public static void testOneRandomPathConsume(String dirPath) {
for (int i = 0; i < 31366; i++) {
String str = "" + i;
long start = System.currentTimeMillis();
String tmpDir = MathUtils.hashKeyForDisk(str);
String firstDir = tmpDir.substring(0, 2);
File file = new File(dirPath + "/" + firstDir);
if (file.exists()) {
long spend = System.currentTimeMillis() - start;
Log.v("spend", "find file i " + i + " spend " + spend);
} else {
long spend = System.currentTimeMillis() - start;
Log.v("cyz", "spend not " + spend + " " + i);
break;
}
}
Log.v("cyz", "finish test OneRandomPathConsume");
}
/**
* ********************************************************************* 一级散列
*
* @param dirPath
*/
public static void testOneRandomPathCreateFile(String dirPath) {
for (int i = 0; i < 31366; i++) {
String str = "" + i;
String tmpDir = MathUtils.hashKeyForDisk(str);
String firstDir = tmpDir.substring(0, 2);
File file = new File(dirPath + "/" + firstDir);
try {
if (!file.exists()) {
file.mkdirs();
}
File file1 = new File(file.getPath() + "/" + str);
file1.createNewFile();
} catch (IOException e) {
e.printStackTrace();
Log.v("cyz", "e = " + e.getMessage() + " filename " + str + " i " + i);
}
}
Log.v("cyz", "create 31366 files");
}