public Benchmark()
{
// get dump
string memoryDumpPath = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location) + @"\memorydump.dat";
if (!File.Exists(memoryDumpPath))
{
memoryDumpPath = Path.Combine(Path.Combine(Path.GetDirectoryName(Assembly.GetEntryAssembly().Location), "..", "..", ".."), "Memorydump") + @"\memorydump.dat";
if (!File.Exists(memoryDumpPath))
{
throw new FileNotFoundException("Memory dump not found: " + memoryDumpPath);
}
}
// read bytes and check hash
byte[] moduleMemory = File.ReadAllBytes(memoryDumpPath);
using (SHA1Managed sha1Managed = new SHA1Managed())
{
byte[] hash = sha1Managed.ComputeHash(moduleMemory);
string sha1 = string.Concat(hash.Select(b => b.ToString("x2")));
if (!sha1.Equals(TARGET_HASH, StringComparison.OrdinalIgnoreCase))
{
throw new BadImageFormatException("Memory dump corrupted");
}
}
this.CbMemory = moduleMemory;
// generate byte patterns
this.MemoryPatterns = new List <MemoryPattern>();
foreach (KeyValuePair <long, string> entry in TARGET_PATTERNS)
{
MemoryPattern memoryPattern = new MemoryPattern(entry.Key, entry.Value);
this.MemoryPatterns.Add(memoryPattern);
}
}
/// <summary>
/// Compares C# patterscan implementations.
/// Uses a full memory dump from blender 2.64a 64bit as a target.
/// </summary>
/// <remarks>https://download.blender.org/release/Blender2.64/blender-2.64a-release-windows64.zip</remarks>
internal static void Init(string[] args)
{
Console.Title = "Patternscan Benchmark";
Console.ForegroundColor = ConsoleColor.DarkYellow;
Console.WriteLine(@" ____ __ __ ");
Console.WriteLine(@" / __ \____ _/ /_/ /____ _________ ");
Console.WriteLine(@" / /_/ / __ `/ __/ __/ _ \/ ___/ __ \");
Console.WriteLine(@" / ____/ /_/ / /_/ /_/ __/ / / / / /");
Console.WriteLine(@"/_/ \__,_/\__/\__/\___/_/ /_/ /_/ ");
Console.WriteLine(@" ");
Console.WriteLine(" scan benchmark");
Console.WriteLine(" - C# version -");
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Gray;
Console.Write("To start press ENTER...");
Console.ReadLine();
Console.WriteLine("");
if (IntPtr.Size != 8)
{
throw new PlatformNotSupportedException("Supports x64 only");
}
// get dump
string memoryDumpPath = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location) + @"\memorydump.dat";
if (!File.Exists(memoryDumpPath))
{
memoryDumpPath = Path.Combine(Path.Combine(Path.GetDirectoryName(Assembly.GetEntryAssembly().Location), "..", "..", ".."), "Memorydump") + @"\memorydump.dat";
if (!File.Exists(memoryDumpPath))
{
throw new FileNotFoundException("Memory dump not found");
}
}
// read bytes and check hash
byte[] moduleMemory = File.ReadAllBytes(memoryDumpPath);
using (SHA1Managed sha1Managed = new SHA1Managed())
{
byte[] hash = sha1Managed.ComputeHash(moduleMemory);
string sha1 = string.Concat(hash.Select(b => b.ToString("x2")));
if (!sha1.Equals(TARGET_HASH, StringComparison.OrdinalIgnoreCase))
{
throw new BadImageFormatException("Memory dump corrupted");
}
}
// generate byte patterns and masks from string patterns
List <MemoryPattern> memoryPatterns = new List <MemoryPattern>();
foreach (KeyValuePair <long, string> entry in TARGET_PATTERNS)
{
MemoryPattern memoryPattern = new MemoryPattern(entry.Key, entry.Value);
memoryPatterns.Add(memoryPattern);
}
// bench all algorithms
Stopwatch stopWatch = new Stopwatch();
foreach (KeyValuePair <string, PatternScanAlgorithm> patternScanAlgorithm in PATTERN_SCAN_ALGORITHMS)
{
PrintInfo(patternScanAlgorithm.Key + " - by " + patternScanAlgorithm.Value.Creator);
bool algoSuccess = true;
stopWatch.Restart();
string message = patternScanAlgorithm.Value.Init(in moduleMemory);
foreach (MemoryPattern memoryPattern in memoryPatterns)
{
if (patternScanAlgorithm.Value.FindPattern(in moduleMemory, in memoryPattern.CbPattern, memoryPattern.SzMask) == memoryPattern.ExpectedAddress)
{
continue;
}
algoSuccess = false;
break;
}
stopWatch.Stop();
if (!algoSuccess)
{
PrintError("failed..." + (message != "" ? " (" + message + ")" : ""), 1);
}
else
{
PrintResult(stopWatch.ElapsedMilliseconds + "ms" + (message != "" ? " (" + message + ")" : ""), 1);
}
}
Console.WriteLine("");
Console.WriteLine("finished...");
Console.ReadLine();
}
/// <summary>
/// Compares C# patterscan implementations.
/// Uses a memory dump from main module of blender 2.64a 64bit as a target.
/// </summary>
/// <remarks>https://download.blender.org/release/Blender2.64/blender-2.64a-release-windows64.zip</remarks>
internal static void Main(string[] args)
{
Console.Title = "Patternscan Benchmark";
Console.ForegroundColor = ConsoleColor.DarkYellow;
Console.WriteLine(@" ____ __ __ ");
Console.WriteLine(@" / __ \____ _/ /_/ /____ _________ ");
Console.WriteLine(@" / /_/ / __ `/ __/ __/ _ \/ ___/ __ \");
Console.WriteLine(@" / ____/ /_/ / /_/ /_/ __/ / / / / /");
Console.WriteLine(@"/_/ \__,_/\__/\__/\___/_/ /_/ /_/ ");
Console.WriteLine(@" ");
Console.WriteLine(" scan benchmark");
Console.WriteLine(" - C# version -");
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Gray;
PrintInfo(string.Format("{0} iterations | {1} patterns | {2} implementations", ITERATIONS, TARGET_PATTERNS.Count, PATTERN_SCAN_ALGORITHMS.Count));
Console.Write("To start press ENTER...");
Console.ReadLine();
Console.WriteLine("");
if (IntPtr.Size != 8)
{
throw new PlatformNotSupportedException("Supports x64 only");
}
// get dump
string memoryDumpPath = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location) + @"\memorydump.dat";
if (!File.Exists(memoryDumpPath))
{
memoryDumpPath = Path.Combine(Path.Combine(Path.GetDirectoryName(Assembly.GetEntryAssembly().Location), "..", "..", ".."), "Memorydump") + @"\memorydump.dat";
if (!File.Exists(memoryDumpPath))
{
throw new FileNotFoundException("Memory dump not found");
}
}
// read bytes and check hash
byte[] moduleMemory = File.ReadAllBytes(memoryDumpPath);
using (SHA1Managed sha1Managed = new SHA1Managed())
{
byte[] hash = sha1Managed.ComputeHash(moduleMemory);
string sha1 = string.Concat(hash.Select(b => b.ToString("x2")));
if (!sha1.Equals(TARGET_HASH, StringComparison.OrdinalIgnoreCase))
{
throw new BadImageFormatException("Memory dump corrupted");
}
}
GC.KeepAlive(moduleMemory);
// generate byte patterns and masks from string patterns
List <MemoryPattern> memoryPatterns = new List <MemoryPattern>();
foreach (KeyValuePair <long, string> entry in TARGET_PATTERNS)
{
MemoryPattern memoryPattern = new MemoryPattern(entry.Key, entry.Value);
memoryPatterns.Add(memoryPattern);
}
GC.KeepAlive(memoryPatterns);
GC.KeepAlive(PATTERN_SCAN_ALGORITHMS);
// bench all algorithms
foreach (KeyValuePair <string, PatternScanAlgorithm> patternScanAlgorithm in PATTERN_SCAN_ALGORITHMS)
{
PrintInfo(patternScanAlgorithm.Key + " - by " + patternScanAlgorithm.Value.Creator);
Task <BenchmarkResult> benchMark = RunBenchmark(patternScanAlgorithm, memoryPatterns, moduleMemory);
if (!benchMark.Wait(25000))
{
PrintError("timeout...");
}
else if (!benchMark.Result.success)
{
PrintError("failed..." + (benchMark.Result.message != "" ? " (" + benchMark.Result.message + ")" : ""));
}
else
{
PrintResults(benchMark.Result.timings, benchMark.Result.message);
}
}
Console.WriteLine("");
Console.WriteLine("finished...");
Console.ReadLine();
}
