/// <summary> Compute a percentile from the underlying rolling buckets of values.
/// <p>
/// For performance reasons it maintains a single snapshot of the sorted values from all buckets that is re-generated each time the bucket rotates.
/// </p>
/// This means that if a bucket is 5000ms, then this method will re-compute a percentile at most once every 5000ms.
///
/// <param name="percentile">value such as 99 (99th percentile), 99.5 (99.5th percentile), 50 (median, 50th percentile) to compute and retrieve percentile from rolling buckets.</param>
/// <returns>percentile value</returns>
/// </summary>
public int GetPercentile(double percentile)
{
if (!this.enabled.Value)
{
return(-1);
}
// fetch the current snapshot
return(CurrentPercentileSnapshot.GetPercentile(percentile));
}
/**
* Compute a percentile from the underlying rolling buckets of values.
* <p>
* For performance reasons it maintains a single snapshot of the sorted values from all buckets that is re-generated each time the bucket rotates.
* <p>
* This means that if a bucket is 5000ms, then this method will re-compute a percentile at most once every 5000ms.
*
* @param percentile
* value such as 99 (99th percentile), 99.5 (99.5th percentile), 50 (median, 50th percentile) to compute and retrieve percentile from rolling buckets.
* @return int percentile value
*/
public int GetPercentile(double percentile)
{
/* no-op if disabled */
if (!enabled)
{
return(-1);
}
// force logic to move buckets forward in case other requests aren't making it happen
GetCurrentBucket();
// fetch the current snapshot
return(CurrentPercentileSnapshot.GetPercentile(percentile));
}
