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author | Melanie Thielker | 2014-06-21 00:39:55 +0200 |
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committer | Melanie Thielker | 2014-06-21 00:39:55 +0200 |
commit | 159fcbf150b7da0e229b29aa7b94793484543d12 (patch) | |
tree | b8c0ff3b4c758a3fba8315b556c923ef4c02a185 /OpenSim/Framework/Monitoring/Stats/EventHistogram.cs | |
parent | Merge commit '68c8633ba18f0a11cfc0ed04d1d0c7c59e6cec76' (diff) | |
parent | Merge branch 'master' into careminster (diff) | |
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Merge branch 'master' of ssh://3dhosting.de/var/git/careminster
Conflicts:
OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
Diffstat (limited to 'OpenSim/Framework/Monitoring/Stats/EventHistogram.cs')
-rwxr-xr-x | OpenSim/Framework/Monitoring/Stats/EventHistogram.cs | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/OpenSim/Framework/Monitoring/Stats/EventHistogram.cs b/OpenSim/Framework/Monitoring/Stats/EventHistogram.cs new file mode 100755 index 0000000..f51f322 --- /dev/null +++ b/OpenSim/Framework/Monitoring/Stats/EventHistogram.cs | |||
@@ -0,0 +1,173 @@ | |||
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 | |||
28 | using System; | ||
29 | using System.Collections.Generic; | ||
30 | using System.Linq; | ||
31 | using System.Text; | ||
32 | |||
33 | using OpenMetaverse.StructuredData; | ||
34 | |||
35 | namespace 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) | ||
41 | public 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 | public OSDMap GetHistogramAsOSDMap() | ||
129 | { | ||
130 | OSDMap ret = new OSDMap(); | ||
131 | |||
132 | ret.Add("Buckets", OSD.FromInteger(m_numBuckets)); | ||
133 | ret.Add("BucketMilliseconds", OSD.FromInteger(m_bucketMilliseconds)); | ||
134 | ret.Add("TotalMilliseconds", OSD.FromInteger(m_totalHistogramMilliseconds)); | ||
135 | |||
136 | // Compute a number for the first bucket in the histogram. | ||
137 | // This will allow readers to know how this histogram relates to any previously read histogram. | ||
138 | int baseBucketNum = (m_timeBase / m_bucketMilliseconds) + m_lastBucket + 1; | ||
139 | ret.Add("BaseNumber", OSD.FromInteger(baseBucketNum)); | ||
140 | |||
141 | ret.Add("Values", GetHistogramAsOSDArray()); | ||
142 | |||
143 | return ret; | ||
144 | } | ||
145 | // Get a copy of the current histogram | ||
146 | public OSDArray GetHistogramAsOSDArray() | ||
147 | { | ||
148 | OSDArray ret = new OSDArray(m_numBuckets); | ||
149 | lock (histoLock) | ||
150 | { | ||
151 | int indx = m_lastBucket + 1; | ||
152 | for (int ii = 0; ii < m_numBuckets; ii++, indx++) | ||
153 | { | ||
154 | if (indx >= m_numBuckets) | ||
155 | indx = 0; | ||
156 | ret[ii] = OSD.FromLong(m_histogram[indx]); | ||
157 | } | ||
158 | } | ||
159 | return ret; | ||
160 | } | ||
161 | |||
162 | // Zero out the histogram | ||
163 | public void Zero() | ||
164 | { | ||
165 | lock (histoLock) | ||
166 | { | ||
167 | for (int ii = 0; ii < m_numBuckets; ii++) | ||
168 | m_histogram[ii] = 0; | ||
169 | } | ||
170 | } | ||
171 | } | ||
172 | |||
173 | } | ||