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Stats treaking. Update ToOSDMap for Stat and PercentageStat to return

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all the various numbers that have been added to the console output.
Break out EventHistogram from CounterStat.
This commit is contained in:
Robert Adams
2013-08-10 09:09:52 -07:00
parent 23ca1f859e
commit 216f5afe54
4 changed files with 235 additions and 150 deletions
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150
OpenSim/Framework/Monitoring/Stats/CounterStat.cs
View File

@@ -34,142 +34,6 @@ 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;
}
public OSDMap GetHistogramAsOSDMap()
{
OSDMap ret = new OSDMap();
ret.Add("Buckets", OSD.FromInteger(m_numBuckets));
ret.Add("BucketMilliseconds", OSD.FromInteger(m_bucketMilliseconds));
ret.Add("TotalMilliseconds", OSD.FromInteger(m_totalHistogramMilliseconds));
// Compute a number for the first bucket in the histogram.
// This will allow readers to know how this histogram relates to any previously read histogram.
int baseBucketNum = (m_timeBase / m_bucketMilliseconds) + m_lastBucket + 1;
ret.Add("BaseNumber", OSD.FromInteger(baseBucketNum));
ret.Add("Values", GetHistogramAsOSDArray());
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
@@ -236,12 +100,18 @@ public class CounterStat : Stat
// If there are any histograms, add a new field that is an array of histograms as OSDMaps
if (m_histograms.Count > 0)
{
OSDArray histos = new OSDArray();
foreach (EventHistogram histo in m_histograms.Values)
lock (counterLock)
{
histos.Add(histo.GetHistogramAsOSDMap());
if (m_histograms.Count > 0)
{
OSDArray histos = new OSDArray();
foreach (EventHistogram histo in m_histograms.Values)
{
histos.Add(histo.GetHistogramAsOSDMap());
}
map.Add("Histograms", histos);
}
}
map.Add("Histograms", histos);
}
return map;
}

173
OpenSim/Framework/Monitoring/Stats/EventHistogram.cs Executable file
View File

@@ -0,0 +1,173 @@
/*
* 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;
}
public OSDMap GetHistogramAsOSDMap()
{
OSDMap ret = new OSDMap();
ret.Add("Buckets", OSD.FromInteger(m_numBuckets));
ret.Add("BucketMilliseconds", OSD.FromInteger(m_bucketMilliseconds));
ret.Add("TotalMilliseconds", OSD.FromInteger(m_totalHistogramMilliseconds));
// Compute a number for the first bucket in the histogram.
// This will allow readers to know how this histogram relates to any previously read histogram.
int baseBucketNum = (m_timeBase / m_bucketMilliseconds) + m_lastBucket + 1;
ret.Add("BaseNumber", OSD.FromInteger(baseBucketNum));
ret.Add("Values", GetHistogramAsOSDArray());
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;
}
}
}
}

16
OpenSim/Framework/Monitoring/Stats/PercentageStat.cs
View File

@@ -29,6 +29,8 @@ using System;
using System.Collections.Generic;
using System.Text;
using OpenMetaverse.StructuredData;
namespace OpenSim.Framework.Monitoring
{
public class PercentageStat : Stat
@@ -84,5 +86,19 @@ namespace OpenSim.Framework.Monitoring
return sb.ToString();
}
// PercentageStat is a basic stat plus percent calc
public override OSDMap ToOSDMap()
{
// Get the foundational instance
OSDMap map = base.ToOSDMap();
map["StatType"] = "PercentageStat";
map.Add("Antecedent", OSD.FromLong(Antecedent));
map.Add("Consequent", OSD.FromLong(Consequent));
return map;
}
}
}

46
OpenSim/Framework/Monitoring/Stats/Stat.cs
View File

@@ -241,6 +241,8 @@ namespace OpenSim.Framework.Monitoring
public virtual OSDMap ToOSDMap()
{
OSDMap ret = new OSDMap();
ret.Add("StatType", "Stat"); // used by overloading classes to denote type of stat
ret.Add("Category", OSD.FromString(Category));
ret.Add("Container", OSD.FromString(Container));
ret.Add("ShortName", OSD.FromString(ShortName));
@@ -248,26 +250,36 @@ namespace OpenSim.Framework.Monitoring
ret.Add("Description", OSD.FromString(Description));
ret.Add("UnitName", OSD.FromString(UnitName));
ret.Add("Value", OSD.FromReal(Value));
ret.Add("StatType", "Stat"); // used by overloading classes to denote type of stat
double lastChangeOverTime, averageChangeOverTime;
if (ComputeMeasuresOfInterest(out lastChangeOverTime, out averageChangeOverTime))
{
ret.Add("LastChangeOverTime", OSD.FromReal(lastChangeOverTime));
ret.Add("AverageChangeOverTime", OSD.FromReal(averageChangeOverTime));
}
return ret;
}
protected void AppendMeasuresOfInterest(StringBuilder sb)
// Compute the averages over time and return same.
// Return 'true' if averages were actually computed. 'false' if no average info.
public bool ComputeMeasuresOfInterest(out double lastChangeOverTime, out double averageChangeOverTime)
{
if ((MeasuresOfInterest & MeasuresOfInterest.AverageChangeOverTime)
== MeasuresOfInterest.AverageChangeOverTime)
bool ret = false;
lastChangeOverTime = 0;
averageChangeOverTime = 0;
if ((MeasuresOfInterest & MeasuresOfInterest.AverageChangeOverTime) == MeasuresOfInterest.AverageChangeOverTime)
{
double totalChange = 0;
double lastChangeOverTime = 0;
double? penultimateSample = null;
double? lastSample = null;
lock (m_samples)
{
// m_log.DebugFormat(
// "[STAT]: Samples for {0} are {1}",
// Name, string.Join(",", m_samples.Select(s => s.ToString()).ToArray()));
// m_log.DebugFormat(
// "[STAT]: Samples for {0} are {1}",
// Name, string.Join(",", m_samples.Select(s => s.ToString()).ToArray()));
foreach (double s in m_samples)
{
@@ -280,13 +292,27 @@ namespace OpenSim.Framework.Monitoring
}
if (lastSample != null && penultimateSample != null)
lastChangeOverTime
{
lastChangeOverTime
= ((double)lastSample - (double)penultimateSample) / (Watchdog.WATCHDOG_INTERVAL_MS / 1000);
}
int divisor = m_samples.Count <= 1 ? 1 : m_samples.Count - 1;
double averageChangeOverTime = totalChange / divisor / (Watchdog.WATCHDOG_INTERVAL_MS / 1000);
averageChangeOverTime = totalChange / divisor / (Watchdog.WATCHDOG_INTERVAL_MS / 1000);
ret = true;
}
return ret;
}
protected void AppendMeasuresOfInterest(StringBuilder sb)
{
double lastChangeOverTime = 0;
double averageChangeOverTime = 0;
if (ComputeMeasuresOfInterest(out lastChangeOverTime, out averageChangeOverTime))
{
sb.AppendFormat(
", {0:0.##}{1}/s, {2:0.##}{3}/s",
lastChangeOverTime,