Changeset 24439 in webkit

Timestamp:

Jul 18, 2007 9:26:43 PM (17 years ago)

Author:

ggaren

Message:

Reviewed by Dave Hyatt.

<rdar://problem/5345099>

Reduced default WebCore cache size from 32 MB to 23 MB on systems below
512 MB RAM. This improves RPRVT usage in the Safari pageout test by
~10% on a system with 384 MB RAM.

At 23 MB, no extra resources are evicted from the cache during a PLT
run, so this is a safe change PLT-wise. 23 MB is also seems to be a
generous number in real world usage.

• WebView/WebPreferences.m: (+[WebPreferences initialize]):

Location:

trunk/WebKit

Files:

• ChangeLog (modified) (1 diff)
• WebView/WebPreferences.m (modified) (1 diff)
• win/WebPreferences.cpp (modified) (1 diff)

trunk/WebKit/ChangeLog

@@ +1 @@
+2007-07-18  Geoffrey Garen  <ggaren@apple.com>
+
+        Reviewed by Dave Hyatt.
+        
+        <rdar://problem/5345099>
+        
+        Reduced default WebCore cache size from 32 MB to 23 MB on systems below 
+        512 MB RAM. This improves RPRVT usage in the Safari pageout test by 
+        ~10% on a system with 384 MB RAM.
+        
+        At 23 MB, no extra resources are evicted from the cache during a PLT 
+        run, so this is a safe change PLT-wise. 23 MB is also seems to be a
+        generous number in real world usage.
+
+        * WebView/WebPreferences.m:
+        (+[WebPreferences initialize]):
+
 2007-07-18  Anders Carlsson  <andersca@apple.com>
 

trunk/WebKit/WebView/WebPreferences.m

@@ -227 +227 @@
     else if (memSize >= 1024)
         objectCacheSize = 64 * 1024 * 1024;
+    else if (memSize >= 512)
+        objectCacheSize = 32 * 1024 * 1024;
     else
-        objectCacheSize = 32 * 1024 * 1024;
+        objectCacheSize = 23 * 1024 * 1024; 
     NSString *objectCacheSizeString = [NSString stringWithFormat:@"%d", objectCacheSize];
 

trunk/WebKit/win/WebPreferences.cpp

@@ -158 +158 @@
     else if (memSize >= 1024)
         objectCacheSize = 64 * 1024 * 1024;
+    else if (memSize >= 512)
+        objectCacheSize = 32 * 1024 * 1024;
     else
-        objectCacheSize = 32 * 1024 * 1024;
+        objectCacheSize = 23 * 1024 * 1024; 
 
     CFStringRef key = CFSTR(WebKitStandardFontPreferenceKey);