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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/170169">170169</a></dd>
<dt>Author</dt> <dd>akling@apple.com</dd>
<dt>Date</dt> <dd>2014-06-19 18:31:25 -0700 (Thu, 19 Jun 2014)</dd>
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<h3>Log Message</h3>
<pre>When simulating memory pressure, GC *after* releasing WebCore resources.
Since clearing the page cache is likely to create lots of garbage, defer the
synchronous GC until after the WebCore pressure relief, so we can see the
effect of clearing out all those pages.
Rubber-stamped by Gavin Barraclough.
* platform/cocoa/MemoryPressureHandlerCocoa.mm:
(WebCore::MemoryPressureHandler::install):</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreplatformcocoaMemoryPressureHandlerCocoamm">trunk/Source/WebCore/platform/cocoa/MemoryPressureHandlerCocoa.mm</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (170168 => 170169)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2014-06-20 00:49:16 UTC (rev 170168)
+++ trunk/Source/WebCore/ChangeLog 2014-06-20 01:31:25 UTC (rev 170169)
</span><span class="lines">@@ -1,3 +1,16 @@
</span><ins>+2014-06-19 Andreas Kling <akling@apple.com>
+
+ When simulating memory pressure, GC *after* releasing WebCore resources.
+
+ Since clearing the page cache is likely to create lots of garbage, defer the
+ synchronous GC until after the WebCore pressure relief, so we can see the
+ effect of clearing out all those pages.
+
+ Rubber-stamped by Gavin Barraclough.
+
+ * platform/cocoa/MemoryPressureHandlerCocoa.mm:
+ (WebCore::MemoryPressureHandler::install):
+
</ins><span class="cx"> 2014-06-18 Sam Weinig <sam@webkit.org>
</span><span class="cx">
</span><span class="cx"> Move generate prototype and constructor classes into the generated implementation files
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformcocoaMemoryPressureHandlerCocoamm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/cocoa/MemoryPressureHandlerCocoa.mm (170168 => 170169)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/cocoa/MemoryPressureHandlerCocoa.mm 2014-06-20 00:49:16 UTC (rev 170168)
+++ trunk/Source/WebCore/platform/cocoa/MemoryPressureHandlerCocoa.mm 2014-06-20 01:31:25 UTC (rev 170169)
</span><span class="lines">@@ -108,12 +108,12 @@
</span><span class="cx">
</span><span class="cx"> // Allow simulation of memory pressure with "notifyutil -p org.WebKit.lowMemory"
</span><span class="cx"> notify_register_dispatch("org.WebKit.lowMemory", &_notifyToken, dispatch_get_main_queue(), ^(int) {
</span><ins>+ memoryPressureHandler().respondToMemoryPressure(true);
</ins><span class="cx">
</span><span class="cx"> // We only do a synchronous GC when *simulating* memory pressure.
</span><span class="cx"> // This gives us a more consistent picture of live objects at the end of testing.
</span><span class="cx"> gcController().garbageCollectNow();
</span><span class="cx">
</span><del>- memoryPressureHandler().respondToMemoryPressure(true);
</del><span class="cx"> malloc_zone_pressure_relief(nullptr, 0);
</span><span class="cx"> });
</span><span class="cx">
</span></span></pre>
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