Re: [RFC PATCH] mm: numa: adjust hinting fault record if page ismigrated

From: Rik van Riel
Date: Sat Sep 14 2013 - 11:55:56 EST


On 09/14/2013 07:53 AM, Hillf Danton wrote:
> After page A on source node is migrated to page B on target node, hinting
> fault is recorded on the target node for B. On the source node there is
> another record for A, since a two-stage filter is used when migrating pages.
>
> Page A is no longer used after migration, so we have to erase its record.

What kind of performance changes have you observed with this patch?

What benchmarks have you run, and on what kind of systems?

--
All rights reversed
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/