/// <summary>
/// Generate DataResults containing various information like average response time, number of users... from testResults
/// </summary>
public void CreateDataResults()
{
_dataResults = new List<RequestDataResults>();
var query = _testResults.httpSample.GroupBy(x => x.lb);
query.ToList().ForEach(group =>
{
var first = group.First();
int firstCount = 90*group.Count()/100;
int secondCount = 80*group.Count()/100;
var filteredList = group.OrderBy(x => x.t)
.Take(firstCount)
.OrderByDescending(x => x.t)
.Take(secondCount);
if (!filteredList.Any())
filteredList = group;
var requestDataResults = new RequestDataResults
{
AverageResponseTime = Math.Round(group.Average(x => x.t), 0),
MinResponseTime = Math.Round(group.Min(x => x.t), 0),
MaxResponseTime = Math.Round(group.Max(x => x.t), 0),
Request = first.lb,
Date = first.ts.ToDateTime(),
UserCount = first.ng,
HostName = first.hn,
MinResponseTimeExcludingTopDecile = Math.Round(filteredList.Min(x => x.t), 0),
MaxResponseTimeExcludingBottomDecile = Math.Round(filteredList.Max(x => x.t), 0),
AverageResponseTimeExcludingTopAndBottomDeciles = Math.Round(filteredList.Average(x => x.t), 0),
ResponseTimeDistribution = CalculateDistribution(group.ToList())
};
_dataResults.Add(requestDataResults);
});
}
/// <summary>
/// Render text at the bottom of a bar
/// </summary>
/// <param name="gp"></param>
/// <param name="d"></param>
/// <param name="x"></param>
protected override void RenderBarLabel(GraphPane gp, RequestDataResults d, float x)
{
var requestText = new TextObj(d.Request + " -", x, 0).Style(Color.Black, 7);
requestText.FontSpec.Angle = 25;
requestText.Location.AlignH = AlignH.Right;
gp.GraphObjList.Add(requestText);
}
protected override void RenderBarLabel(GraphPane gp, RequestDataResults d, float x)
{
var dateText = new TextObj(d.Date.ToShortDateString() + " .", x, 0);
dateText.FontSpec.Fill.IsVisible = false;
dateText.FontSpec.Border.IsVisible = false;
dateText.FontSpec.FontColor = Color.Black;
dateText.FontSpec.Size = 7;
dateText.FontSpec.Angle = 45;
dateText.Location.AlignH = AlignH.Right;
gp.GraphObjList.Add(dateText);
}
/// <summary>
/// Render curve representing the distribution of response time
/// </summary>
/// <param name="gp"></param>
/// <param name="dataResults"></param>
/// <param name="index"></param>
/// <param name="max"></param>
protected virtual void RenderResponseTimeDistributionCurve(GraphPane gp, RequestDataResults dataResults, int index, int max)
{
if (dataResults.ResponseTimeDistribution != null && dataResults.ResponseTimeDistribution.Count() > 0)
{
int pivot = dataResults.ResponseTimeDistribution.Count()/2;
var points = new PointPairList();
float x = index;
points.Add(x, dataResults.MinResponseTime);
for (int i = 0; i <dataResults.ResponseTimeDistribution.Count(); i++)
{
float offset;
if (i < pivot)
{
offset = 0.1f;
}
else
{
offset = -0.1f;
}
x += offset;
points.Add(new PointPair(x, Math.Min(dataResults.ResponseTimeDistribution[i], max)));
}
int factor = 40;
for (int i = 0; i < dataResults.ResponseTimeDistribution.Count(); i++)
{
var line = new LineObj(Color.FromArgb(100, factor, factor, factor), points[i].X, points[i].Y,
points[i + 1].X, points[i + 1].Y);
line.Line.Width = 1;
gp.GraphObjList.Add(line);
}
}
}
/// <summary>
/// Render min/max line
/// </summary>
/// <param name="gp"></param>
/// <param name="d"></param>
/// <param name="x"></param>
/// <param name="maxY"></param>
protected virtual void RenderMinMaxLine(GraphPane gp, RequestDataResults d, int x, int maxY)
{
double max = Math.Min(maxY, d.MaxResponseTime);
int factor = 60;
var line = new LineObj(Color.FromArgb(75, factor, factor, factor), x, max, x, d.MinResponseTime);
gp.GraphObjList.Add(line);
}
/// <summary>
/// Render min/max response time excluding the 10% fastest and 10% slowest requests
/// </summary>
/// <param name="gp"></param>
/// <param name="d"></param>
/// <param name="x"></param>
/// <param name="maxY"></param>
protected virtual void RenderMinMaxExcludingExtremesLine(GraphPane gp, RequestDataResults d, int x, int maxY)
{
double max = Math.Min(maxY, d.MaxResponseTimeExcludingBottomDecile);
int factor = 60;
var line = new LineObj(Color.FromArgb(75, factor, factor, factor), x, max, x, d.MinResponseTimeExcludingTopDecile);
line.Line.Width = 3;
gp.GraphObjList.Add(line);
}
/// <summary>
/// Render text at the bottom of a bar
/// </summary>
/// <param name="gp"></param>
/// <param name="d"></param>
/// <param name="x"></param>
protected virtual void RenderBarLabel(GraphPane gp, RequestDataResults d, float x)
{
// Do nothing
}
/// <summary>
/// Render text inside bar
/// </summary>
/// <param name="gp"></param>
/// <param name="d"></param>
/// <param name="x"></param>
protected virtual void RenderBarContent(GraphPane gp, RequestDataResults d, float x)
{
var avgResponseTimeText = new TextObj(d.AverageResponseTime.ToString(), x, d.AverageResponseTime / 2).Style(Color.White, 7);
gp.GraphObjList.Add(avgResponseTimeText);
}
/// <summary>
/// Render average response time excluding the 10% fastest and 10% slowest requests
/// </summary>
/// <param name="gp"></param>
/// <param name="d"></param>
/// <param name="x"></param>
protected virtual void RenderAverageLine(GraphPane gp, RequestDataResults d, int x)
{
int factor = 60;
var line = new LineObj(Color.FromArgb(100, factor, factor, factor), x-0.3, d.AverageResponseTimeExcludingTopAndBottomDeciles, x+0.3, d.AverageResponseTimeExcludingTopAndBottomDeciles);
line.Line.Width = 3;
gp.GraphObjList.Add(line);
}