// pre-run to ensure code has executed once before timing benchmarks
static void WarmUp()
{
SymSpell dict = new SymSpell(16, 2, 7);
dict.LoadDictionary(DictionaryPath[0], 0, 1);
var result = dict.Lookup("hockie", SymSpell.Verbosity.All, 1);
Original.SymSpell dictOrig = new Original.SymSpell(2, 7);
dictOrig.LoadDictionary(DictionaryPath[0], "", 0, 1);
var resultOrig = dictOrig.Lookup("hockie", "", 1, 2);
}
static void BenchmarkPrecalculationLookup()
{
string[] query1k = BuildQuery1K();
int resultNumber = 0;
int repetitions = 1000;
int totalLoopCount = 0;
long totalMatches = 0;
long totalOrigMatches = 0;
double totalLoadTime, totalMem, totalLookupTime, totalOrigLoadTime, totalOrigMem, totalOrigLookupTime;
totalLoadTime = totalMem = totalLookupTime = totalOrigLoadTime = totalOrigMem = totalOrigLookupTime = 0;
long totalRepetitions = 0;
Stopwatch stopWatch = new Stopwatch();
for (int maxEditDistance = 1; maxEditDistance <= 3; maxEditDistance++)
{
for (int prefixLength = 5; prefixLength <= 7; prefixLength++)
{
//benchmark dictionary precalculation size and time
//maxEditDistance=1/2/3; prefixLength=5/6/7; dictionary=30k/82k/500k; class=instantiated/static
for (int i = 0; i < DictionaryPath.Length; i++)
{
totalLoopCount++;
//instantiated dictionary
long memSize = GC.GetTotalMemory(true);
stopWatch.Restart();
SymSpell dict = new SymSpell(DictionarySize[i], maxEditDistance, prefixLength);
dict.LoadDictionary(DictionaryPath[i], 0, 1);
stopWatch.Stop();
long memDelta = GC.GetTotalMemory(true) - memSize;
totalLoadTime += stopWatch.Elapsed.TotalSeconds;
totalMem += memDelta / 1024.0 / 1024.0;
Console.WriteLine("Precalculation instance " + stopWatch.Elapsed.TotalSeconds.ToString("N3") + "s " + (memDelta / 1024.0 / 1024.0).ToString("N1") + "MB " + dict.WordCount.ToString("N0") + " words " + dict.EntryCount.ToString("N0") + " entries MaxEditDistance=" + maxEditDistance.ToString() + " prefixLength=" + prefixLength.ToString() + " dict=" + DictionaryName[i]);
//static dictionary
memSize = GC.GetTotalMemory(true);
stopWatch.Restart();
Original.SymSpell dictOrig = new Original.SymSpell(maxEditDistance, prefixLength);
dictOrig.LoadDictionary(DictionaryPath[i], "", 0, 1);
stopWatch.Stop();
memDelta = GC.GetTotalMemory(true) - memSize;
totalOrigLoadTime += stopWatch.Elapsed.TotalSeconds;
totalOrigMem += memDelta / 1024.0 / 1024.0;
Console.WriteLine("Precalculation static " + stopWatch.Elapsed.TotalSeconds.ToString("N3") + "s " + (memDelta / 1024 / 1024.0).ToString("N1") + "MB " + dictOrig.Count.ToString("N0") + " words " + dictOrig.EntryCount.ToString("N0") + " entries MaxEditDistance=" + maxEditDistance.ToString() + " prefixLength=" + prefixLength.ToString() + " dict=" + DictionaryName[i]);
//benchmark lookup result number and time
//maxEditDistance=1/2/3; prefixLength=5/6/7; dictionary=30k/82k/500k; verbosity=0/1/2; query=exact/non-exact/mix; class=instantiated/static
foreach (SymSpell.Verbosity verbosity in Enum.GetValues(typeof(SymSpell.Verbosity)))
{
//instantiated exact
stopWatch.Restart();
for (int round = 0; round < repetitions; round++)
{
resultNumber = dict.Lookup("different", verbosity, maxEditDistance).Count;
}
stopWatch.Stop();
totalLookupTime += stopWatch.Elapsed.TotalMilliseconds;
totalMatches += resultNumber;
Console.WriteLine("Lookup instance " + resultNumber.ToString("N0") + " results " + (stopWatch.Elapsed.TotalMilliseconds / repetitions).ToString("N6") + "ms/op verbosity=" + verbosity.ToString() + " query=exact");
//static exact
stopWatch.Restart();
for (int round = 0; round < repetitions; round++)
{
resultNumber = dictOrig.Lookup("different", "", maxEditDistance, (int)verbosity).Count;
}
stopWatch.Stop();
totalOrigLookupTime += stopWatch.Elapsed.TotalMilliseconds;
totalOrigMatches += resultNumber;
Console.WriteLine("Lookup static " + resultNumber.ToString("N0") + " results " + (stopWatch.Elapsed.TotalMilliseconds / repetitions).ToString("N6") + "ms/op verbosity=" + verbosity.ToString() + " query=exact");
Console.WriteLine();
totalRepetitions += repetitions;
//instantiated non-exact
stopWatch.Restart();
for (int round = 0; round < repetitions; round++)
{
resultNumber = dict.Lookup("hockie", verbosity, maxEditDistance).Count;
}
stopWatch.Stop();
totalLookupTime += stopWatch.Elapsed.TotalMilliseconds;
totalMatches += resultNumber;
Console.WriteLine("Lookup instance " + resultNumber.ToString("N0") + " results " + (stopWatch.Elapsed.TotalMilliseconds / repetitions).ToString("N6") + "ms/op verbosity=" + verbosity.ToString() + " query=non-exact");
//static non-exact
stopWatch.Restart();
for (int round = 0; round < repetitions; round++)
{
resultNumber = dictOrig.Lookup("hockie", "", maxEditDistance, (int)verbosity).Count;
}
stopWatch.Stop();
totalOrigLookupTime += stopWatch.Elapsed.TotalMilliseconds;
totalOrigMatches += resultNumber;
Console.WriteLine("Lookup static " + resultNumber.ToString("N0") + " results " + (stopWatch.Elapsed.TotalMilliseconds / repetitions).ToString("N6") + "ms/op verbosity=" + verbosity.ToString() + " query=non-exact");
Console.WriteLine();
totalRepetitions += repetitions;
//instantiated mix
stopWatch.Restart();
resultNumber = 0; foreach (var word in query1k)
{
resultNumber += dict.Lookup(word, verbosity, maxEditDistance).Count;
}
stopWatch.Stop();
totalLookupTime += stopWatch.Elapsed.TotalMilliseconds;
totalMatches += resultNumber;
Console.WriteLine("Lookup instance " + resultNumber.ToString("N0") + " results " + (stopWatch.Elapsed.TotalMilliseconds / query1k.Length).ToString("N6") + "ms/op verbosity=" + verbosity.ToString() + " query=mix");
//static mix
stopWatch.Restart();
resultNumber = 0; foreach (var word in query1k)
{
resultNumber += dictOrig.Lookup(word, "", maxEditDistance, (int)verbosity).Count;
}
stopWatch.Stop();
totalOrigLookupTime += stopWatch.Elapsed.TotalMilliseconds;
totalOrigMatches += resultNumber;
Console.WriteLine("Lookup static " + resultNumber.ToString("N0") + " results " + (stopWatch.Elapsed.TotalMilliseconds / query1k.Length).ToString("N6") + "ms/op verbosity=" + verbosity.ToString() + " query=mix");
Console.WriteLine();
totalRepetitions += query1k.Length;
}
Console.WriteLine();
dict = null;
dictOrig = null;
}
}
}
Console.WriteLine("Average Precalculation time instance " + (totalLoadTime / totalLoopCount).ToString("N3") + "s " + ((totalLoadTime / totalOrigLoadTime) - 1).ToString("P1"));
Console.WriteLine("Average Precalculation time static " + (totalOrigLoadTime / totalLoopCount).ToString("N3") + "s");
Console.WriteLine("Average Precalculation memory instance " + (totalMem / totalLoopCount).ToString("N1") + "MB " + ((totalMem / totalOrigMem) - 1).ToString("P1"));
Console.WriteLine("Average Precalculation memory static " + (totalOrigMem / totalLoopCount).ToString("N1") + "MB");
Console.WriteLine("Average Lookup time instance " + (totalLookupTime / totalRepetitions).ToString("N3") + "ms " + ((totalLookupTime / totalOrigLookupTime) - 1).ToString("P1"));
Console.WriteLine("Average Lookup time static " + (totalOrigLookupTime / totalRepetitions).ToString("N3") + "ms");
Console.WriteLine("Total Lookup results instance " + totalMatches.ToString("N0") + " " + (totalMatches - totalOrigMatches) + " differences");
Console.WriteLine("Total Lookup results static " + totalOrigMatches.ToString("N0"));
}