On Thu, Apr 11, 2013 at 08:38:37AM -0700, Linus Torvalds wrote:
> /* We know one of the values has a bit set in the high 32 bits */
> for (;;) {
> /* Make sure "stime" is the bigger of stime/rtime */
> if (rtime > stime) {
> u64 tmp = stime; stime = rtime; rtime = tmp;
> }
For most workloads rtime is bigger than stime, so swapping those would
save some cycles on common cases. Otherwise this algorithm looks great.
Thanks
Stanislaw
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