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Diffstat (limited to 'android/database/SQLiteDatabaseIoPerfTest.java')
| -rw-r--r-- | android/database/SQLiteDatabaseIoPerfTest.java | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/android/database/SQLiteDatabaseIoPerfTest.java b/android/database/SQLiteDatabaseIoPerfTest.java deleted file mode 100644 index 7c5316d2..00000000 --- a/android/database/SQLiteDatabaseIoPerfTest.java +++ /dev/null @@ -1,176 +0,0 @@ -/* - * Copyright (C) 2017 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 - */ - -package android.database; - -import android.app.Activity; -import android.content.ContentValues; -import android.content.Context; -import android.database.sqlite.SQLiteDatabase; -import android.os.Bundle; -import android.support.test.InstrumentationRegistry; -import android.support.test.filters.LargeTest; -import android.support.test.runner.AndroidJUnit4; -import android.util.ArrayMap; -import android.util.Log; - -import com.android.internal.util.Preconditions; - -import org.junit.After; -import org.junit.Before; -import org.junit.Test; -import org.junit.runner.RunWith; - -import java.io.File; -import java.io.IOException; -import java.nio.file.Files; -import java.util.List; -import java.util.Map; - -import static org.junit.Assert.assertEquals; - -/** - * Performance tests for measuring amount of data written during typical DB operations - * - * <p>To run: bit CorePerfTests:android.database.SQLiteDatabaseIoPerfTest - */ -@RunWith(AndroidJUnit4.class) -@LargeTest -public class SQLiteDatabaseIoPerfTest { - private static final String TAG = "SQLiteDatabaseIoPerfTest"; - private static final String DB_NAME = "db_io_perftest"; - private static final int DEFAULT_DATASET_SIZE = 500; - - private Long mWriteBytes; - - private SQLiteDatabase mDatabase; - private Context mContext; - - @Before - public void setUp() { - mContext = InstrumentationRegistry.getTargetContext(); - mContext.deleteDatabase(DB_NAME); - mDatabase = mContext.openOrCreateDatabase(DB_NAME, Context.MODE_PRIVATE, null); - mDatabase.execSQL("CREATE TABLE T1 " - + "(_ID INTEGER PRIMARY KEY, COL_A INTEGER, COL_B VARCHAR(100), COL_C REAL)"); - } - - @After - public void tearDown() { - mDatabase.close(); - mContext.deleteDatabase(DB_NAME); - } - - @Test - public void testDatabaseModifications() { - startMeasuringWrites(); - ContentValues cv = new ContentValues(); - String[] whereArg = new String[1]; - for (int i = 0; i < DEFAULT_DATASET_SIZE; i++) { - cv.put("_ID", i); - cv.put("COL_A", i); - cv.put("COL_B", "NewValue"); - cv.put("COL_C", 1.0); - assertEquals(i, mDatabase.insert("T1", null, cv)); - } - cv = new ContentValues(); - for (int i = 0; i < DEFAULT_DATASET_SIZE; i++) { - cv.put("COL_B", "UpdatedValue"); - cv.put("COL_C", 1.1); - whereArg[0] = String.valueOf(i); - assertEquals(1, mDatabase.update("T1", cv, "_ID=?", whereArg)); - } - for (int i = 0; i < DEFAULT_DATASET_SIZE; i++) { - whereArg[0] = String.valueOf(i); - assertEquals(1, mDatabase.delete("T1", "_ID=?", whereArg)); - } - // Make sure all changes are written to disk - mDatabase.close(); - long bytes = endMeasuringWrites(); - sendResults("testDatabaseModifications" , bytes); - } - - @Test - public void testInsertsWithTransactions() { - startMeasuringWrites(); - final int txSize = 10; - ContentValues cv = new ContentValues(); - for (int i = 0; i < DEFAULT_DATASET_SIZE * 5; i++) { - if (i % txSize == 0) { - mDatabase.beginTransaction(); - } - if (i % txSize == txSize-1) { - mDatabase.setTransactionSuccessful(); - mDatabase.endTransaction(); - - } - cv.put("_ID", i); - cv.put("COL_A", i); - cv.put("COL_B", "NewValue"); - cv.put("COL_C", 1.0); - assertEquals(i, mDatabase.insert("T1", null, cv)); - } - // Make sure all changes are written to disk - mDatabase.close(); - long bytes = endMeasuringWrites(); - sendResults("testInsertsWithTransactions" , bytes); - } - - private void startMeasuringWrites() { - Preconditions.checkState(mWriteBytes == null, "Measurement already started"); - mWriteBytes = getIoStats().get("write_bytes"); - } - - private long endMeasuringWrites() { - Preconditions.checkState(mWriteBytes != null, "Measurement wasn't started"); - Long newWriteBytes = getIoStats().get("write_bytes"); - return newWriteBytes - mWriteBytes; - } - - private void sendResults(String testName, long writeBytes) { - Log.i(TAG, testName + " write_bytes: " + writeBytes); - Bundle status = new Bundle(); - status.putLong("write_bytes", writeBytes); - InstrumentationRegistry.getInstrumentation().sendStatus(Activity.RESULT_OK, status); - } - - private static Map<String, Long> getIoStats() { - String ioStat = "/proc/self/io"; - Map<String, Long> results = new ArrayMap<>(); - try { - List<String> lines = Files.readAllLines(new File(ioStat).toPath()); - for (String line : lines) { - line = line.trim(); - String[] split = line.split(":"); - if (split.length == 2) { - try { - String key = split[0].trim(); - Long value = Long.valueOf(split[1].trim()); - results.put(key, value); - } catch (NumberFormatException e) { - Log.e(TAG, "Cannot parse number from " + line); - } - } else if (line.isEmpty()) { - Log.e(TAG, "Cannot parse line " + line); - } - } - } catch (IOException e) { - Log.e(TAG, "Can't read: " + ioStat, e); - } - return results; - } - -} |