Hello David, On Wed, Oct 16, 2013 at 05:43:55PM -0700, David Rientjes wrote: > Vmpressure has two important levels: medium and critical. Medium is > defined at 60% and critical is defined at 95%. > > We have a customer who needs a notification at a higher level than medium, > which is slight to moderate reclaim activity, and before critical to start > throttling incoming requests to save memory and avoid oom. > > This patch adds the missing link: a high level defined at 80%. > > In the future, it would probably be better to allow the user to specify an > integer ratio for the notification rather than relying on arbitrarily > specified levels.
Does the customer need to differentiate the two levels (medium and high), or the customer only interested in this (80%) specific level? In the latter case, instead of adding a new level I would vote for adding a [sysfs] knob for modifying medium level's threshold. Thanks, Anton -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
