private static void WriteDistributed(IDistributed x, string key, HttpContext context)
{
var percentiles = x.Percentiles(0.5, 0.75, 0.95, 0.98, 0.99, 0.999);
var max = $"{key}.max;dur={x.Max}";
var min = $"{key}.min;dur={x.Min}";
var mean = $"{key}.mean;dur={x.Mean}";
var stdDev = $"{key}.stdDev;dur={x.StdDev}";
var median = $"{key}.median;dur={percentiles[0]}";
var desc = x is TimerMetric timer ? $" <= {timer.DurationUnit.Abbreviate()}\"" : string.Empty;
var p75 = $"{key}.p75;dur={percentiles[1]};desc=\"75%%{desc}\"";
var p95 = $"{key}.p95;dur={percentiles[2]};desc=\"95%%{desc}\"";
var p98 = $"{key}.p98;dur={percentiles[3]};desc=\"98%%{desc}\"";
var p99 = $"{key}.p99;dur={percentiles[4]};desc=\"99%%{desc}\"";
var p999 = $"{key}.p999;dur={percentiles[5]};desc=\"99.99%%{desc}\"";
AddServerTimingEntry(context, max);
AddServerTimingEntry(context, min);
AddServerTimingEntry(context, mean);
AddServerTimingEntry(context, stdDev);
AddServerTimingEntry(context, median);
AddServerTimingEntry(context, p75);
AddServerTimingEntry(context, p95);
AddServerTimingEntry(context, p98);
AddServerTimingEntry(context, p99);
AddServerTimingEntry(context, p999);
}
private static void WriteDistributed(TextWriter writer, IDistributed distribution)
{
var percentiles = distribution.Percentiles(0.5, 0.75, 0.95, 0.98, 0.99, 0.999);
writer.Write(" min = %{0:2}\n", distribution.Min);
writer.Write(" max = %{0:2}\n", distribution.Max);
writer.Write(" mean = %{0:2}\n", distribution.Mean);
writer.Write(" stddev = %{0:2}\n", distribution.StdDev);
writer.Write(" median = %{0:2}\n", percentiles[0]);
writer.Write(" 75%% <= %{0:2}\n", percentiles[1]);
writer.Write(" 95%% <= %{0:2}\n", percentiles[2]);
writer.Write(" 98%% <= %{0:2}\n", percentiles[3]);
writer.Write(" 99%% <= %{0:2}\n", percentiles[4]);
writer.Write(" 99.9%% <= %{0:2}\n", percentiles[5]);
}
/// <summary>
/// 是否包含弱检索式
/// </summary>
/// <param name="filter">分期过滤器</param>
/// <returns>若包含则为<c>true</c>，否则为<c>false</c></returns>
public static bool IsDangerous(this IDistributed filter)
{
if (filter.ID.HasValue)
{
return(false);
}
if (filter.Name != null)
{
return(false);
}
if (!string.IsNullOrEmpty(filter.Remark))
{
return(false);
}
return(true);
}
/// <summary>
/// 获取分期的剩余
/// </summary>
/// <param name="dist">分期</param>
/// <param name="dt">日期，若为<c>null</c>则返回总额</param>
/// <returns>指定日期的总额，若早于日期则为<c>null</c></returns>
public static double?GetBookValueOn(IDistributed dist, DateTime?dt)
{
if (!dt.HasValue ||
dist.TheSchedule == null)
{
return(dist.Value);
}
var last = dist.TheSchedule.LastOrDefault(item => DateHelper.CompareDate(item.Date, dt) <= 0);
if (last != null)
{
return(last.Value);
}
if (DateHelper.CompareDate(dist.Date, dt) <= 0)
{
return(dist.Value);
}
return(null);
}
private static void AppendDistribution(StringBuilder sb, IDistributed distribution)
{
sb.Append("\"count\":").Append(distribution.Count)
.Append(",\"max\":").Append(distribution.Max)
.Append(",\"min\":").Append(distribution.Min)
.Append(",\"mean\":").Append(distribution.Mean)
.Append(",\"std_dev\":").Append(distribution.StdDev);
sb.Append(",\"percentiles\":[");
var values = distribution.Percentiles(percentiles);
for (var i = 0; i < values.Length; i++)
{
sb.Append(values[i]);
if (i < values.Length - 1)
{
sb.Append(',');
}
}
sb.Append("]");
}
public static double?GetBookValueOn(IDistributed dist, DateTime?dt) => DistributedAccountant.GetBookValueOn(dist, dt);
private static void AppendHistogram(StringBuilder sb, IDistributed histogram)
{
sb.Append('{');
AppendDistribution(sb, histogram);
sb.Append('}');
}
