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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/212043">212043</a></dd>
<dt>Author</dt> <dd>simon.fraser@apple.com</dd>
<dt>Date</dt> <dd>2017-02-09 21:26:08 -0800 (Thu, 09 Feb 2017)</dd>
</dl>

<h3>Log Message</h3>
<pre>Improve IOSurfacePool logging
https://bugs.webkit.org/show_bug.cgi?id=168098

Reviewed by Tim Horton.

Pass a string to DUMP_POOL_STATISTICS so we can tell what's triggering the
logging.

* platform/graphics/cg/IOSurfacePool.cpp:
(WebCore::IOSurfacePool::takeSurface):
(WebCore::IOSurfacePool::addSurface):
(WebCore::IOSurfacePool::evict):
(WebCore::IOSurfacePool::collectionTimerFired):
(WebCore::IOSurfacePool::showPoolStatistics):
* platform/graphics/cg/IOSurfacePool.h:</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicscgIOSurfacePoolcpp">trunk/Source/WebCore/platform/graphics/cg/IOSurfacePool.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicscgIOSurfacePoolh">trunk/Source/WebCore/platform/graphics/cg/IOSurfacePool.h</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (212042 => 212043)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2017-02-10 05:08:59 UTC (rev 212042)
+++ trunk/Source/WebCore/ChangeLog        2017-02-10 05:26:08 UTC (rev 212043)
</span><span class="lines">@@ -1,3 +1,21 @@
</span><ins>+2017-02-09  Simon Fraser  &lt;simon.fraser@apple.com&gt;
+
+        Improve IOSurfacePool logging
+        https://bugs.webkit.org/show_bug.cgi?id=168098
+
+        Reviewed by Tim Horton.
+
+        Pass a string to DUMP_POOL_STATISTICS so we can tell what's triggering the
+        logging.
+
+        * platform/graphics/cg/IOSurfacePool.cpp:
+        (WebCore::IOSurfacePool::takeSurface):
+        (WebCore::IOSurfacePool::addSurface):
+        (WebCore::IOSurfacePool::evict):
+        (WebCore::IOSurfacePool::collectionTimerFired):
+        (WebCore::IOSurfacePool::showPoolStatistics):
+        * platform/graphics/cg/IOSurfacePool.h:
+
</ins><span class="cx"> 2017-02-09  Alex Christensen  &lt;achristensen@webkit.org&gt;
</span><span class="cx"> 
</span><span class="cx">         Unreviewed, rolling out r212040.
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicscgIOSurfacePoolcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/cg/IOSurfacePool.cpp (212042 => 212043)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/cg/IOSurfacePool.cpp        2017-02-10 05:08:59 UTC (rev 212042)
+++ trunk/Source/WebCore/platform/graphics/cg/IOSurfacePool.cpp        2017-02-10 05:26:08 UTC (rev 212043)
</span><span class="lines">@@ -41,11 +41,11 @@
</span><span class="cx"> // they can't be immediately returned when requested (but will be freed up in the future).
</span><span class="cx"> const size_t maximumInUseBytes = defaultMaximumBytesCached / 2;
</span><span class="cx"> 
</span><del>-#define ENABLE_IOSURFACE_POOL_STATISTICS false
</del><ins>+#define ENABLE_IOSURFACE_POOL_STATISTICS 0
</ins><span class="cx"> #if ENABLE_IOSURFACE_POOL_STATISTICS
</span><del>-#define DUMP_POOL_STATISTICS() do { showPoolStatistics(); } while (0);
</del><ins>+#define DUMP_POOL_STATISTICS(reason) do { showPoolStatistics(reason); } while (0);
</ins><span class="cx"> #else
</span><del>-#define DUMP_POOL_STATISTICS() ((void)0)
</del><ins>+#define DUMP_POOL_STATISTICS(reason) ((void)0)
</ins><span class="cx"> #endif
</span><span class="cx"> 
</span><span class="cx"> namespace WebCore {
</span><span class="lines">@@ -112,7 +112,7 @@
</span><span class="cx">     CachedSurfaceMap::iterator mapIter = m_cachedSurfaces.find(size);
</span><span class="cx"> 
</span><span class="cx">     if (mapIter == m_cachedSurfaces.end()) {
</span><del>-        DUMP_POOL_STATISTICS();
</del><ins>+        DUMP_POOL_STATISTICS(&quot;takeSurface - none with matching size&quot;);
</ins><span class="cx">         return nullptr;
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="lines">@@ -134,7 +134,7 @@
</span><span class="cx"> 
</span><span class="cx">         surface-&gt;setIsVolatile(false);
</span><span class="cx"> 
</span><del>-        DUMP_POOL_STATISTICS();
</del><ins>+        DUMP_POOL_STATISTICS(&quot;takeSurface - taking&quot;);
</ins><span class="cx">         return surface;
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="lines">@@ -151,11 +151,11 @@
</span><span class="cx"> 
</span><span class="cx">         surface-&gt;setIsVolatile(false);
</span><span class="cx"> 
</span><del>-        DUMP_POOL_STATISTICS();
</del><ins>+        DUMP_POOL_STATISTICS(&quot;takeSurface - taking in-use&quot;);
</ins><span class="cx">         return surface;
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    DUMP_POOL_STATISTICS();
</del><ins>+    DUMP_POOL_STATISTICS(&quot;takeSurface - failing&quot;);
</ins><span class="cx">     return nullptr;
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -184,12 +184,12 @@
</span><span class="cx">     if (surfaceIsInUse) {
</span><span class="cx">         m_inUseSurfaces.prepend(WTFMove(surface));
</span><span class="cx">         scheduleCollectionTimer();
</span><del>-        DUMP_POOL_STATISTICS();
</del><ins>+        DUMP_POOL_STATISTICS(&quot;addSurface - in-use&quot;);
</ins><span class="cx">         return;
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     insertSurfaceIntoPool(WTFMove(surface));
</span><del>-    DUMP_POOL_STATISTICS();
</del><ins>+    DUMP_POOL_STATISTICS(&quot;addSurface&quot;);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void IOSurfacePool::insertSurfaceIntoPool(std::unique_ptr&lt;IOSurface&gt; surface)
</span><span class="lines">@@ -240,8 +240,11 @@
</span><span class="cx"> 
</span><span class="cx"> void IOSurfacePool::evict(size_t additionalSize)
</span><span class="cx"> {
</span><ins>+    DUMP_POOL_STATISTICS(&quot;before evict&quot;);
+
</ins><span class="cx">     if (additionalSize &gt;= m_maximumBytesCached) {
</span><span class="cx">         discardAllSurfaces();
</span><ins>+        DUMP_POOL_STATISTICS(&quot;after evict all&quot;);
</ins><span class="cx">         return;
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="lines">@@ -261,6 +264,8 @@
</span><span class="cx"> 
</span><span class="cx">     while (m_inUseBytesCached &gt; maximumInUseBytes || m_bytesCached &gt; targetSize)
</span><span class="cx">         tryEvictInUseSurface();
</span><ins>+
+    DUMP_POOL_STATISTICS(&quot;after evict&quot;);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void IOSurfacePool::collectInUseSurfaces()
</span><span class="lines">@@ -310,7 +315,7 @@
</span><span class="cx">         m_collectionTimer.stop();
</span><span class="cx"> 
</span><span class="cx">     platformGarbageCollectNow();
</span><del>-    DUMP_POOL_STATISTICS();
</del><ins>+    DUMP_POOL_STATISTICS(&quot;collectionTimerFired&quot;);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void IOSurfacePool::scheduleCollectionTimer()
</span><span class="lines">@@ -331,10 +336,10 @@
</span><span class="cx">     platformGarbageCollectNow();
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void IOSurfacePool::showPoolStatistics()
</del><ins>+void IOSurfacePool::showPoolStatistics(const char* reason)
</ins><span class="cx"> {
</span><span class="cx"> #if ENABLE_IOSURFACE_POOL_STATISTICS
</span><del>-    WTFLogAlways(&quot;IOSurfacePool Statistics\n&quot;);
</del><ins>+    WTFLogAlways(&quot;IOSurfacePool Statistics: %s\n&quot;, reason);
</ins><span class="cx">     unsigned totalSurfaces = 0;
</span><span class="cx">     size_t totalSize = 0;
</span><span class="cx">     size_t totalPurgeableSize = 0;
</span><span class="lines">@@ -356,7 +361,7 @@
</span><span class="cx">         totalSize += queueSize;
</span><span class="cx">         totalPurgeableSize += queuePurgeableSize;
</span><span class="cx"> 
</span><del>-        WTFLogAlways(&quot;   %d x %d: %zu surfaces for %zd KB (%zd KB purgeable)&quot;, keyAndSurfaces.key.width(), keyAndSurfaces.key.height(), keyAndSurfaces.value.size(), queueSize / 1024, queuePurgeableSize / 1024);
</del><ins>+        WTFLogAlways(&quot;   %d x %d: %zu surfaces for %.2f MB (%.2f MB purgeable)&quot;, keyAndSurfaces.key.width(), keyAndSurfaces.key.height(), keyAndSurfaces.value.size(), queueSize / (1024.0 * 1024.0), queuePurgeableSize / (1024.0 * 1024.0));
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     size_t inUseSize = 0;
</span><span class="lines">@@ -366,13 +371,15 @@
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     totalSize += inUseSize;
</span><del>-    WTFLogAlways(&quot;   IN USE: %zu surfaces for %zd KB&quot;, m_inUseSurfaces.size(), inUseSize / 1024);
</del><ins>+    WTFLogAlways(&quot;   IN USE: %zu surfaces for %.2f MB&quot;, m_inUseSurfaces.size(), inUseSize / (1024.0 * 1024.0));
</ins><span class="cx"> 
</span><span class="cx">     // FIXME: Should move consistency checks elsewhere, and always perform them in debug builds.
</span><span class="cx">     ASSERT(m_bytesCached == totalSize);
</span><span class="cx">     ASSERT(m_bytesCached &lt;= m_maximumBytesCached);
</span><span class="cx"> 
</span><del>-    WTFLogAlways(&quot;   TOTAL: %d surfaces for %zd KB (%zd KB purgeable)\n&quot;, totalSurfaces, totalSize / 1024, totalPurgeableSize / 1024);
</del><ins>+    WTFLogAlways(&quot;   TOTAL: %d surfaces for %.2f MB (%.2f MB purgeable)\n&quot;, totalSurfaces, totalSize / (1024.0 * 1024.0), totalPurgeableSize / (1024.0 * 1024.0));
+#else
+    UNUSED_PARAM(reason);
</ins><span class="cx"> #endif
</span><span class="cx"> }
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicscgIOSurfacePoolh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/cg/IOSurfacePool.h (212042 => 212043)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/cg/IOSurfacePool.h        2017-02-10 05:08:59 UTC (rev 212042)
+++ trunk/Source/WebCore/platform/graphics/cg/IOSurfacePool.h        2017-02-10 05:26:08 UTC (rev 212043)
</span><span class="lines">@@ -53,8 +53,6 @@
</span><span class="cx"> 
</span><span class="cx">     WEBCORE_EXPORT void setPoolSize(size_t);
</span><span class="cx"> 
</span><del>-    void showPoolStatistics();
-
</del><span class="cx"> private:
</span><span class="cx">     IOSurfacePool();
</span><span class="cx"> 
</span><span class="lines">@@ -92,6 +90,8 @@
</span><span class="cx"> 
</span><span class="cx">     void platformGarbageCollectNow();
</span><span class="cx"> 
</span><ins>+    void showPoolStatistics(const char*);
+
</ins><span class="cx">     Timer m_collectionTimer;
</span><span class="cx">     CachedSurfaceMap m_cachedSurfaces;
</span><span class="cx">     CachedSurfaceQueue m_inUseSurfaces;
</span></span></pre>
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