Re: 2.6.13-rc6-rt6

Ingo Molnar
2005-08-23T05:46:03Z

* Steven Rostedt <rostedt@goodmis.org> wrote:

> Here's a patch to move the pi_lock out of the "fast path". Thus, only
> threads that need to do PI will need to take it.

ok, looks good, applied it. I've renamed p->rt_lock to p->pi_lock. The
patch gave a 10% wall-clock improvement in hackbench numbers on an 8-way
box. (This box has pretty high cachemiss costs, so the positive effects
of such patches show up nicely.)

Ingo