/// <summary>
/// Creates a snapshot of the current state of the performance counter.
/// </summary>
/// <returns>Newly created snapshot.</returns>
public CachePerformanceSnapshot Snapshot()
{
var snap = new CachePerformanceSnapshot(this.missCount, this.hitCount, this.missCountCache, this.hitCountCache, this.utxoSkipDisk)
{
Start = this.Start,
// TODO: Would it not be better for these two guys to be part of the constructor? Either implicitly or explicitly.
Taken = this.dateTimeProvider.GetUtcNow()
};
return(snap);
}
private void AddBenchStats(StringBuilder log)
{
log.AppendLine("======CachedCoinView Bench======");
DateTime now = this.dateTimeProvider.GetUtcNow();
var lastFlush = (now - this.lastCacheFlushTime).TotalMinutes;
log.AppendLine("Last flush ".PadRight(20) + Math.Round(lastFlush, 2) + " min ago (flush every " + TimeSpan.FromSeconds(this.CacheFlushTimeIntervalSeconds).TotalMinutes + " min)");
log.AppendLine("Coin cache tip ".PadRight(20) + this.blockHash.Height);
log.AppendLine("Coin store tip ".PadRight(20) + this.innerBlockHash.Height);
log.AppendLine("block store tip ".PadRight(20) + "tbd");
log.AppendLine();
log.AppendLine("Cache entries ".PadRight(20) + this.cacheCount + " items");
log.AppendLine("Dirty cache entries ".PadRight(20) + this.dirtyCacheCount + " items");
log.AppendLine("Rewind data entries ".PadRight(20) + this.rewindDataCount + " items");
var cache = this.cacheSizeBytes;
var rewind = this.rewindDataSizeBytes;
double filledPercentage = Math.Round(((cache + rewind) / (double)this.MaxCacheSizeBytes) * 100, 2);
log.AppendLine("Cache size".PadRight(20) + cache.BytesToMegaBytes() + " MB");
log.AppendLine("Rewind data size".PadRight(20) + rewind.BytesToMegaBytes() + " MB");
log.AppendLine("Total cache size".PadRight(20) + (cache + rewind).BytesToMegaBytes() + " MB / " + this.consensusSettings.MaxCoindbCacheInMB + " MB (" + filledPercentage + "%)");
CachePerformanceSnapshot snapShot = this.performanceCounter.Snapshot();
if (this.latestPerformanceSnapShot == null)
{
log.AppendLine(snapShot.ToString());
}
else
{
log.AppendLine((snapShot - this.latestPerformanceSnapShot).ToString());
}
this.latestPerformanceSnapShot = snapShot;
}