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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
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@@ -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;
}