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-rwxr-xr-xOpenSim/Framework/Monitoring/Stats/CounterStat.cs211
-rw-r--r--OpenSim/Framework/Monitoring/Stats/Stat.cs8
2 files changed, 218 insertions, 1 deletions
diff --git a/OpenSim/Framework/Monitoring/Stats/CounterStat.cs b/OpenSim/Framework/Monitoring/Stats/CounterStat.cs
new file mode 100755
index 0000000..d81f182
--- /dev/null
+++ b/OpenSim/Framework/Monitoring/Stats/CounterStat.cs
@@ -0,0 +1,211 @@
1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System;
29using System.Collections.Generic;
30using System.Linq;
31using System.Text;
32
33using OpenMetaverse.StructuredData;
34
35namespace OpenSim.Framework.Monitoring
36{
37// Create a time histogram of events. The histogram is built in a wrap-around
38// array of equally distributed buckets.
39// For instance, a minute long histogram of second sized buckets would be:
40// new EventHistogram(60, 1000)
41public class EventHistogram
42{
43 private int m_timeBase;
44 private int m_numBuckets;
45 private int m_bucketMilliseconds;
46 private int m_lastBucket;
47 private int m_totalHistogramMilliseconds;
48 private long[] m_histogram;
49 private object histoLock = new object();
50
51 public EventHistogram(int numberOfBuckets, int millisecondsPerBucket)
52 {
53 m_numBuckets = numberOfBuckets;
54 m_bucketMilliseconds = millisecondsPerBucket;
55 m_totalHistogramMilliseconds = m_numBuckets * m_bucketMilliseconds;
56
57 m_histogram = new long[m_numBuckets];
58 Zero();
59 m_lastBucket = 0;
60 m_timeBase = Util.EnvironmentTickCount();
61 }
62
63 public void Event()
64 {
65 this.Event(1);
66 }
67
68 // Record an event at time 'now' in the histogram.
69 public void Event(int cnt)
70 {
71 lock (histoLock)
72 {
73 // The time as displaced from the base of the histogram
74 int bucketTime = Util.EnvironmentTickCountSubtract(m_timeBase);
75
76 // If more than the total time of the histogram, we just start over
77 if (bucketTime > m_totalHistogramMilliseconds)
78 {
79 Zero();
80 m_lastBucket = 0;
81 m_timeBase = Util.EnvironmentTickCount();
82 }
83 else
84 {
85 // To which bucket should we add this event?
86 int bucket = bucketTime / m_bucketMilliseconds;
87
88 // Advance m_lastBucket to the new bucket. Zero any buckets skipped over.
89 while (bucket != m_lastBucket)
90 {
91 // Zero from just after the last bucket to the new bucket or the end
92 for (int jj = m_lastBucket + 1; jj <= Math.Min(bucket, m_numBuckets - 1); jj++)
93 {
94 m_histogram[jj] = 0;
95 }
96 m_lastBucket = bucket;
97 // If the new bucket is off the end, wrap around to the beginning
98 if (bucket > m_numBuckets)
99 {
100 bucket -= m_numBuckets;
101 m_lastBucket = 0;
102 m_histogram[m_lastBucket] = 0;
103 m_timeBase += m_totalHistogramMilliseconds;
104 }
105 }
106 }
107 m_histogram[m_lastBucket] += cnt;
108 }
109 }
110
111 // Get a copy of the current histogram
112 public long[] GetHistogram()
113 {
114 long[] ret = new long[m_numBuckets];
115 lock (histoLock)
116 {
117 int indx = m_lastBucket + 1;
118 for (int ii = 0; ii < m_numBuckets; ii++, indx++)
119 {
120 if (indx >= m_numBuckets)
121 indx = 0;
122 ret[ii] = m_histogram[indx];
123 }
124 }
125 return ret;
126 }
127
128 // Get a copy of the current histogram
129 public OSDArray GetHistogramAsOSDArray()
130 {
131 OSDArray ret = new OSDArray(m_numBuckets);
132 lock (histoLock)
133 {
134 int indx = m_lastBucket + 1;
135 for (int ii = 0; ii < m_numBuckets; ii++, indx++)
136 {
137 if (indx >= m_numBuckets)
138 indx = 0;
139 ret[ii] = OSD.FromLong(m_histogram[indx]);
140 }
141 }
142 return ret;
143 }
144
145 // Zero out the histogram
146 public void Zero()
147 {
148 lock (histoLock)
149 {
150 for (int ii = 0; ii < m_numBuckets; ii++)
151 m_histogram[ii] = 0;
152 }
153 }
154}
155
156// A statistic that wraps a counter.
157// Built this way mostly so histograms and history can be created.
158public class CounterStat : Stat
159{
160 private SortedDictionary<string, EventHistogram> m_histograms;
161 private object counterLock = new object();
162
163 public CounterStat(
164 string shortName,
165 string name,
166 string description,
167 string unitName,
168 string category,
169 string container,
170 StatVerbosity verbosity)
171 : base(shortName, name, description, unitName, category, container, StatType.Push, null, verbosity)
172 {
173 m_histograms = new SortedDictionary<string, EventHistogram>();
174 }
175
176 // Histograms are presumably added at intialization time and the list does not change thereafter.
177 // Thus no locking of the histogram list.
178 public void AddHistogram(string histoName, EventHistogram histo)
179 {
180 m_histograms.Add(histoName, histo);
181 }
182
183 public delegate void ProcessHistogram(string name, EventHistogram histo);
184 public void ForEachHistogram(ProcessHistogram process)
185 {
186 foreach (KeyValuePair<string, EventHistogram> kvp in m_histograms)
187 {
188 process(kvp.Key, kvp.Value);
189 }
190 }
191
192 public void Event()
193 {
194 this.Event(1);
195 }
196
197 // Count the underlying counter.
198 public void Event(int cnt)
199 {
200 lock (counterLock)
201 {
202 base.Value += cnt;
203
204 foreach (EventHistogram histo in m_histograms.Values)
205 {
206 histo.Event(cnt);
207 }
208 }
209 }
210}
211}
diff --git a/OpenSim/Framework/Monitoring/Stats/Stat.cs b/OpenSim/Framework/Monitoring/Stats/Stat.cs
index f91251b..fccc460 100644
--- a/OpenSim/Framework/Monitoring/Stats/Stat.cs
+++ b/OpenSim/Framework/Monitoring/Stats/Stat.cs
@@ -34,7 +34,7 @@ namespace OpenSim.Framework.Monitoring
34 /// <summary> 34 /// <summary>
35 /// Holds individual statistic details 35 /// Holds individual statistic details
36 /// </summary> 36 /// </summary>
37 public class Stat 37 public class Stat : IDisposable
38 { 38 {
39 /// <summary> 39 /// <summary>
40 /// Category of this stat (e.g. cache, scene, etc). 40 /// Category of this stat (e.g. cache, scene, etc).
@@ -181,6 +181,12 @@ namespace OpenSim.Framework.Monitoring
181 Verbosity = verbosity; 181 Verbosity = verbosity;
182 } 182 }
183 183
184 // IDisposable.Dispose()
185 public virtual void Dispose()
186 {
187 return;
188 }
189
184 /// <summary> 190 /// <summary>
185 /// Record a value in the sample set. 191 /// Record a value in the sample set.
186 /// </summary> 192 /// </summary>
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