/// <summary>
/// Adds new time of a block to the list of times of recently downloaded blocks.
/// </summary>
/// <param name="peer">Peer that downloaded the block.</param>
/// <param name="blockDownloadTimeMs">Time in milliseconds it took to download the block from the peer.</param>
/// <param name="blockSize">Size of the downloaded block in bytes.</param>
public void AddSample(IBlockPullerBehavior peer, long blockDownloadTimeMs, int blockSize)
{
this.logger.LogTrace($"({nameof(peer)}:{peer.GetHashCode():x},{nameof(blockDownloadTimeMs)}:{blockDownloadTimeMs},{nameof(blockSize)}:{blockSize})");
double timePerKb = 1024.0 * (double)blockDownloadTimeMs / (double)blockSize;
if (timePerKb < 0.00001)
{
timePerKb = 0.00001;
}
lock (this.lockObject)
{
// If we reached the maximum number of samples, we need to remove oldest sample.
if (this.samplesCount == this.samples.Length)
{
PeerSample oldSample = this.samples[this.samplesIndex];
this.samplesSum -= oldSample.timePerKb;
this.peerReferenceCounter[oldSample.peer]--;
if (this.peerReferenceCounter[oldSample.peer] == 0)
{
this.peerReferenceCounter.Remove(oldSample.peer);
}
}
else
{
this.samplesCount++;
}
// Add new sample to the mix.
this.samples[this.samplesIndex].timePerKb = timePerKb;
this.samples[this.samplesIndex].peer = peer;
this.samplesIndex = (this.samplesIndex + 1) % this.samples.Length;
if (this.peerReferenceCounter.ContainsKey(peer))
{
this.peerReferenceCounter[peer]++;
}
else
{
this.peerReferenceCounter.Add(peer, 1);
}
// Update the sum and the average with the latest data.
this.samplesSum += timePerKb;
this.AverageBlockTimePerKb = this.samplesSum / this.samplesCount;
}
this.logger.LogTrace($"(-):{nameof(this.AverageBlockTimePerKb)}={this.AverageBlockTimePerKb}");
}
/// <summary>
/// Adds new time of a block to the list of times of recently downloaded blocks.
/// </summary>
/// <param name="peer">Peer that downloaded the block.</param>
/// <param name="blockDownloadTimeMs">Time in milliseconds it took to download the block from the peer.</param>
/// <param name="blockSize">Size of the downloaded block in bytes.</param>
public void AddSample(IBlockPullerBehavior peer, long blockDownloadTimeMs, int blockSize)
{
this.logger.LogTrace("({0}:{1:x},{2}:{3},{4}:{5})", nameof(peer), peer.GetHashCode(), nameof(blockDownloadTimeMs), blockDownloadTimeMs, nameof(blockSize), blockSize);
double timePerKb = 1024.0 * (double)blockDownloadTimeMs / (double)blockSize;
if (timePerKb < 0.00001)
{
timePerKb = 0.00001;
}
lock (this.lockObject)
{
// Add new sample to the mix.
PeerSample newSample = new PeerSample();
newSample.TimePerKb = timePerKb;
newSample.Peer = peer;
if (this.peerReferenceCounter.ContainsKey(peer))
{
this.peerReferenceCounter[peer]++;
}
else
{
this.peerReferenceCounter.Add(peer, 1);
}
PeerSample oldSample;
if (this.samples.Add(newSample, out oldSample))
{
// If we reached the maximum number of samples, we need to remove oldest sample.
this.samplesSum -= oldSample.TimePerKb;
this.peerReferenceCounter[oldSample.Peer]--;
if (this.peerReferenceCounter[oldSample.Peer] == 0)
{
this.peerReferenceCounter.Remove(oldSample.Peer);
}
}
// Update the sum and the average with the latest data.
this.samplesSum += timePerKb;
this.AverageBlockTimePerKb = this.samplesSum / this.samples.Count;
}
this.logger.LogTrace("(-):{0}={1}", nameof(this.AverageBlockTimePerKb), this.AverageBlockTimePerKb);
}
