On Fri, Jun 28, 2013 at 11:38:29AM +0530, Srikar Dronamraju wrote: > * Mel Gorman <[email protected]> [2013-06-26 15:38:01]: > > @@ -826,6 +833,9 @@ void task_numa_fault(int node, int pages, bool migrated) > > p->numa_scan_period + jiffies_to_msecs(10)); > > > > task_numa_placement(p); > > + > > + /* Record the fault, double the weight if pages were migrated */ > > + p->numa_faults[node] += pages << migrated; > > > Why are we doing this after the placement. > I mean we should probably be doing this in the task_numa_placement,
The placement only does something when we've completed a full scan; this would then be the first fault of the next scan. Hence we do placement first so as not to add this first fault of the next scan to ->numa_faults[]. This all gets changed later on when ->numa_faults_curr[] gets introduced. -- 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/
