On Wednesday 08 August 2001 20:28, Mike Kravetz wrote:
> Yes we have, we'll provide those numbers with the updated patch.
> One challenge will be maintaining the same level of performance
> for UP as in the current code. The current code has #ifdefs to
> separate some of the UP/SMP code paths and we will try to eliminate
> these.
Does it help if I clarify what Linus was suggesting? Instead of:
#ifdef CONFIG_SMP
.. use nr_running() ..
#else
.. use nr_running ..
#endif
write:
inline int nr_running(void)
{
#ifdef CONFIG_SMP
int i = 0, tot=nt_running(REALTIME_RQ);
while (i < smp_num_cpus) {
tot += nt_running(cpu_logical_map(i++));
}
return(tot);
#else
return nr_running;
#endif
}
Then see if you can make the #ifdef's go away from that too. (If that's
too hard, well, at least the #ifdef's are now reduced.)
-- Daniel - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Wed Aug 15 2001 - 21:00:19 EST