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/* Copyright 2016 The Tor Project
* See LICENSE for licensing information */
package org.torproject.descriptor;
import java.io.File;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import java.util.SortedMap;
public class MeasurePerformance {
/* Check if all necessary files are available and then measure
* performance of some more or less common use cases. */
public static void main(String[] args) {
if (!filesAvailable()) {
return;
}
/*measureListOutdatedRelays(null);
pause();*/
measureAverageAdvertisedBandwidth(new File(resDir, resPaths[0]));
pause();
measureAverageAdvertisedBandwidth(new File(resDir, resPaths[1]));
pause();
measureAverageAdvertisedBandwidth(new File(resDir, resPaths[2]));
pause();
/*measureFractionRelaysExit80ServerDescriptors(null);
pause();
measureSumOfWrittenAndReadBytes(null);
pause();*/
measureCountriesV3Requests(new File(resDir, resPaths[3]));
pause();
measureCountriesV3Requests(new File(resDir, resPaths[4]));
pause();
measureAverageRelaysExit(new File(resDir, resPaths[5]));
pause();
measureAverageRelaysExit(new File(resDir, resPaths[6]));
pause();
measureAverageRelaysExit(new File(resDir, resPaths[7]));
/*pause();
measureVotesByBandwidthAuthorities(null);
pause();
measureExtendedFamilies(null);
pause();*/
measureFractionRelaysExit80Microdescriptors(
new File(resDir, resPaths[8]));
measureFractionRelaysExit80Microdescriptors(
new File(resDir, resPaths[9]));
}
private static File resDir = new File("res");
private static String[] resPaths = new String[] {
"archive/relay-descriptors/server-descriptors/"
+ "server-descriptors-2015-11.tar.xz",
"archive/relay-descriptors/server-descriptors/"
+ "server-descriptors-2015-11.tar",
"archive/relay-descriptors/server-descriptors/"
+ "server-descriptors-2015-11",
"archive/relay-descriptors/extra-infos/extra-infos-2015-11.tar.xz",
"archive/relay-descriptors/extra-infos/extra-infos-2015-11.tar",
"archive/relay-descriptors/consensuses/consensuses-2015-11.tar.xz",
"archive/relay-descriptors/consensuses/consensuses-2015-11.tar",
"archive/relay-descriptors/consensuses/consensuses-2015-11",
"archive/relay-descriptors/microdescs/"
+ "microdescs-2015-11-micro.tar.xz",
"archive/relay-descriptors/microdescs/microdescs-2015-11-micro.tar"
};
private static boolean filesAvailable() {
if (!resDir.exists() || !resDir.isDirectory()) {
return false;
}
for (String resPath : resPaths) {
if (!(new File(resDir, resPath).exists())) {
System.err.println(resPath);
return false;
}
}
return true;
}
private static void pause() {
try {
Thread.sleep(15L * 1000L);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
private static void measureListOutdatedRelays(File tarballFile) {
}
private static void measureAverageAdvertisedBandwidth(
File tarballFileOrDirectory) {
System.out.println("Starting measureAverageAdvertisedBandwidth");
long startedMillis = System.currentTimeMillis();
long sumAdvertisedBandwidth = 0, countedServerDescriptors = 0;
DescriptorReader descriptorReader =
DescriptorSourceFactory.createDescriptorReader();
descriptorReader.addTarball(tarballFileOrDirectory);
descriptorReader.addDirectory(tarballFileOrDirectory);
Iterator<DescriptorFile> descriptorFiles =
descriptorReader.readDescriptors();
while (descriptorFiles.hasNext()) {
DescriptorFile descriptorFile = descriptorFiles.next();
for (Descriptor descriptor : descriptorFile.getDescriptors()) {
if (!(descriptor instanceof ServerDescriptor)) {
continue;
}
ServerDescriptor serverDescriptor = (ServerDescriptor) descriptor;
sumAdvertisedBandwidth += (long) Math.min(Math.min(
serverDescriptor.getBandwidthRate(),
serverDescriptor.getBandwidthBurst()),
serverDescriptor.getBandwidthObserved());
countedServerDescriptors++;
}
}
long endedMillis = System.currentTimeMillis();
System.out.println("Ending measureAverageAdvertisedBandwidth");
System.out.printf("Total time: %d millis%n",
endedMillis - startedMillis);
System.out.printf("Processed server descriptors: %d%n",
countedServerDescriptors);
System.out.printf("Average advertised bandwidth: %d%n",
sumAdvertisedBandwidth / countedServerDescriptors);
System.out.printf("Time per server descriptor: %.6f millis%n",
((double) (endedMillis - startedMillis))
/ ((double) countedServerDescriptors));
}
private static void measureFractionRelaysExit80ServerDescriptors(
File tarballFile) {
}
private static void measureSumOfWrittenAndReadBytes(File tarballFile) {
}
private static void measureCountriesV3Requests(File tarballFile) {
System.out.println("Starting measureCountriesV3Requests");
long startedMillis = System.currentTimeMillis();
Set<String> countries = new HashSet<>();
long countedExtraInfoDescriptors = 0;
DescriptorReader descriptorReader =
DescriptorSourceFactory.createDescriptorReader();
descriptorReader.addTarball(tarballFile);
Iterator<DescriptorFile> descriptorFiles =
descriptorReader.readDescriptors();
while (descriptorFiles.hasNext()) {
DescriptorFile descriptorFile = descriptorFiles.next();
for (Descriptor descriptor : descriptorFile.getDescriptors()) {
if (!(descriptor instanceof ExtraInfoDescriptor)) {
continue;
}
ExtraInfoDescriptor extraInfoDescriptor =
(ExtraInfoDescriptor) descriptor;
SortedMap<String, Integer> dirreqV3Reqs =
extraInfoDescriptor.getDirreqV3Reqs();
if (dirreqV3Reqs != null) {
countries.addAll(dirreqV3Reqs.keySet());
}
countedExtraInfoDescriptors++;
}
}
long endedMillis = System.currentTimeMillis();
System.out.println("Ending measureCountriesV3Requests");
System.out.printf("Total time: %d millis%n",
endedMillis - startedMillis);
System.out.printf("Processed extra-info descriptors: %d%n",
countedExtraInfoDescriptors);
System.out.printf("Number of countries: %d%n",
countries.size());
System.out.printf("Time per extra-info descriptor: %.6f millis%n",
((double) (endedMillis - startedMillis))
/ ((double) countedExtraInfoDescriptors));
}
private static void measureAverageRelaysExit(
File tarballFileOrDirectory) {
System.out.println("Starting measureAverageRelaysExit");
long startedMillis = System.currentTimeMillis();
long totalRelaysWithExitFlag = 0L, totalRelays = 0L,
countedConsensuses = 0L;
DescriptorReader descriptorReader =
DescriptorSourceFactory.createDescriptorReader();
descriptorReader.addTarball(tarballFileOrDirectory);
descriptorReader.addDirectory(tarballFileOrDirectory);
Iterator<DescriptorFile> descriptorFiles =
descriptorReader.readDescriptors();
while (descriptorFiles.hasNext()) {
DescriptorFile descriptorFile = descriptorFiles.next();
for (Descriptor descriptor : descriptorFile.getDescriptors()) {
if (!(descriptor instanceof RelayNetworkStatusConsensus)) {
continue;
}
RelayNetworkStatusConsensus consensus =
(RelayNetworkStatusConsensus) descriptor;
for (NetworkStatusEntry entry :
consensus.getStatusEntries().values()) {
if (entry.getFlags().contains("Exit")) {
totalRelaysWithExitFlag++;
}
totalRelays++;
}
countedConsensuses++;
}
}
long endedMillis = System.currentTimeMillis();
System.out.println("Ending measureAverageRelaysExit");
System.out.printf("Total time: %d millis%n",
endedMillis - startedMillis);
System.out.printf("Processed consensuses: %d%n", countedConsensuses);
System.out.printf("Total number of status entries: %d%n",
totalRelays);
System.out.printf("Total number of status entries with Exit flag: "
+ "%d%n", totalRelaysWithExitFlag);
System.out.printf("Average number of relays with Exit Flag: %.2f%n",
(double) totalRelaysWithExitFlag / (double) totalRelays);
System.out.printf("Time per consensus: %.6f millis%n",
((double) (endedMillis - startedMillis))
/ ((double) countedConsensuses));
}
private static void measureVotesByBandwidthAuthorities(
File tarballFile) {
}
private static void measureExtendedFamilies(File tarballFile) {
}
private static void measureFractionRelaysExit80Microdescriptors(
File tarballFile) {
System.out.println("Starting "
+ "measureFractionRelaysExit80Microdescriptors");
long startedMillis = System.currentTimeMillis();
long totalRelaysWithExitFlag = 0L, countedMicrodescriptors = 0L;
DescriptorReader descriptorReader =
DescriptorSourceFactory.createDescriptorReader();
descriptorReader.addTarball(tarballFile);
Iterator<DescriptorFile> descriptorFiles =
descriptorReader.readDescriptors();
while (descriptorFiles.hasNext()) {
DescriptorFile descriptorFile = descriptorFiles.next();
for (Descriptor descriptor : descriptorFile.getDescriptors()) {
if (!(descriptor instanceof Microdescriptor)) {
continue;
}
countedMicrodescriptors++;
Microdescriptor microdescriptor =
(Microdescriptor) descriptor;
String defaultPolicy = microdescriptor.getDefaultPolicy();
if (defaultPolicy == null) {
continue;
}
boolean accept = "accept".equals(
microdescriptor.getDefaultPolicy());
for (String ports : microdescriptor.getPortList().split(",")) {
if (ports.contains("-")) {
String[] parts = ports.split("-");
int from = Integer.parseInt(parts[0]);
int to = Integer.parseInt(parts[1]);
if (from <= 80 && to >= 80) {
if (accept) {
totalRelaysWithExitFlag++;
}
} else if (to > 80) {
if (!accept) {
totalRelaysWithExitFlag++;
}
break;
}
} else if ("80".equals(ports)) {
if (accept) {
totalRelaysWithExitFlag++;
}
break;
}
}
}
}
long endedMillis = System.currentTimeMillis();
System.out.println("Ending "
+ "measureFractionRelaysExit80Microdescriptors");
System.out.printf("Total time: %d millis%n",
endedMillis - startedMillis);
System.out.printf("Processed microdescriptors: %d%n",
countedMicrodescriptors);
System.out.printf("Total number of microdescriptors that exit to 80: "
+ "%d%n", totalRelaysWithExitFlag);
System.out.printf("Average number of relays that exit to 80: %.2f%n",
(double) totalRelaysWithExitFlag
/ (double) countedMicrodescriptors);
System.out.printf("Time per microdescriptor: %.6f millis%n",
((double) (endedMillis - startedMillis))
/ ((double) countedMicrodescriptors));
}
}
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