| /* |
| * Copyright (C) 2012 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.h" |
| |
| #define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_ |
| #include <sys/_system_properties.h> |
| |
| #include <vector> |
| |
| extern void *__system_property_area__; |
| |
| #define TEST_NUM_PROPS \ |
| Arg(1)->Arg(4)->Arg(16)->Arg(64)->Arg(128)->Arg(247) |
| |
| struct LocalPropertyTestState { |
| LocalPropertyTestState(int nprops) : nprops(nprops) { |
| static const char prop_name_chars[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.-_"; |
| old_pa = __system_property_area__; |
| pa = malloc(PA_SIZE); |
| __system_property_area_init(pa); |
| |
| names = new char* [nprops]; |
| name_lens = new int[nprops]; |
| values = new char* [nprops]; |
| value_lens = new int[nprops]; |
| |
| srandom(nprops); |
| |
| for (int i = 0; i < nprops; i++) { |
| name_lens[i] = random() % PROP_NAME_MAX; |
| names[i] = new char[PROP_NAME_MAX + 1]; |
| for (int j = 0; j < name_lens[i]; j++) { |
| names[i][j] = prop_name_chars[random() % (sizeof(prop_name_chars) - 1)]; |
| } |
| names[i][name_lens[i]] = 0; |
| value_lens[i] = random() % PROP_VALUE_MAX; |
| values[i] = new char[PROP_VALUE_MAX]; |
| for (int j = 0; j < value_lens[i]; j++) { |
| values[i][j] = prop_name_chars[random() % (sizeof(prop_name_chars) - 1)]; |
| } |
| __system_property_add(names[i], name_lens[i], values[i], value_lens[i]); |
| } |
| } |
| |
| ~LocalPropertyTestState() { |
| __system_property_area__ = old_pa; |
| for (int i = 0; i < nprops; i++) { |
| delete names[i]; |
| delete values[i]; |
| } |
| delete names; |
| delete name_lens; |
| delete values; |
| delete value_lens; |
| free(pa); |
| } |
| public: |
| const int nprops; |
| char **names; |
| int *name_lens; |
| char **values; |
| int *value_lens; |
| |
| private: |
| void *pa; |
| void *old_pa; |
| }; |
| |
| static void BM_property_get(int iters, int nprops) |
| { |
| StopBenchmarkTiming(); |
| |
| LocalPropertyTestState pa(nprops); |
| char value[PROP_VALUE_MAX]; |
| |
| StartBenchmarkTiming(); |
| |
| for (int i = 0; i < iters; i++) { |
| for (int j = 0; j < nprops; j++) { |
| __system_property_get(pa.names[j], value); |
| } |
| } |
| StopBenchmarkTiming(); |
| } |
| BENCHMARK(BM_property_get)->TEST_NUM_PROPS; |
| |
| static void BM_property_find(int iters, int nprops) |
| { |
| StopBenchmarkTiming(); |
| |
| LocalPropertyTestState pa(nprops); |
| |
| StartBenchmarkTiming(); |
| |
| for (int i = 0; i < iters; i++) { |
| for (int j = 0; j < nprops; j++) { |
| __system_property_find(pa.names[j]); |
| } |
| } |
| StopBenchmarkTiming(); |
| } |
| BENCHMARK(BM_property_find)->TEST_NUM_PROPS; |