Attachment 341044 Details for Bug 185853 – Patch

[patch] Patch

bug-185853-20180522161453.patch (text/plain), 16.39 KB, created by Simon Fraser (smfr) on 2018-05-22 16:14:54 PDT

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Creator: Simon Fraser (smfr)

Created: 2018-05-22 16:14:54 PDT

Size: 16.39 KB

patch

obsolete

>Subversion Revision: 232071
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 6cac44d49e9584cd78bc0987fac07cb6ff17b20e..862f32e138c56472d1a22b4ed1cb85e316696176 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,33 @@
>+2018-05-22  Simon Fraser  <simon.fraser@apple.com>
>+
>+        Add notifyutil callbacks to dump the memory cache, and the list of live Pages and Documents
>+        https://bugs.webkit.org/show_bug.cgi?id=185853
>+
>+        Reviewed by Keith Miller.
>+
>+        Add a notifyutil callback to dump the PageCache, which dumps the stats, and the list of live pages.
>+        This can be invoked on iOS and macOS via "notifyutil -p com.apple.WebKit.showPageCache".
>+        
>+        Add a notifyutil callback that dumps the list of all Pages, and the list of all Documents, with
>+        Document pointer address and URL.
>+        This can be invoked on iOS and macOS via "notifyutil -p com.apple.WebKit.showAllDocuments".
>+
>+        * history/PageCache.cpp:
>+        (WebCore::PageCache::PageCache):
>+        (WebCore::PageCache::dump const):
>+        * history/PageCache.h:
>+        * loader/cache/CachedResource.h:
>+        (WebCore::CachedResource::numberOfClients const):
>+        (WebCore::CachedResource::count const): Deleted.
>+        * loader/cache/MemoryCache.cpp:
>+        (WebCore::MemoryCache::MemoryCache):
>+        (WebCore::MemoryCache::pruneLiveResourcesToSize):
>+        (WebCore::MemoryCache::dumpStats):
>+        (WebCore::MemoryCache::dumpLRULists const):
>+        * loader/cache/MemoryCache.h:
>+        * page/mac/PageMac.mm:
>+        (WebCore::Page::platformInitialize):
>+
> 2018-05-22  Keith Miller  <keith_miller@apple.com>
> 
>         We should have a CoW storage for NewArrayBuffer arrays.
>diff --git a/Source/WebCore/PAL/ChangeLog b/Source/WebCore/PAL/ChangeLog
>index f394e3d1a5a4545bd832a800ed5ebf54f883746a..8c70e9ffd524b383fba0f6ca44022cbc0d14f70d 100644
>--- a/Source/WebCore/PAL/ChangeLog
>+++ b/Source/WebCore/PAL/ChangeLog
>@@ -1,3 +1,16 @@
>+2018-05-22  Simon Fraser  <simon.fraser@apple.com>
>+
>+        Add notifyutil callbacks to dump the memory cache, and the list of live Pages and Documents
>+        https://bugs.webkit.org/show_bug.cgi?id=185853
>+
>+        Reviewed by Keith Miller.
>+        
>+        Compile registerNotifyCallback in release builds.
>+
>+        * pal/Logging.cpp:
>+        (PAL::registerNotifyCallback):
>+        * pal/Logging.h:
>+
> 2018-05-22  Ryan Haddad  <ryanhaddad@apple.com>
> 
>         Unreviewed, rolling out r232052.
>diff --git a/Source/WebCore/PAL/pal/Logging.cpp b/Source/WebCore/PAL/pal/Logging.cpp
>index af817ad75d0c75cfa6dcb4368299332cf3bdf0b2..ac85b6d8271cd7879fae6287707c62ea5e6b9152 100644
>--- a/Source/WebCore/PAL/pal/Logging.cpp
>+++ b/Source/WebCore/PAL/pal/Logging.cpp
>@@ -81,7 +81,8 @@ void initializeLogChannelsIfNecessary(std::optional<String> logChannelString)
>     WTFInitializeLogChannelStatesFromString(logChannels, logChannelCount, enabledChannelsString.utf8().data());
> }
> 
>-#ifndef NDEBUG
>+#endif // !LOG_DISABLED || !RELEASE_LOG_DISABLED
>+
> void registerNotifyCallback(const String& notifyID, WTF::Function<void()>&& callback)
> {
> #if PLATFORM(COCOA)
>@@ -94,9 +95,6 @@ void registerNotifyCallback(const String& notifyID, WTF::Function<void()>&& call
>     UNUSED_PARAM(callback);
> #endif
> }
>-#endif
>-
>-#endif // !LOG_DISABLED || !RELEASE_LOG_DISABLED
> 
> } // namespace WebCore
> 
>diff --git a/Source/WebCore/PAL/pal/Logging.h b/Source/WebCore/PAL/pal/Logging.h
>index a1cddd844919705fcd1b598cce19fea53880b88e..031399c6f72ad8e38678284889b2a5127294e6a9 100644
>--- a/Source/WebCore/PAL/pal/Logging.h
>+++ b/Source/WebCore/PAL/pal/Logging.h
>@@ -45,11 +45,10 @@ PAL_LOG_CHANNELS(DECLARE_LOG_CHANNEL)
> String logLevelString();
> bool isLogChannelEnabled(const String& name);
> PAL_EXPORT void setLogChannelToAccumulate(const String& name);
>-#ifndef NDEBUG
>-void registerNotifyCallback(const String& notifyID, WTF::Function<void()>&& callback);
>-#endif
> 
> #endif // !LOG_DISABLED || !RELEASE_LOG_DISABLED
> 
>+PAL_EXPORT void registerNotifyCallback(const String&, WTF::Function<void()>&&);
>+
> } // namespace PAL
> 
>diff --git a/Source/WebCore/history/PageCache.cpp b/Source/WebCore/history/PageCache.cpp
>index edb75c2289bec853f89b962366f0c11c783b4f5a..44906cef649d05ef8d2df6d7ca447f83c4f86c82 100644
>--- a/Source/WebCore/history/PageCache.cpp
>+++ b/Source/WebCore/history/PageCache.cpp
>@@ -48,6 +48,7 @@
> #include "ScriptDisallowedScope.h"
> #include "Settings.h"
> #include "SubframeLoader.h"
>+#include <pal/Logging.h>
> #include <wtf/MemoryPressureHandler.h>
> #include <wtf/NeverDestroyed.h>
> #include <wtf/SetForScope.h>
>@@ -277,7 +278,26 @@ PageCache& PageCache::singleton()
>     static NeverDestroyed<PageCache> globalPageCache;
>     return globalPageCache;
> }
>-    
>+
>+PageCache::PageCache()
>+{
>+    static std::once_flag onceFlag;
>+    std::call_once(onceFlag, [] {
>+        PAL::registerNotifyCallback("com.apple.WebKit.showPageCache", [] {
>+            PageCache::singleton().dump();
>+        });
>+    });
>+}
>+
>+void PageCache::dump() const
>+{
>+    WTFLogAlways("\nPage Cache:");
>+    for (auto& item : m_items) {
>+        CachedPage& cachedPage = *item->m_cachedPage;
>+        WTFLogAlways("  Page %p, document %p %s", &cachedPage.page(), cachedPage.document(), cachedPage.document() ? cachedPage.document()->url().string().utf8().data() : "");
>+    }
>+}
>+
> bool PageCache::canCache(Page& page) const
> {
>     if (!m_maxSize) {
>diff --git a/Source/WebCore/history/PageCache.h b/Source/WebCore/history/PageCache.h
>index 51c1e0547e0136edf8694985197d6ad588bf491c..a62df9ac857489cd1d391030a83987803852de6f 100644
>--- a/Source/WebCore/history/PageCache.h
>+++ b/Source/WebCore/history/PageCache.h
>@@ -68,12 +68,13 @@ public:
> #endif
> 
> private:
>-    PageCache() = default; // Use singleton() instead.
>+    PageCache();
>     ~PageCache() = delete; // Make sure nobody accidentally calls delete -- WebCore does not delete singletons.
> 
>     static bool canCachePageContainingThisFrame(Frame&);
> 
>     void prune(PruningReason);
>+    void dump() const;
> 
>     ListHashSet<RefPtr<HistoryItem>> m_items;
>     unsigned m_maxSize {0};
>diff --git a/Source/WebCore/loader/cache/CachedResource.h b/Source/WebCore/loader/cache/CachedResource.h
>index 01913bcb371e2dad9ebeab7e85c64aa19e2280a8..f3290f51c722917a7ce4090173587639c9527270 100644
>--- a/Source/WebCore/loader/cache/CachedResource.h
>+++ b/Source/WebCore/loader/cache/CachedResource.h
>@@ -144,7 +144,7 @@ public:
>     virtual void allClientsRemoved();
>     void destroyDecodedDataIfNeeded();
> 
>-    unsigned count() const { return m_clients.size(); }
>+    unsigned numberOfClients() const { return m_clients.size(); }
> 
>     Status status() const { return static_cast<Status>(m_status); }
>     void setStatus(Status status) { m_status = status; }
>diff --git a/Source/WebCore/loader/cache/MemoryCache.cpp b/Source/WebCore/loader/cache/MemoryCache.cpp
>index 8c486b3ec233d56305b8718be7d3cc1f8042c13e..945803c20ae10b3b845a211f2fe96efdfa62d41e 100644
>--- a/Source/WebCore/loader/cache/MemoryCache.cpp
>+++ b/Source/WebCore/loader/cache/MemoryCache.cpp
>@@ -39,6 +39,7 @@
> #include "WorkerGlobalScope.h"
> #include "WorkerLoaderProxy.h"
> #include "WorkerThread.h"
>+#include <pal/Logging.h>
> #include <stdio.h>
> #include <wtf/MathExtras.h>
> #include <wtf/NeverDestroyed.h>
>@@ -59,16 +60,19 @@ MemoryCache& MemoryCache::singleton()
> }
> 
> MemoryCache::MemoryCache()
>-    : m_disabled(false)
>-    , m_inPruneResources(false)
>-    , m_capacity(cDefaultCacheCapacity)
>-    , m_minDeadCapacity(0)
>+    : m_capacity(cDefaultCacheCapacity)
>     , m_maxDeadCapacity(cDefaultCacheCapacity)
>-    , m_liveSize(0)
>-    , m_deadSize(0)
>     , m_pruneTimer(*this, &MemoryCache::prune)
> {
>     static_assert(sizeof(long long) > sizeof(unsigned), "Numerical overflow can happen when adjusting the size of the cached memory.");
>+
>+    static std::once_flag onceFlag;
>+    std::call_once(onceFlag, [] {
>+        PAL::registerNotifyCallback("com.apple.WebKit.showMemoryCache", [] {
>+            MemoryCache::singleton().dumpStats();
>+            MemoryCache::singleton().dumpLRULists(true);
>+        });
>+    });
> }
> 
> auto MemoryCache::sessionResourceMap(PAL::SessionID sessionID) const -> CachedResourceMap*
>@@ -329,6 +333,7 @@ void MemoryCache::pruneLiveResourcesToSize(unsigned targetSize, bool shouldDestr
> 
>             // Destroy our decoded data. This will remove us from m_liveDecodedResources, and possibly move us
>             // to a different LRU list in m_allResources.
>+            WTFLogAlways("pruneLiveResourcesToSize: trying to prune %p", current);
>             current->destroyDecodedData();
> 
>             if (targetSize && m_liveSize <= targetSize)
>@@ -733,35 +738,47 @@ void MemoryCache::pruneSoon()
>     m_pruneTimer.startOneShot(0_s);
> }
> 
>-#ifndef NDEBUG
> void MemoryCache::dumpStats()
> {
>     Statistics s = getStatistics();
>-    printf("%-13s %-13s %-13s %-13s %-13s\n", "", "Count", "Size", "LiveSize", "DecodedSize");
>-    printf("%-13s %-13s %-13s %-13s %-13s\n", "-------------", "-------------", "-------------", "-------------", "-------------");
>-    printf("%-13s %13d %13d %13d %13d\n", "Images", s.images.count, s.images.size, s.images.liveSize, s.images.decodedSize);
>-    printf("%-13s %13d %13d %13d %13d\n", "CSS", s.cssStyleSheets.count, s.cssStyleSheets.size, s.cssStyleSheets.liveSize, s.cssStyleSheets.decodedSize);
>+    WTFLogAlways("\nMemory Cache");
>+    WTFLogAlways("%-13s %-13s %-13s %-13s %-13s\n", "", "Count", "Size", "LiveSize", "DecodedSize");
>+    WTFLogAlways("%-13s %-13s %-13s %-13s %-13s\n", "-------------", "-------------", "-------------", "-------------", "-------------");
>+    WTFLogAlways("%-13s %13d %13d %13d %13d\n", "Images", s.images.count, s.images.size, s.images.liveSize, s.images.decodedSize);
>+    WTFLogAlways("%-13s %13d %13d %13d %13d\n", "CSS", s.cssStyleSheets.count, s.cssStyleSheets.size, s.cssStyleSheets.liveSize, s.cssStyleSheets.decodedSize);
> #if ENABLE(XSLT)
>-    printf("%-13s %13d %13d %13d %13d\n", "XSL", s.xslStyleSheets.count, s.xslStyleSheets.size, s.xslStyleSheets.liveSize, s.xslStyleSheets.decodedSize);
>+    WTFLogAlways("%-13s %13d %13d %13d %13d\n", "XSL", s.xslStyleSheets.count, s.xslStyleSheets.size, s.xslStyleSheets.liveSize, s.xslStyleSheets.decodedSize);
> #endif
>-    printf("%-13s %13d %13d %13d %13d\n", "JavaScript", s.scripts.count, s.scripts.size, s.scripts.liveSize, s.scripts.decodedSize);
>-    printf("%-13s %13d %13d %13d %13d\n", "Fonts", s.fonts.count, s.fonts.size, s.fonts.liveSize, s.fonts.decodedSize);
>-    printf("%-13s %-13s %-13s %-13s %-13s\n\n", "-------------", "-------------", "-------------", "-------------", "-------------");
>+    WTFLogAlways("%-13s %13d %13d %13d %13d\n", "JavaScript", s.scripts.count, s.scripts.size, s.scripts.liveSize, s.scripts.decodedSize);
>+    WTFLogAlways("%-13s %13d %13d %13d %13d\n", "Fonts", s.fonts.count, s.fonts.size, s.fonts.liveSize, s.fonts.decodedSize);
>+    WTFLogAlways("%-13s %-13s %-13s %-13s %-13s\n\n", "-------------", "-------------", "-------------", "-------------", "-------------");
>+
>+    unsigned countTotal = s.images.count + s.cssStyleSheets.count + s.scripts.count + s.fonts.count;
>+    unsigned sizeTotal = s.images.size + s.cssStyleSheets.size + s.scripts.size + s.fonts.size;
>+    unsigned liveSizeTotal = s.images.liveSize + s.cssStyleSheets.liveSize + s.scripts.liveSize + s.fonts.liveSize;
>+    unsigned decodedSizeTotal = s.images.decodedSize + s.cssStyleSheets.decodedSize + s.scripts.decodedSize + s.fonts.decodedSize;
>+#if ENABLE(XSLT)
>+    countTotal += s.xslStyleSheets.count;
>+    sizeTotal += s.xslStyleSheets.size;
>+    liveSizeTotal += s.xslStyleSheets.liveSize;
>+    decodedSizeTotal += s.xslStyleSheets.decodedSize;
>+#endif
>+
>+    WTFLogAlways("%-13s %13d %11.2fKB %11.2fKB %11.2fKB\n", "Total", countTotal, sizeTotal / 1024., liveSizeTotal / 1024., decodedSizeTotal / 1024.);
> }
> 
> void MemoryCache::dumpLRULists(bool includeLive) const
> {
>-    printf("LRU-SP lists in eviction order (Kilobytes decoded, Kilobytes encoded, Access count, Referenced):\n");
>+    WTFLogAlways("LRU-SP lists in eviction order (Kilobytes decoded, Kilobytes encoded, Access count, Referenced):\n");
> 
>     int size = m_allResources.size();
>     for (int i = size - 1; i >= 0; i--) {
>-        printf("\n\nList %d: ", i);
>+        WTFLogAlways("\nList %d:\n", i);
>         for (auto* resource : *m_allResources[i]) {
>             if (includeLive || !resource->hasClients())
>-                printf("(%.1fK, %.1fK, %uA, %dR); ", resource->decodedSize() / 1024.0f, (resource->encodedSize() + resource->overheadSize()) / 1024.0f, resource->accessCount(), resource->hasClients());
>+                WTFLogAlways("  %.100s %.1fK, %.1fK, accesses: %u, clients: %d\n", resource->url().string().utf8().data(), resource->decodedSize() / 1024.0f, (resource->encodedSize() + resource->overheadSize()) / 1024.0f, resource->accessCount(), resource->numberOfClients());
>         }
>     }
> }
>-#endif
> 
> } // namespace WebCore
>diff --git a/Source/WebCore/loader/cache/MemoryCache.h b/Source/WebCore/loader/cache/MemoryCache.h
>index d26eec152eb7d3b67a8ad325556645407b1c0952..d716798a4ce1d97d61d313e9518b7dc2269f705c 100644
>--- a/Source/WebCore/loader/cache/MemoryCache.h
>+++ b/Source/WebCore/loader/cache/MemoryCache.h
>@@ -176,10 +176,9 @@ private:
>     ~MemoryCache(); // Not implemented to make sure nobody accidentally calls delete -- WebCore does not delete singletons.
> 
>     LRUList& lruListFor(CachedResource&);
>-#ifndef NDEBUG
>+
>     void dumpStats();
>     void dumpLRULists(bool includeLive) const;
>-#endif
> 
>     unsigned liveCapacity() const;
>     unsigned deadCapacity() const;
>@@ -190,16 +189,16 @@ private:
>     CachedResourceMap& ensureSessionResourceMap(PAL::SessionID);
>     CachedResourceMap* sessionResourceMap(PAL::SessionID) const;
> 
>-    bool m_disabled;  // Whether or not the cache is enabled.
>-    bool m_inPruneResources;
>+    bool m_disabled { false };
>+    bool m_inPruneResources { false };
> 
>     unsigned m_capacity;
>-    unsigned m_minDeadCapacity;
>+    unsigned m_minDeadCapacity { 0 };
>     unsigned m_maxDeadCapacity;
>     Seconds m_deadDecodedDataDeletionInterval;
> 
>-    unsigned m_liveSize; // The number of bytes currently consumed by "live" resources in the cache.
>-    unsigned m_deadSize; // The number of bytes currently consumed by "dead" resources in the cache.
>+    unsigned m_liveSize { 0 }; // The number of bytes currently consumed by "live" resources in the cache.
>+    unsigned m_deadSize { 0 }; // The number of bytes currently consumed by "dead" resources in the cache.
> 
>     // Size-adjusted and popularity-aware LRU list collection for cache objects.  This collection can hold
>     // more resources than the cached resource map, since it can also hold "stale" multiple versions of objects that are
>diff --git a/Source/WebCore/page/mac/PageMac.mm b/Source/WebCore/page/mac/PageMac.mm
>index edf18107e2004eed48c3b1293a31cbe174e22543..e743d6ea87c05b00770639524658384c9050d34a 100644
>--- a/Source/WebCore/page/mac/PageMac.mm
>+++ b/Source/WebCore/page/mac/PageMac.mm
>@@ -52,16 +52,35 @@ void Page::platformInitialize()
>     addSchedulePair(SchedulePair::create([[NSRunLoop currentRunLoop] getCFRunLoop], kCFRunLoopCommonModes));
> #endif
> 
>-#if ENABLE(TREE_DEBUGGING)
>     static std::once_flag onceFlag;
>     std::call_once(onceFlag, [] {
>+#if ENABLE(TREE_DEBUGGING)
>         PAL::registerNotifyCallback("com.apple.WebKit.showRenderTree", printRenderTreeForLiveDocuments);
>         PAL::registerNotifyCallback("com.apple.WebKit.showLayerTree", printLayerTreeForLiveDocuments);
> #if ENABLE(LAYOUT_FORMATTING_CONTEXT)
>         PAL::registerNotifyCallback("com.apple.WebKit.showLayoutTree", Layout::printLayoutTreeForLiveDocuments);
> #endif
>+#endif // ENABLE(TREE_DEBUGGING)
>+
>+        PAL::registerNotifyCallback("com.apple.WebKit.showAllDocuments", [] {
>+            unsigned numPages = 0;
>+            Page::forEachPage([&numPages](Page&) {
>+                ++numPages;
>+            });
>+
>+            WTFLogAlways("%u live pages:", numPages);
>+
>+            Page::forEachPage([](Page& page) {
>+                const auto* mainFrameDocument = page.mainFrame().document();
>+                WTFLogAlways("Page %p with main document %p %s", &page, mainFrameDocument, mainFrameDocument ? mainFrameDocument->url().string().utf8().data() : "");
>+            });
>+
>+            WTFLogAlways("%u live documents:", Document::allDocuments().size());
>+            for (const auto* document : Document::allDocuments()) {
>+                WTFLogAlways("Document %p %s", document, document->url().string().utf8().data());
>+            }
>+        });
>     });
>-#endif
> }
> 
> void Page::addSchedulePair(Ref<SchedulePair>&& pair)

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Attachments on bug 185853: 340930 | 341029 | 341043 | 341044