public void TestSmall()
{
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
using (SortedTreeFile af = SortedTreeFile.CreateInMemory())
using (SortedTreeTable <HistorianKey, HistorianValue> file = af.OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
using (SortedTreeTableEditor <HistorianKey, HistorianValue> edit = file.BeginEdit())
{
for (int x = 0; x < 10000000; x++)
{
key.Timestamp = (ulong)x;
edit.AddPoint(key, value);
}
edit.Commit();
}
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> read = file.BeginRead())
using (SortedTreeScannerBase <HistorianKey, HistorianValue> scan = read.GetTreeScanner())
{
int count = 0;
scan.SeekToStart();
while (scan.Read(key, value))
{
count++;
}
System.Console.WriteLine(count.ToString());
}
}
}
public void TestBulkRolloverFile()
{
Stats.LookupKeys = 0;
DiskIoSession.ReadCount = 0;
DiskIoSession.WriteCount = 0;
Stats.ChecksumCount = 0;
DiskIoSession.Lookups = 0;
DiskIoSession.CachedLookups = 0;
long cnt;
Stopwatch sw = new Stopwatch();
sw.Start();
//using (SortedTreeTable<HistorianKey, HistorianValue> af = SortedTreeFile.CreateInMemory(4096).OpenOrCreateTable<HistorianKey, HistorianValue>(SortedTree.FixedSizeNode))
using (SortedTreeTable <HistorianKey, HistorianValue> af = SortedTreeFile.CreateInMemory(blockSize: 4096).OpenOrCreateTable <HistorianKey, HistorianValue>(HistorianFileEncodingDefinition.TypeGuid))
{
using (SortedTreeTableEditor <HistorianKey, HistorianValue> edit = af.BeginEdit())
{
edit.AddPoints(new PointStreamSequentialPoints(1, 20000000));
edit.Commit();
}
sw.Stop();
cnt = af.Count();
System.Console.WriteLine(cnt);
}
System.Console.WriteLine((float)(20 / sw.Elapsed.TotalSeconds));
}
public void EnduranceTest()
{
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
using (SortedTreeTable <HistorianKey, HistorianValue> target = SortedTreeFile.CreateInMemory().OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
for (uint x = 0; x < 100; x++)
{
using (SortedTreeTableEditor <HistorianKey, HistorianValue> fileEditor = target.BeginEdit())
{
for (int y = 0; y < 10; y++)
{
key.Timestamp = x;
key.PointID = x;
value.Value1 = x;
value.Value3 = x;
fileEditor.AddPoint(key, value);
x++;
}
fileEditor.Commit();
}
Assert.AreEqual(target.FirstKey.Timestamp, 0);
Assert.AreEqual(target.LastKey.Timestamp, x - 1);
}
}
}
public void TestCompressed()
{
int count = 10000000;
Stopwatch sw = new Stopwatch();
using (SortedTreeFile af = SortedTreeFile.CreateInMemory())
using (SortedTreeTable <AmiKey, AmiValue> table = af.OpenOrCreateTable <AmiKey, AmiValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
using (SortedTreeTableEditor <AmiKey, AmiValue> edit = table.BeginEdit())
{
sw.Start();
AmiKey key = new AmiKey();
AmiValue value = new AmiValue();
for (int x = 0; x < count; x++)
{
key.Timestamp = (uint)x;
edit.AddPoint(key, value);
}
edit.Commit();
sw.Stop();
Console.WriteLine(af.ArchiveSize / 1024.0 / 1024.0);
Console.WriteLine(count / sw.Elapsed.TotalSeconds / 1000000);
}
}
}
SortedTreeTable <HistorianKey, HistorianValue> CreateTable()
{
SortedTreeFile file = SortedTreeFile.CreateInMemory();
SortedTreeTable <HistorianKey, HistorianValue> table = file.OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding);
return(table);
}
private TestResults TestRandom(int pageSize, uint count)
{
//StringBuilder sb = new StringBuilder();
Random R = new Random(1);
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
DiskIoSession.ReadCount = 0;
DiskIoSession.WriteCount = 0;
Stats.ChecksumCount = 0;
DiskIoSession.Lookups = 0;
DiskIoSession.CachedLookups = 0;
Stopwatch sw = new Stopwatch();
sw.Start();
using (SortedTreeFile af = SortedTreeFile.CreateInMemory(blockSize: pageSize))
using (SortedTreeTable <HistorianKey, HistorianValue> af2 = af.OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
uint pointPairs = count / 5000;
for (uint i = 0; i < pointPairs; i++)
{
uint max = i * 5000 + 5000;
using (var edit = af2.BeginEdit())
{
for (ulong x = i * 5000; x < max; x++)
{
key.Timestamp = (uint)R.Next();
key.PointID = 2 * x;
value.Value3 = 3 * x;
value.Value1 = 4 * x;
//if ((x % 100) == 0)
// sb.AppendLine(x + "," + DiskIoSession.ReadCount + "," + DiskIoSession.WriteCount);
//if (x == 1000)
// DiskIoSession.BreakOnIO = true;
edit.AddPoint(key, value);
//edit.AddPoint(uint.MaxValue - x, 2 * x, 3 * x, 4 * x);
}
edit.Commit();
}
}
//long cnt = af.Count();
}
sw.Stop();
//File.WriteAllText(@"C:\temp\" + pageSize + ".csv",sb.ToString());
return(new TestResults()
{
PageSize = pageSize,
Rate = (float)(count / sw.Elapsed.TotalSeconds / 1000000),
ReadCount = DiskIoSession.ReadCount,
WriteCount = DiskIoSession.WriteCount,
ChecksumCount = Stats.ChecksumCount,
Lookups = DiskIoSession.Lookups,
CachedLookups = DiskIoSession.CachedLookups
});
}
public void AddPointTest()
{
using (SortedTreeTable <HistorianKey, HistorianValue> target = SortedTreeFile.CreateInMemory().OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
using (SortedTreeTableEditor <HistorianKey, HistorianValue> fileEditor = target.BeginEdit())
{
fileEditor.AddPoint(new HistorianKey(), new HistorianValue());
fileEditor.Commit();
}
}
}
public void CreateSnapshotTest()
{
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
key.Timestamp = 1;
key.PointID = 2;
value.Value1 = 3;
value.Value2 = 4;
using (SortedTreeTable <HistorianKey, HistorianValue> target = SortedTreeFile.CreateInMemory().OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
ulong date = 1;
ulong pointId = 2;
ulong value1 = 3;
ulong value2 = 4;
SortedTreeTableSnapshotInfo <HistorianKey, HistorianValue> snap1;
using (SortedTreeTableEditor <HistorianKey, HistorianValue> fileEditor = target.BeginEdit())
{
fileEditor.AddPoint(key, value);
key.Timestamp++;
fileEditor.AddPoint(key, value);
snap1 = target.AcquireReadSnapshot();
fileEditor.Commit();
}
SortedTreeTableSnapshotInfo <HistorianKey, HistorianValue> snap2 = target.AcquireReadSnapshot();
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> instance = snap1.CreateReadSnapshot())
{
SortedTreeScannerBase <HistorianKey, HistorianValue> scanner = instance.GetTreeScanner();
scanner.SeekToStart();
Assert.AreEqual(false, scanner.Read(key, value));
}
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> instance = snap2.CreateReadSnapshot())
{
SortedTreeScannerBase <HistorianKey, HistorianValue> scanner = instance.GetTreeScanner();
scanner.SeekToStart();
Assert.AreEqual(true, scanner.Read(key, value));
Assert.AreEqual(1uL, key.Timestamp);
Assert.AreEqual(2uL, key.PointID);
Assert.AreEqual(3uL, value.Value1);
Assert.AreEqual(4uL, value.Value2);
}
Assert.AreEqual(1uL, target.FirstKey.Timestamp);
Assert.AreEqual(2uL, target.LastKey.Timestamp);
}
}
/// <summary>
/// Creates a new <see cref="SortedTreeTable{TKey,TValue}"/> based on the settings passed to this class.
/// Once created, it is up to he caller to make sure that this class is properly disposed of.
/// </summary>
/// <param name="estimatedSize">The estimated size of the file. -1 to ignore this feature and write to the first available directory.</param>
/// <returns></returns>
public SortedTreeTable <TKey, TValue> CreateArchiveFile(long estimatedSize = -1)
{
using (m_lock.EnterReadLock())
{
if (m_settings.IsMemoryArchive)
{
SortedTreeFile af = SortedTreeFile.CreateInMemory(blockSize: 4096, flags: m_settings.Flags.ToArray());
return(af.OpenOrCreateTable <TKey, TValue>(m_settings.EncodingMethod));
}
else
{
string fileName = CreateArchiveName(GetPathWithEnoughSpace(estimatedSize));
SortedTreeFile af = SortedTreeFile.CreateFile(fileName, blockSize: 4096, flags: m_settings.Flags.ToArray());
return(af.OpenOrCreateTable <TKey, TValue>(m_settings.EncodingMethod));
}
}
}
public void BenchmarkWriteSpeed()
{
DebugStopwatch sw = new DebugStopwatch();
double time;
double count = 0;
using (SortedTreeFile file = SortedTreeFile.CreateInMemory())
{
var table = file.OpenOrCreateTable <HistorianKey, HistorianValue>(HistorianFileEncodingDefinition.TypeGuid);
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
time = sw.TimeEvent(() =>
{
//TreeKeyMethodsBase<HistorianKey>.ClearStats();
//TreeValueMethodsBase<HistorianKey>.ClearStats();
count = 0;
using (var scan = table.BeginEdit())
{
for (uint x = 0; x < 10000000; x++)
{
key.PointID = x;
scan.AddPoint(key, value);
count++;
}
scan.Rollback();
}
});
}
Console.WriteLine((count / 1000000 / time).ToString() + " Million PPS");
//Console.WriteLine("KeyMethodsBase calls");
//for (int x = 0; x < 23; x++)
//{
// Console.WriteLine(TreeKeyMethodsBase<HistorianKey>.CallMethods[x] + "\t" + ((TreeKeyMethodsBase<HistorianKey>.Method)(x)).ToString());
//}
//Console.WriteLine("ValueMethodsBase calls");
//for (int x = 0; x < 5; x++)
//{
// Console.WriteLine(TreeValueMethodsBase<HistorianValue>.CallMethods[x] + "\t" + ((TreeValueMethodsBase<HistorianValue>.Method)(x)).ToString());
//}
}
public void TestRollover()
{
int count = 1000000;
Stopwatch sw = new Stopwatch();
using (SortedTreeFile af = SortedTreeFile.CreateInMemory())
using (SortedTreeTable <AmiKey, AmiKey> table = af.OpenOrCreateTable <AmiKey, AmiKey>(EncodingDefinition.FixedSizeCombinedEncoding))
{
using (SortedTreeTableEditor <AmiKey, AmiKey> edit = table.BeginEdit())
{
sw.Start();
AmiKey key = new AmiKey();
AmiKey value = new AmiKey();
for (int x = 0; x < count; x++)
{
key.Timestamp = (uint)x;
edit.AddPoint(key, value);
}
edit.Commit();
sw.Stop();
Console.WriteLine(af.ArchiveSize / 1024.0 / 1024.0);
Console.WriteLine(count / sw.Elapsed.TotalSeconds / 1000000);
}
using (SortedTreeFile af2 = SortedTreeFile.CreateInMemory())
using (SortedTreeTable <AmiKey, AmiKey> table2 = af2.OpenOrCreateTable <AmiKey, AmiKey>(new EncodingDefinition(EncodingDefinition.FixedSizeCombinedEncoding.KeyValueEncodingMethod, EncodingDefinition.FixedSizeCombinedEncoding.KeyValueEncodingMethod)))
using (SortedTreeTableEditor <AmiKey, AmiKey> edit = table2.BeginEdit())
{
using (SortedTreeTableReadSnapshot <AmiKey, AmiKey> read = table.BeginRead())
using (SortedTreeScannerBase <AmiKey, AmiKey> scan = read.GetTreeScanner())
{
scan.SeekToStart();
edit.AddPoints(scan);
}
}
Console.WriteLine(count);
}
}
private TestResults Test(int pageSize)
{
Stats.LookupKeys = 0;
DiskIoSession.ReadCount = 0;
DiskIoSession.WriteCount = 0;
Stats.ChecksumCount = 0;
DiskIoSession.Lookups = 0;
DiskIoSession.CachedLookups = 0;
long cnt;
Stopwatch sw = new Stopwatch();
Stopwatch sw2 = new Stopwatch();
sw.Start();
using (SortedTreeTable <HistorianKey, HistorianValue> af = SortedTreeFile.CreateInMemory(blockSize: pageSize).OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
using (SortedTreeTableEditor <HistorianKey, HistorianValue> edit = af.BeginEdit())
{
for (int x = 0; x < 100; x++)
{
edit.AddPoints(new PointStreamSequential(x * 10000, 10000));
}
edit.Commit();
}
sw.Stop();
sw2.Start();
cnt = af.Count();
sw2.Stop();
}
return(new TestResults()
{
Count = cnt,
PageSize = pageSize,
RateWrite = (float)(1 / sw.Elapsed.TotalSeconds),
RateRead = (float)(1 / sw2.Elapsed.TotalSeconds),
ReadCount = DiskIoSession.ReadCount,
WriteCount = DiskIoSession.WriteCount,
ChecksumCount = Stats.ChecksumCount,
Lookups = DiskIoSession.Lookups,
CachedLookups = DiskIoSession.CachedLookups
});
}
public void TestFixed()
{
int count = 10000000;
Stopwatch sw = new Stopwatch();
using (var af = SortedTreeFile.CreateInMemory())
using (var table = af.OpenOrCreateTable <AmiKey, AmiKey>(EncodingDefinition.FixedSizeCombinedEncoding))
{
var key = new AmiKey();
var value = new AmiKey();
using (var edit = table.BeginEdit())
{
sw.Start();
for (int x = 0; x < count; x++)
{
key.Timestamp = (uint)x;
edit.AddPoint(key, value);
}
edit.Commit();
sw.Stop();
Console.WriteLine(af.ArchiveSize / 1024.0 / 1024.0);
Console.WriteLine(count / sw.Elapsed.TotalSeconds / 1000000);
}
using (var read = table.BeginRead())
using (var scan = read.GetTreeScanner())
{
scan.SeekToStart();
while (scan.Read(key, value))
{
count--;
}
}
Console.WriteLine(count);
}
}
SortedTreeTable <HistorianKey, HistorianValue> CreateTable()
{
var r = new Random(seed++);
var key = new HistorianKey();
var value = new HistorianValue();
var file = SortedTreeFile.CreateInMemory();
var table = file.OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding);
using (var edit = table.BeginEdit())
{
for (int x = 0; x < 1000; x++)
{
key.Timestamp = (ulong)r.Next();
key.PointID = (ulong)r.Next();
key.EntryNumber = (ulong)r.Next();
edit.AddPoint(key, value);
}
edit.Commit();
}
return(table);
}
public void PartitionFileConstructorTest()
{
using (SortedTreeTable <HistorianKey, HistorianValue> target = SortedTreeFile.CreateInMemory().OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
}
}
/// <summary>
/// Appends this data to this stage. Also queues up for deletion if necessary.
/// </summary>
/// <param name="args">arguments handed to this class from either the
/// PrestageWriter or another StageWriter of a previous generation</param>
/// <remarks>
/// This method must be called in a single threaded manner.
/// </remarks>
public void AppendData(PrebufferRolloverArgs <TKey, TValue> args)
{
if (m_stopped)
{
Log.Publish(MessageLevel.Info, "No new points can be added. Point queue has been stopped. Data in rollover will be lost");
return;
}
if (m_disposed)
{
Log.Publish(MessageLevel.Info, "First stage writer has been disposed. Data in rollover will be lost");
return;
}
SortedTreeFile file = SortedTreeFile.CreateInMemory(4096);
SortedTreeTable <TKey, TValue> table = file.OpenOrCreateTable <TKey, TValue>(m_settings.EncodingMethod);
using (SortedTreeTableEditor <TKey, TValue> edit = table.BeginEdit())
{
edit.AddPoints(args.Stream);
edit.Commit();
}
bool shouldWait = false;
//If there is data to write then write it to the current archive.
lock (m_syncRoot)
{
if (m_stopped)
{
Log.Publish(MessageLevel.Info, "No new points can be added. Point queue has been stopped. Data in rollover will be lost");
table.Dispose();
return;
}
if (m_disposed)
{
Log.Publish(MessageLevel.Info, "First stage writer has been disposed. Data in rollover will be lost");
table.Dispose();
return;
}
using (ArchiveListEditor <TKey, TValue> edit = m_list.AcquireEditLock())
{
edit.Add(table);
}
m_pendingTables1.Add(table);
if (m_pendingTables1.Count == 10)
{
using (UnionTreeStream <TKey, TValue> reader = new UnionTreeStream <TKey, TValue>(m_pendingTables1.Select(x => new ArchiveTreeStreamWrapper <TKey, TValue>(x)), true))
{
SortedTreeFile file1 = SortedTreeFile.CreateInMemory(4096);
SortedTreeTable <TKey, TValue> table1 = file1.OpenOrCreateTable <TKey, TValue>(m_settings.EncodingMethod);
using (SortedTreeTableEditor <TKey, TValue> edit = table1.BeginEdit())
{
edit.AddPoints(reader);
edit.Commit();
}
using (ArchiveListEditor <TKey, TValue> edit = m_list.AcquireEditLock())
{
//Add the newly created file.
edit.Add(table1);
foreach (SortedTreeTable <TKey, TValue> table2 in m_pendingTables1)
{
edit.TryRemoveAndDelete(table2.ArchiveId);
}
}
m_pendingTables2.Add(table1);
m_pendingTables1.Clear();
}
}
if (m_pendingTables2.Count == 10)
{
using (UnionTreeStream <TKey, TValue> reader = new UnionTreeStream <TKey, TValue>(m_pendingTables2.Select(x => new ArchiveTreeStreamWrapper <TKey, TValue>(x)), true))
{
SortedTreeFile file1 = SortedTreeFile.CreateInMemory(4096);
SortedTreeTable <TKey, TValue> table1 = file1.OpenOrCreateTable <TKey, TValue>(m_settings.EncodingMethod);
using (SortedTreeTableEditor <TKey, TValue> edit = table1.BeginEdit())
{
edit.AddPoints(reader);
edit.Commit();
}
using (ArchiveListEditor <TKey, TValue> edit = m_list.AcquireEditLock())
{
//Add the newly created file.
edit.Add(table1);
foreach (SortedTreeTable <TKey, TValue> table2 in m_pendingTables2)
{
edit.TryRemoveAndDelete(table2.ArchiveId);
}
}
m_pendingTables3.Add(table1);
m_pendingTables2.Clear();
}
}
m_lastCommitedSequenceNumber.Value = args.TransactionId;
long currentSizeMb = (m_pendingTables1.Sum(x => x.BaseFile.ArchiveSize) + m_pendingTables2.Sum(x => x.BaseFile.ArchiveSize)) >> 20;
if (currentSizeMb > m_settings.MaximumAllowedMb)
{
shouldWait = true;
m_rolloverTask.Start();
m_rolloverComplete.Reset();
}
else if (currentSizeMb > m_settings.RolloverSizeMb)
{
m_rolloverTask.Start();
}
else
{
m_rolloverTask.Start(m_settings.RolloverInterval);
}
}
if (SequenceNumberCommitted != null)
{
SequenceNumberCommitted(args.TransactionId);
}
if (shouldWait)
{
Log.Publish(MessageLevel.NA, MessageFlags.PerformanceIssue, "Queue is full", "Rollover task is taking a long time. A long pause on the inputs is about to occur.");
m_rolloverComplete.WaitOne();
}
}
