found that with -v8, all the n+1 tasks are stuck > on the same cpu.
i believe this problem is specific to powerpc - load is distributed fine on i686/x86_64 and your sched_debug shows a cpu_load[0] == 0 on CPU#2 which is 'impossible'. (I sent a few suggestions off-Cc about how to debug this.) Ingo - 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/