diff --git a/OpenSim/Framework/Monitoring/Stats/CounterStat.cs b/OpenSim/Framework/Monitoring/Stats/CounterStat.cs new file mode 100755 index 0000000000..d81f1828e6 --- /dev/null +++ b/OpenSim/Framework/Monitoring/Stats/CounterStat.cs @@ -0,0 +1,211 @@ +/* + * Copyright (c) Contributors, http://opensimulator.org/ + * See CONTRIBUTORS.TXT for a full list of copyright holders. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the OpenSimulator Project nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +using System; +using System.Collections.Generic; +using System.Linq; +using System.Text; + +using OpenMetaverse.StructuredData; + +namespace OpenSim.Framework.Monitoring +{ +// Create a time histogram of events. The histogram is built in a wrap-around +// array of equally distributed buckets. +// For instance, a minute long histogram of second sized buckets would be: +// new EventHistogram(60, 1000) +public class EventHistogram +{ + private int m_timeBase; + private int m_numBuckets; + private int m_bucketMilliseconds; + private int m_lastBucket; + private int m_totalHistogramMilliseconds; + private long[] m_histogram; + private object histoLock = new object(); + + public EventHistogram(int numberOfBuckets, int millisecondsPerBucket) + { + m_numBuckets = numberOfBuckets; + m_bucketMilliseconds = millisecondsPerBucket; + m_totalHistogramMilliseconds = m_numBuckets * m_bucketMilliseconds; + + m_histogram = new long[m_numBuckets]; + Zero(); + m_lastBucket = 0; + m_timeBase = Util.EnvironmentTickCount(); + } + + public void Event() + { + this.Event(1); + } + + // Record an event at time 'now' in the histogram. + public void Event(int cnt) + { + lock (histoLock) + { + // The time as displaced from the base of the histogram + int bucketTime = Util.EnvironmentTickCountSubtract(m_timeBase); + + // If more than the total time of the histogram, we just start over + if (bucketTime > m_totalHistogramMilliseconds) + { + Zero(); + m_lastBucket = 0; + m_timeBase = Util.EnvironmentTickCount(); + } + else + { + // To which bucket should we add this event? + int bucket = bucketTime / m_bucketMilliseconds; + + // Advance m_lastBucket to the new bucket. Zero any buckets skipped over. + while (bucket != m_lastBucket) + { + // Zero from just after the last bucket to the new bucket or the end + for (int jj = m_lastBucket + 1; jj <= Math.Min(bucket, m_numBuckets - 1); jj++) + { + m_histogram[jj] = 0; + } + m_lastBucket = bucket; + // If the new bucket is off the end, wrap around to the beginning + if (bucket > m_numBuckets) + { + bucket -= m_numBuckets; + m_lastBucket = 0; + m_histogram[m_lastBucket] = 0; + m_timeBase += m_totalHistogramMilliseconds; + } + } + } + m_histogram[m_lastBucket] += cnt; + } + } + + // Get a copy of the current histogram + public long[] GetHistogram() + { + long[] ret = new long[m_numBuckets]; + lock (histoLock) + { + int indx = m_lastBucket + 1; + for (int ii = 0; ii < m_numBuckets; ii++, indx++) + { + if (indx >= m_numBuckets) + indx = 0; + ret[ii] = m_histogram[indx]; + } + } + return ret; + } + + // Get a copy of the current histogram + public OSDArray GetHistogramAsOSDArray() + { + OSDArray ret = new OSDArray(m_numBuckets); + lock (histoLock) + { + int indx = m_lastBucket + 1; + for (int ii = 0; ii < m_numBuckets; ii++, indx++) + { + if (indx >= m_numBuckets) + indx = 0; + ret[ii] = OSD.FromLong(m_histogram[indx]); + } + } + return ret; + } + + // Zero out the histogram + public void Zero() + { + lock (histoLock) + { + for (int ii = 0; ii < m_numBuckets; ii++) + m_histogram[ii] = 0; + } + } +} + +// A statistic that wraps a counter. +// Built this way mostly so histograms and history can be created. +public class CounterStat : Stat +{ + private SortedDictionary m_histograms; + private object counterLock = new object(); + + public CounterStat( + string shortName, + string name, + string description, + string unitName, + string category, + string container, + StatVerbosity verbosity) + : base(shortName, name, description, unitName, category, container, StatType.Push, null, verbosity) + { + m_histograms = new SortedDictionary(); + } + + // Histograms are presumably added at intialization time and the list does not change thereafter. + // Thus no locking of the histogram list. + public void AddHistogram(string histoName, EventHistogram histo) + { + m_histograms.Add(histoName, histo); + } + + public delegate void ProcessHistogram(string name, EventHistogram histo); + public void ForEachHistogram(ProcessHistogram process) + { + foreach (KeyValuePair kvp in m_histograms) + { + process(kvp.Key, kvp.Value); + } + } + + public void Event() + { + this.Event(1); + } + + // Count the underlying counter. + public void Event(int cnt) + { + lock (counterLock) + { + base.Value += cnt; + + foreach (EventHistogram histo in m_histograms.Values) + { + histo.Event(cnt); + } + } + } +} +} diff --git a/OpenSim/Framework/Monitoring/Stats/Stat.cs b/OpenSim/Framework/Monitoring/Stats/Stat.cs index f91251b6ea..fccc4601ca 100644 --- a/OpenSim/Framework/Monitoring/Stats/Stat.cs +++ b/OpenSim/Framework/Monitoring/Stats/Stat.cs @@ -34,7 +34,7 @@ namespace OpenSim.Framework.Monitoring /// /// Holds individual statistic details /// - public class Stat + public class Stat : IDisposable { /// /// Category of this stat (e.g. cache, scene, etc). @@ -181,6 +181,12 @@ namespace OpenSim.Framework.Monitoring Verbosity = verbosity; } + // IDisposable.Dispose() + public virtual void Dispose() + { + return; + } + /// /// Record a value in the sample set. ///