Changeset 184041 in webkit

Timestamp:

May 9, 2015, 10:37:16 AM (11 years ago)

Author:

Chris Dumez

Message:

Invalidate the FontCache on WebProcess suspension / critical memory pressure
​https://bugs.webkit.org/show_bug.cgi?id=144821

Reviewed by Antti Koivisto.

Invalidate the FontCache on WebProcess suspension / critical memory
pressure to free a bit more memory (an extra 4-16Kb per WebProcess on
the pages I tested). We already purge inactive font data on
non-critical memory warning but invalidating the whole FontCache takes
care of clearing the FontCascade cache and the fontPlatformData cache
as well.

• platform/MemoryPressureHandler.cpp:

(WebCore::MemoryPressureHandler::releaseCriticalMemory):

Location:

trunk/Source/WebCore

Files:

• ChangeLog (modified) (1 diff)
• platform/MemoryPressureHandler.cpp (modified) (1 diff)

trunk/Source/WebCore/ChangeLog

@@ +1 @@
+2015-05-09  Chris Dumez  <cdumez@apple.com>
+
+        Invalidate the FontCache on WebProcess suspension / critical memory pressure
+        https://bugs.webkit.org/show_bug.cgi?id=144821
+
+        Reviewed by Antti Koivisto.
+
+        Invalidate the FontCache on WebProcess suspension / critical memory
+        pressure to free a bit more memory (an extra 4-16Kb per WebProcess on
+        the pages I tested). We already purge inactive font data on
+        non-critical memory warning but invalidating the whole FontCache takes
+        care of clearing the FontCascade cache and the fontPlatformData cache
+        as well.
+
+        * platform/MemoryPressureHandler.cpp:
+        (WebCore::MemoryPressureHandler::releaseCriticalMemory):
+
 2015-05-09  Yoav Weiss  <yoav@yoav.ws>
 

trunk/Source/WebCore/platform/MemoryPressureHandler.cpp

@@ -130 +130 @@
         gcController().discardAllCompiledCode();
     }
+
+    {
+        ReliefLogger log("Invalidate font cache");
+        FontCache::singleton().invalidate();
+    }
 }