private static void Warmup(ImmutableArray <SourceFile> files)
{
Console.WriteLine("Warming up...");
var addLock = new object();
var reportLock = new object();
var warmups = new SegmentedList <double>(1 << (int)Math.Ceiling(Math.Log2(files.Length * s_warmupCount)));
var nextReport = -1L;
var parsed = 0; var total = files.Length * s_warmupCount;
var start = Stopwatch.GetTimestamp();
Parallel.ForEach(files, new ParallelOptions
{
MaxDegreeOfParallelism = s_threadsCount
}, (file, _s, idx) =>
{
for (var round = 0; round < s_warmupCount; round++)
{
var tStart = Stopwatch.GetTimestamp();
_ = LuaSyntaxTree.ParseText(file.Text, path: file.FileName);
var tEnd = Stopwatch.GetTimestamp();
lock (addLock)
warmups.Add(tEnd - tStart);
var ourParsed = Interlocked.Increment(ref parsed);
if (nextReport <= Stopwatch.GetTimestamp() && Monitor.TryEnter(reportLock))
{
try
{
var delta = Stopwatch.GetTimestamp() - start;
var timePerItem = (double)delta / ourParsed;
var remaining = total - ourParsed;
var eta = (long)Math.Ceiling(remaining * timePerItem);
Console.WriteLine($"Warmup progress: {ourParsed}/{total}. ETA: {TimeSpan.FromTicks(eta)}");
nextReport = Stopwatch.GetTimestamp() + s_reportInterval;
}
finally
{
Monitor.Exit(reportLock);
}
}
}
});
var statistics = new Statistics(warmups.Take(files.Length * s_warmupCount));
using var writer = new IndentedTextWriter(Console.Out);
writer.WriteLine($"Warmup results:");
PrintStatistics(writer, statistics, static d => Duration.Format(ceil(d)));
