[cgutman] 54540: [NTOSKRNL] - Always trim at least MiMinimumPagesPerRun for each call to MiTrimMemoryConsumer to reduce cache thrashing

Author: cgutman
Date: Tue Nov 29 18:32:23 2011
New Revision: 54540

URL: http://svn.reactos.org/svn/reactos?rev=54540&view=rev
Log:
[NTOSKRNL]
- Always trim at least MiMinimumPagesPerRun for each call to MiTrimMemoryConsumer to reduce cache thrashing

Modified:
    trunk/reactos/ntoskrnl/mm/balance.c

Modified: trunk/reactos/ntoskrnl/mm/balance.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/balance.c?rev=5...
==============================================================================
--- trunk/reactos/ntoskrnl/mm/balance.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/balance.c [iso-8859-1] Tue Nov 29 18:32:23 2011
@@ -146,12 +146,9 @@
    LONG Target;
    ULONG NrFreedPages;

-   Target = MiMemoryConsumers[Consumer].PagesUsed -
-            MiMemoryConsumers[Consumer].PagesTarget;
-   if (Target < 1)
-   {
-      Target = 1;
-   }
+   Target = max(MiMinimumPagesPerRun,
+                MiMemoryConsumers[Consumer].PagesUsed -
+                MiMemoryConsumers[Consumer].PagesTarget);

if (MiMemoryConsumers[Consumer].Trim != NULL)
    {