private Metric MeasureHot <T>(Func <Sample, bool> samplingPredicate, TextWriter status, string namePrefix, Func <Stream, T> prepInput, Action <IEngine, T> callMatcher)
{
var metric = new Metric($"{namePrefix} hot",
new Axis("Pattern", Patterns),
new Axis("Matcher", Matchers.Select(x => x.Item1)));
var matchers = (from pattern in Patterns
from matcher in Matchers
select new { Item1 = new { Item1 = pattern, Item2 = matcher.Item1 }, Item2 = matcher.Item2().Compile(pattern) }).ToDictionary(x => x.Item1, x => x.Item2);
status.Write($"Reading dataset..."); status.Flush();
var stream = new ConcatenatedStream(Dataset);
stream.Seek(0, SeekOrigin.Begin);
var input = prepInput(stream);
status.WriteLine($" done.");
for (int i = 0; i < Patterns.Count; ++i)
{
status.WriteLine($"Pattern {i+1}/{Patterns.Count}");
var pattern = Patterns[i];
foreach (var entry in Matchers)
{
var matcher = matchers[new { Item1 = pattern, Item2 = entry.Item1 }];
callMatcher(matcher, input);
var matchingTimeSample = SampleWhile(samplingPredicate, () => callMatcher(matcher, input));
metric.Add(matchingTimeSample, pattern, entry.Item1);
}
}
return(metric);
}
private Metric MeasureCold <T>(Func <Sample, bool> samplingPredicate, TextWriter status, string namePrefix, Func <Stream, T> prepInput, Action <IEngine, T> callMatcher)
{
var metric = new Metric($"{namePrefix} cold",
new Axis("Pattern", Patterns),
new Axis("Matcher", Matchers.Select(x => x.Item1)));
var compilers = (from matcher in Matchers
select new { matcher.Item1, Item2 = matcher.Item2() }).ToDictionary(x => x.Item1, x => x.Item2);
status.Write($"Reading dataset..."); status.Flush();
var stream = new ConcatenatedStream(Dataset);
stream.Seek(0, SeekOrigin.Begin);
var input = prepInput(stream);
status.WriteLine($" done.");
foreach (var pattern in Patterns)
{
foreach (var matcher in Matchers)
{
var compiler = compilers[matcher.Item1];
var matchingTimeSample = SampleWhile(samplingPredicate, () => callMatcher(compiler.Compile(pattern), input));
metric.Add(matchingTimeSample, pattern, matcher.Item1);
}
}
return(metric);
}