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Commit 8c1b8368 authored by Treehugger Robot's avatar Treehugger Robot Committed by Automerger Merge Worker
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Merge "Add benchmarks for LocaleDataLookup" into main am: 533fa597 

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3471369



Change-Id: I976238510c74a9df2ef9f4076ea2371d9f26fd26
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents 1ffeb289 533fa597

libs/androidfw/Android.bp

+1 −0
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@@ -287,6 +287,7 @@ cc_benchmark { 
        "tests/AttributeResolution_bench.cpp",

        "tests/AttributeResolution_bench.cpp",

        "tests/CursorWindow_bench.cpp",

        "tests/CursorWindow_bench.cpp",

        "tests/Generic_bench.cpp",

        "tests/Generic_bench.cpp",

        "tests/LocaleDataLookup_bench.cpp",

        "tests/SparseEntry_bench.cpp",

        "tests/SparseEntry_bench.cpp",

        "tests/Theme_bench.cpp",

        "tests/Theme_bench.cpp",

    ],

    ],

libs/androidfw/LocaleDataLookup.cpp

+7 −0
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@@ -7518,6 +7518,13 @@ const char* lookupLikelyScript(uint32_t packed_lang_region) { 
     }

     }

}

}




















/*














 * TODO: Consider turning the below switch statement into binary search














 *      to save the disk space when the table is larger in the future.














 *      Disassembled code shows that the jump table emitted by clang can be














 *      4x larger than the data in disk size, but it depends on the optimization option.














 *      However, a switch statement will benefit from the future of compiler improvement.














 */











bool isLocaleRepresentative(uint32_t language_and_region, const char* script) {







bool isLocaleRepresentative(uint32_t language_and_region, const char* script) {











    const uint64_t packed_locale =







    const uint64_t packed_locale =











            ((static_cast<uint64_t>(language_and_region)) << 32u) |







            ((static_cast<uint64_t>(language_and_region)) << 32u) |

































libs/androidfw/tests/LocaleDataLookup_bench.cpp
0 → 100644



+57
−0




























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/*














 * Copyright (C) 2025 The Android Open Source Project














 *














 * Licensed under the Apache License, Version 2.0 (the "License");














 * you may not use this file except in compliance with the License.














 * You may obtain a copy of the License at














 *














 *      http://www.apache.org/licenses/LICENSE-2.0














 *














 * Unless required by applicable law or agreed to in writing, software














 * distributed under the License is distributed on an "AS IS" BASIS,














 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.














 * See the License for the specific language governing permissions and














 * limitations under the License.














 */





























#include "benchmark/benchmark.h"





























#include "androidfw/LocaleDataLookup.h"





























namespace android {





























static void BM_LocaleDataLookupIsLocaleRepresentative(benchmark::State& state) {














  for (auto&& _ : state) {














    isLocaleRepresentative(packLocale("en", "US"), "Latn");














    isLocaleRepresentative(packLocale("es", "ES"), "Latn");














    isLocaleRepresentative(packLocale("zh", "CN"), "Hans");














    isLocaleRepresentative(packLocale("pt", "BR"), "Latn");














    isLocaleRepresentative(packLocale("ar", "EG"), "Arab");














    isLocaleRepresentative(packLocale("hi", "IN"), "Deva");














    isLocaleRepresentative(packLocale("jp", "JP"), "Jpan");














  }














}














BENCHMARK(BM_LocaleDataLookupIsLocaleRepresentative);





























static void BM_LocaleDataLookupLikelyScript(benchmark::State& state) {














  for (auto&& _ : state) {














    lookupLikelyScript(packLocale("en", ""));














    lookupLikelyScript(packLocale("es", ""));














    lookupLikelyScript(packLocale("zh", ""));














    lookupLikelyScript(packLocale("pt", ""));














    lookupLikelyScript(packLocale("ar", ""));














    lookupLikelyScript(packLocale("hi", ""));














    lookupLikelyScript(packLocale("jp", ""));














    lookupLikelyScript(packLocale("en", "US"));














    lookupLikelyScript(packLocale("es", "ES"));














    lookupLikelyScript(packLocale("zh", "CN"));














    lookupLikelyScript(packLocale("pt", "BR"));














    lookupLikelyScript(packLocale("ar", "EG"));














    lookupLikelyScript(packLocale("hi", "IN"));














    lookupLikelyScript(packLocale("jp", "JP"));














  }














}














BENCHMARK(BM_LocaleDataLookupLikelyScript);












































}  // namespace android
























tools/localedata/extract_icu_data.py



+8
−1




























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@@ -180,7 +180,14 @@ def pack_script_to_uint32(script):





























def dump_representative_locales(representative_locales):







def dump_representative_locales(representative_locales):











    """Dump the set of representative locales."""







    """Dump the set of representative locales."""











    print()







    print('''














/*














 * TODO: Consider turning the below switch statement into binary search














 *      to save the disk space when the table is larger in the future.














 *      Disassembled code shows that the jump table emitted by clang can be














 *      4x larger than the data in disk size, but it depends on the optimization option.














 *      However, a switch statement will benefit from the future of compiler improvement.














 */''')











    print('bool isLocaleRepresentative(uint32_t language_and_region, const char* script) {')







    print('bool isLocaleRepresentative(uint32_t language_and_region, const char* script) {')











    print('    const uint64_t packed_locale =')







    print('    const uint64_t packed_locale =')











    print('            ((static_cast<uint64_t>(language_and_region)) << 32u) |')







    print('            ((static_cast<uint64_t>(language_and_region)) << 32u) |')