Re: [PATCH] test5-pre1 vmfix (rev 8)

Hi again,

Correction:

I had forgot to start a background task during testing:
* Throuput gets up to 2% to 10% better for my tests.

/RogerL

Roger Larsson wrote:

Hi,

Since I am responsible for messing up some aspects of vm
(when fixing others)
here is a patch that tries to solve the introduced problems.

* no more periodic wake up of kswapd - not needed anymore
* no more freeing all zones to (free_pages > pages_high)
* always wakes kswapd up after try_to_free_pages
* kswapd starts when all zones gets zone_wake_kswapd
  (runs once for each zone that hits zone_wake_kswapd)
* removed test for more than pages_high in alloc_pages,
  zones will mostly be in the range [pages_high...pages_low]
* I get 10% better throughput than 2.4.0-test4, YMMV

Note: logic of function keep_kswapd_awake has changed.

/RogerL

--
Home page:
  http://www.norran.net/nra02596/

  ------------------------------------------------------------------------
                                  Name: patch-2.4.0-test5-1-vmfix.8
   patch-2.4.0-test5-1-vmfix.8    Type: Plain Text (text/plain)
                              Encoding: 7bit

--
Home page:
  http://www.norran.net/nra02596/
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux.eu.org/Linux-MM/