On Thu, 2016-02-25 at 22:17 -0800, Hugh Dickins wrote: > On Fri, 26 Feb 2016, Ebru Akagunduz wrote: > > in Thu, Feb 25, 2016 at 05:35:50PM -0500, Rik van Riel wrote: > > > > Am I forgetting anything obvious? > > > > > > Is this too aggressive? > > > > > > Not aggressive enough? > > > > > > Could PGPGOUT + PGSWPOUT be a useful > > > in-between between just PGSWPOUT or > > > PGSTEAL_*? > > I've no idea offhand, would have to study what each of those > actually means: I'm really not familiar with them myself. There are a few levels of page reclaim activity: PGSTEAL_* - any page was reclaimed, this could just be file pages for streaming file IO,etc PGPGOUT - the VM wrote pages back to disk to reclaim them, this could include file pages PGSWPOUT - the VM wrote something to swap to reclaim memory I am not sure which level of aggressiveness khugepaged should check against, but my gut instinct would probably be the second or third. -- All Rights Reversed.
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