static void Test()
{
using (var dict = new PersistentDictionary("1.txt"))
{
string line;
while ((line = Console.ReadLine()) != null)
{
try
{
var tokens = line.Split();
switch (tokens[0].ToLower())
{
case "add":
dict.Add(tokens[1], Encoding.UTF8.GetBytes(tokens[2]));
break;
case "update":
dict[tokens[1]] = Encoding.UTF8.GetBytes(tokens[2]);
break;
case "remove":
dict.Remove(tokens[1]);
break;
case "dump":
{
foreach (var kv in dict.OrderBy(kv => kv.Key))
{
Console.WriteLine("\t{0}: {1}", kv.Key, Encoding.UTF8.GetString(kv.Value));
}
}
break;
default:
throw new NotSupportedException("Unsupport command");
}
Console.WriteLine("Done.");
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
}
}
static void Benchmark()
{
var payload = new byte[4 * 1024];
var dir = "temp";
if (!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
Utility.Timeit("File system", 1, () =>
{
var random = new Random();
for (var i = 0; i < 40000; ++i)
{
var path = string.Format("{0}/{1}.txt", dir, random.Next(1000));
switch (random.Next(3))
{
case 0:
File.WriteAllBytes(path, payload);
break;
case 1:
if (File.Exists(path))
{
File.Delete(path);
}
break;
case 2:
if (File.Exists(path))
{
File.ReadAllText(path);
}
break;
}
}
});
Utility.Timeit("PersistentDictionary", 1, () =>
{
var random = new Random();
using (var dict = new PersistentDictionary("1.txt"))
{
for (var i = 0; i < 40000; ++i)
{
var key = string.Format("{0}/{1}.txt", dir, random.Next(1000));
switch (random.Next(3))
{
case 0:
if (dict.Contains(key))
{
dict[key] = payload;
}
else
{
dict.Add(key, payload);
}
break;
case 1:
if (dict.Contains(key))
{
dict.Remove(key);
}
break;
case 2:
if (dict.Contains(key))
{
var v = dict[key];
}
break;
}
}
}
});
}