【android studio】测试不同buf下flash的读写性能2

把之前测试performance的写完，和androbench测出来的有些差距，有一些小问题，以后有时间再补上。暂时不搞这个了，接下来专心研究文件系统。

package com.example.singleimport android.content.Intent
import android.os.*
import android.view.View
import android.widget.Button
import android.widget.EditText
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity
import java.io.*
import java.nio.ByteBuffer
import java.nio.channels.FileChannel
import java.util.*class FlashPerformanceActivity : AppCompatActivity() {var bundle2: Bundle? = nullvar btn_perfomance: Button? = nullvar btn_return: Button? = nullvar edit: EditText? = nullvar btn_present: TextView? = nullval myhandle = Handler()private var path: String? = nullprivate var mFileWriter: FileWriter? = nullprivate val LENGTH:Long = 1024*1024*10;private var TestResult = ""override fun onCreate(savedInstanceState: Bundle?) {super.onCreate(savedInstanceState)setContentView(R.layout.flash_performance)edit = findViewById(R.id.editText)btn_perfomance = findViewById(R.id.buttonperformance)btn_return = findViewById(R.id.returnflash)btn_present = findViewById(R.id.present)bundle2 = this.intent.extrasbtn_perfomance!!.setOnClickListener(buttonListener())btn_return!!.setOnClickListener(buttonListener())}var handler = object : Handler(Looper.getMainLooper()) {override fun handleMessage(msg: Message) {super.handleMessage(msg)if (msg.arg1 == 2) {TestResult += """${msg.obj as String}""".trimIndent()btn_present?.setText(TestResult)}}}internal inner class buttonListener : View.OnClickListener {override fun onClick(v: View) {when (v.id) {R.id.buttonperformance -> {myhandle.post(UpdateThread);}R.id.returnflash -> {val intent2 = Intent()intent2.setClass(this@FlashPerformanceActivity, FlashRwtestActivity::class.java)startActivity(intent2)}else -> {}}}}var UpdateThread: Runnable = object : Runnable {override fun run() {var iBegin: Long = 0var iEnd: Long = 0var iTime = 0var iRBegin: Long = 0var iREnd: Long = 0var iRTime = 0var inTime = 0var start:Long=0var end:Long=0val filenum = 10path = getExternalFilesDir("")!!.absolutePathval buf: Int = edit!!.getText().toString().toInt()try {for (i in 0 until filenum) {val file = File(path + File.separator + "data.txt")val file1 = File(path + File.separator + "data1.txt")mFileWriter = FileWriter(file)val bufWtr = BufferedWriter(mFileWriter, 8 * 1024)start = System.currentTimeMillis()for (count in 0 until LENGTH) {bufWtr!!.write(49)}end = System.currentTimeMillis()inTime += (end - start).toInt()val fileInputStream = FileInputStream(path + File.separator.toString() + "data.txt")val fileOutputStream = FileOutputStream(path + File.separator.toString() + "data1.txt")val inChannel = fileInputStream.channelval outChannel = fileOutputStream.channelval byteBuffer = ByteBuffer.allocateDirect(buf * 1024 * 1024)while (true) {iRBegin = System.currentTimeMillis()val eof = inChannel.read(byteBuffer)if (eof == -1) breakiREnd = System.currentTimeMillis()iRTime += (iREnd - iRBegin).toInt()byteBuffer.flip()iBegin = System.currentTimeMillis()outChannel.write(byteBuffer)iEnd = System.currentTimeMillis()iTime += (iEnd - iBegin).toInt()byteBuffer.clear()}inChannel.close()outChannel.close()file.delete()file1.delete()}SendMyMessage(handler, 2, "Write  file with write buffer size 8k  Time= "+ Integer.toString(inTime) + "ms  Speed=" + LENGTH*filenum / iTime * 1000 / 1024 + "KB/s  " + (LENGTH*filenum   / inTime * 1000 / 1024 / 1024) + "." + (LENGTH*filenum   / inTime * 1000 / 1024) % 1024 + "MB/s");SendMyMessage(handler, 2, "Write  file with write buffer size " +buf +"M  Time= "+ Integer.toString(iTime) + "ms  Speed=" + LENGTH*filenum  / iTime * 1000 / 1024 + "KB/s  " + (LENGTH *filenum  / iTime * 1000 / 1024 / 1024) + "." + (LENGTH *filenum  / iTime * 1000 / 1024) % 1024 + "MB/s");SendMyMessage(handler, 2, "Read  file with write buffer size " + buf +"M Time= "+ Integer.toString(iRTime) + "ms  Speed=" + LENGTH *filenum / iRTime * 1000 / 1024 + "KB/s  " + (LENGTH *filenum / iRTime * 1000 / 1024 / 1024) + "." + (LENGTH*filenum  / iRTime * 1000 / 1024) % 1024 + "MB/s");} catch (e: IOException) {e.printStackTrace()}Thread.sleep(1000);}fun SendMyMessage(msghandler: Handler, type: Int, msg: String?) {val MSG = msghandler.obtainMessage()MSG.obj = msgMSG.arg1 = typemsghandler.sendMessage(MSG)}}}

下面是另一种方法，比上面一种速度慢。

package com.example.rwpimport android.content.DialogInterface
import android.os.*
import android.view.View
import android.widget.Button
import android.widget.EditText
import android.widget.TextView
import androidx.appcompat.app.AlertDialog
import androidx.appcompat.app.AppCompatActivity
import java.io.*
import java.text.SimpleDateFormat
import java.util.*class MainActivity : AppCompatActivity() {var bundle2: Bundle? = nullvar btn_cycle: Button? = nullvar edit: EditText? = nullvar btn_present: TextView? = nullval myhandle = Handler()private var path: String? = nullprivate var mFileWriter: FileWriter? = nullprivate var mFileReader: FileReader? = nullprivate val LENGTH = 1024*1024;var mWriterBuffer: CharArray? = nullvar mReaderBuffer: CharArray? = nullprivate var str: String? = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"private var TestResult = ""override fun onCreate(savedInstanceState: Bundle?) {super.onCreate(savedInstanceState)setContentView(R.layout.activity_main)edit = findViewById(R.id.editText)btn_cycle = findViewById(R.id.buttoncycle)btn_present = findViewById(R.id.present)bundle2 = this.intent.extrasbtn_cycle!!.setOnClickListener(buttonListener())}var handler = object : Handler(Looper.getMainLooper()) {override fun handleMessage(msg: Message) {super.handleMessage(msg)if (msg.arg1 == 2) {TestResult += """${msg.obj as String}""".trimIndent()btn_present?.setText(TestResult)}}}internal inner class buttonListener : View.OnClickListener {override fun onClick(v: View) {when (v.id) {R.id.buttoncycle -> {myhandle.post(UpdateThread);}else -> {}}}}var UpdateThread: Runnable = object : Runnable {override fun run() {var iBegin: Long = 0var iEnd: Long = 0var iTime = 0var iRBegin: Long = 0var iREnd: Long = 0var iRTime = 0val random= Random()val filenum = 100var bReturn = true//  val date = Date()// val timeTemp: String = SimpleDateFormat("yyyyMMdd_HHmmss").format(date.time)path = getExternalFilesDir("")!!.absolutePath//val file = File(path + File.separator + timeTemp + ".txt")mWriterBuffer = CharArray(LENGTH)mReaderBuffer = CharArray(LENGTH + 10)val buf: Int = edit!!.getText().toString().toInt()SendMyMessage(handler, 2, "Create temp 1M file.")try {for (i in 0 until LENGTH) {val number: Int = random.nextInt(62)mWriterBuffer!![i] = str!![number]}SendMyMessage(handler, 2, "Begin writing.")for (i in 0 until filenum) {val file = File(path + File.separator + i + ".txt")mFileWriter = FileWriter(file)iBegin = System.currentTimeMillis()val bufWtr = BufferedWriter(mFileWriter, buf * 1024)bufWtr!!.write(mWriterBuffer)bufWtr!!.close()iEnd = System.currentTimeMillis()iTime += (iEnd - iBegin).toInt()}SendMyMessage(handler, 2, "Write files with write buffer size " + buf + "K  Time= "+ Integer.toString(iTime) + "ms  Speed=" + LENGTH *filenum/ iTime * 1000 / 1024 + "KB/s " + (LENGTH *filenum/ iTime * 1000 / 1024 / 1024) + "." + (LENGTH *filenum/ iTime * 1000 / 1024) % 1024 + "MB/s");SendMyMessage(handler, 2, "Begin reading.")for (i in 0 until filenum) {val file = File(path + File.separator + i + ".txt")iRBegin = System.currentTimeMillis()mFileReader = FileReader(file)val bufRdr = BufferedReader(mFileReader, buf * 1024)val iRead = bufRdr!!.read(mReaderBuffer)bufRdr!!.close()iREnd = System.currentTimeMillis()iRTime += (iREnd - iRBegin).toInt()if (iRead != LENGTH) {bReturn = false}var bSame = truefor (i in 0 until LENGTH) {if (mReaderBuffer!![i] != mWriterBuffer!![i]) {bSame = false}}if (!bSame) {bReturn = false}if (!bReturn) {SendMyMessage(handler, 3, "Fail")val alertdialogbuilder = AlertDialog.Builder(this@MainActivity)alertdialogbuilder.setMessage("WARNING!!!!")alertdialogbuilder.setPositiveButton("确定", click1)alertdialogbuilder.setNegativeButton("取消", click2)val alertdialog1: AlertDialog = alertdialogbuilder.create()alertdialog1.show()}}SendMyMessage(handler, 2, "Read  files with write buffer size " + buf + "K  Time= "+ Integer.toString(iRTime) + "ms  Speed=" + LENGTH*filenum / iRTime * 1000 / 1024 + "KB/s  " + (LENGTH*filenum / iRTime * 1000 / 1024 / 1024) + "." + (LENGTH*filenum / iRTime * 1000 / 1024) % 1024 + "MB/s");} catch (e: IOException) {e.printStackTrace()}Thread.sleep(1000);}fun SendMyMessage(msghandler: Handler, type: Int, msg: String?) {val MSG = msghandler.obtainMessage()MSG.obj = msgMSG.arg1 = typemsghandler.sendMessage(MSG)}}private val click1 = DialogInterface.OnClickListener { arg0, arg1 -> Process.killProcess(Process.myPid()) }private val click2 = DialogInterface.OnClickListener { arg0, arg1 -> arg0.cancel() }}

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【android studio】测试不同buf下flash的读写性能2

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