c8f71aa67e
Benchmarks on bullhead-userdebug show that there is a negligent performance impact when using sparse entries on a 30% loaded sparse type of 1000 resources. Benchmark Time CPU Iterations ----------------------------------------------------------------------------------- BM_SparseEntryGetResourceSparseLarge 255 ns 254 ns 2751408 BM_SparseEntryGetResourceNotSparseLarge 254 ns 254 ns 2756534 Bug: 27381711 Test: make libandroidfw_tests aapt2_tests Change-Id: I051ea22f2f6b2bc3696e446adc9e2a34be18009f
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "BenchmarkHelpers.h"
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#include "android-base/stringprintf.h"
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#include "androidfw/AssetManager.h"
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namespace android {
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void GetResourceBenchmarkOld(const std::vector<std::string>& paths, const ResTable_config* config,
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uint32_t resid, benchmark::State& state) {
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AssetManager assetmanager;
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for (const std::string& path : paths) {
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if (!assetmanager.addAssetPath(String8(path.c_str()), nullptr /* cookie */,
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false /* appAsLib */, false /* isSystemAssets */)) {
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state.SkipWithError(base::StringPrintf("Failed to load assets %s", path.c_str()).c_str());
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return;
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}
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}
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if (config != nullptr) {
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assetmanager.setConfiguration(*config);
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}
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const ResTable& table = assetmanager.getResources(true);
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Res_value value;
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ResTable_config selected_config;
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uint32_t flags;
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while (state.KeepRunning()) {
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table.getResource(resid, &value, false /*may_be_bag*/, 0u /*density*/, &flags,
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&selected_config);
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}
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}
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} // namespace android
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