public static void Run()
{
Console.WriteLine("Now generating sorted items ...");
int nNewItems = 100000;
int nOldItems = 100000;
var rnd = new Random();
var sortedItems = new SortedDictionary <double, string>();
int newItem = 0;
for (int i = 1; i <= nNewItems; i++)
{
do
{
newItem = rnd.Next(0, Int32.MaxValue);
}while (sortedItems.ContainsKey(newItem));
sortedItems.Add(newItem, Convert.ToString(rnd.Next(0, Int32.MaxValue)));
Console.Write("\rAdding {0,5}% : {1,10:N0}/{2:N0}", Math.Round((((double)i / (double)nNewItems) * 100)), i, nNewItems);
}
Stopwatch stp = new Stopwatch();
var options = new BPlusTree <double, string> .OptionsV2(PrimitiveSerializer.Double, PrimitiveSerializer.String);
options.CalcBTreeOrder(16, 24);
options.FileBlockSize = 8192;
options.CreateFile = CreatePolicy.Always;
options.FileName = "I:\\test.tmp";
BulkInsertOptions opts = new BulkInsertOptions();
opts.CommitOnCompletion = true; // check how to properly set this value using Roger examples.
opts.DuplicateHandling = DuplicateHandling.LastValueWins;
opts.InputIsSorted = true;
opts.ReplaceContents = false;
AddUpdateValue update = new AddUpdateValue();
Console.WriteLine();
Console.WriteLine("Now creating tree ...");
using (var tree = new BPlusTree <double, string>(options))
{
stp.Start();
for (int i = 0; i < nOldItems; i++)
{
tree.AddOrUpdate(rnd.Next(0, Int32.MaxValue), ref update);
}
stp.Stop();
Console.WriteLine("Initial <{0:N0}> items => ET : {1} Speed : {2:N0} item/sec", nOldItems, stp.Elapsed, Math.Round((double)(nOldItems / stp.Elapsed.TotalSeconds), 5));
stp.Restart();
tree.AddRangeSorted(sortedItems, true);
stp.Stop();
Console.WriteLine("Bulk <{0:N0}> items => ET : {1} Speed : {2:N0} item/sec", nNewItems, stp.Elapsed, Math.Round((double)(nNewItems / stp.Elapsed.TotalSeconds), 5));
}
Console.ReadLine();
}
public static void Test_AllowUpdates()
{
var options = new BPlusTree <double, string> .OptionsV2(PrimitiveSerializer.Double, PrimitiveSerializer.String);
options.CalcBTreeOrder(16, 24);
options.FileBlockSize = 8192;
options.CreateFile = CreatePolicy.Always;
options.FileName = "I:\\test.tmp";
var sortedContent = new SortedDictionary <double, string>();
sortedContent.Add(10.0, "Demah");
using (var tree = new BPlusTree <double, string>(options))
{
tree.Add(10.0, "Hamed");
tree.AddRangeSorted(sortedContent, true);
}
}
static void Insert(BPlusTree <int, string> data, IEnumerable <KeyValuePair <int, string> > items, bool bulk, bool sorted)
{
if (bulk)
{
if (sorted)
{
data.AddRangeSorted(items);
}
else
{
data.AddRange(items);
}
}
else
{
foreach (KeyValuePair <int, string> kv in items)
{
data.Add(kv.Key, kv.Value);
}
}
}
