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e0fd75b5ab
This caused us to lose our gn check certification. :( Turns out gn check was just ignoring all the header paths it didn't understand and so gn check passing for sky wasn't meaning much. I tried to straighten out some of the mess in this CL, but its going to take several more rounds of massaging before gn check passes again. On the bright side (almost) all of our headers are absolute now. Turns out my script (attached to the bug) didn't notice ../ includes but I'll fix that in the next patch. R=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/746023002
69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
/*
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Copyright (C) 2005 Apple Inc. All rights reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "sky/engine/config.h"
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#include "sky/engine/wtf/DataLog.h"
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#include "sky/engine/wtf/HashTable.h"
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namespace WTF {
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#if DUMP_HASHTABLE_STATS
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int HashTableStats::numAccesses;
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int HashTableStats::numCollisions;
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int HashTableStats::collisionGraph[4096];
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int HashTableStats::maxCollisions;
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int HashTableStats::numRehashes;
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int HashTableStats::numRemoves;
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int HashTableStats::numReinserts;
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static Mutex& hashTableStatsMutex()
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{
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AtomicallyInitializedStatic(Mutex&, mutex = *new Mutex);
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return mutex;
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}
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void HashTableStats::recordCollisionAtCount(int count)
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{
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MutexLocker lock(hashTableStatsMutex());
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if (count > maxCollisions)
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maxCollisions = count;
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numCollisions++;
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collisionGraph[count]++;
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}
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void HashTableStats::dumpStats()
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{
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MutexLocker lock(hashTableStatsMutex());
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dataLogF("\nWTF::HashTable statistics\n\n");
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dataLogF("%d accesses\n", numAccesses);
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dataLogF("%d total collisions, average %.2f probes per access\n", numCollisions, 1.0 * (numAccesses + numCollisions) / numAccesses);
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dataLogF("longest collision chain: %d\n", maxCollisions);
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for (int i = 1; i <= maxCollisions; i++) {
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dataLogF(" %d lookups with exactly %d collisions (%.2f%% , %.2f%% with this many or more)\n", collisionGraph[i], i, 100.0 * (collisionGraph[i] - collisionGraph[i+1]) / numAccesses, 100.0 * collisionGraph[i] / numAccesses);
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}
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dataLogF("%d rehashes\n", numRehashes);
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dataLogF("%d reinserts\n", numReinserts);
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}
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#endif
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} // namespace WTF
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