Re: [PATCH 2/3] mm: Ensure that mark_page_accessed moves pages tothe active list

[Ric Mason]

On 05/01/2013 04:06 PM, Mel Gorman wrote:
> On Wed, May 01, 2013 at 01:41:34PM +0800, Sam Ben wrote:
> > Hi Mel,
> > On 04/30/2013 12:31 AM, Mel Gorman wrote:
> > > If a page is on a pagevec then it is !PageLRU and mark_page_accessed()
> > > may fail to move a page to the active list as expected. Now that the
> > > LRU is selected at LRU drain time, mark pages PageActive if they are
> > > on a pagevec so it gets moved to the correct list at LRU drain time.
> > > Using a debugging patch it was found that for a simple git checkout
> > > based workload that pages were never added to the active file list in
> > Could you show us the details of your workload?
> The workload is git checkouts of a fixed number of commits for the

Is there script which you used?

> kernel git tree. It starts with a warm-up run that is not timed and then
> records the time for a number of iterations.

How to record the time for a number of iterations? Is the iteration here 
means lru scan?

>

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