Mercurial > hg > blitz_condensed
annotate src/org/dancres/blitz/stats/OpStat.java @ 34:6f68e94c1fb8 default tip
Add CondensedStats monitoring utility, equivalent to vmstat
author | Dominic Cleal <dominic-cleal@cdo2.com> |
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date | Thu, 05 Aug 2010 11:07:25 +0100 |
parents | 3dc0c5604566 |
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1 package org.dancres.blitz.stats; |
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2 |
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3 /** |
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4 A class which tracks the number of times a particular operation has been |
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5 performed against a particular type. |
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6 */ |
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7 public class OpStat implements Stat, StatGenerator { |
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8 |
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9 public static final int TAKES = 1; |
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10 public static final int WRITES = 2; |
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11 public static final int READS = 3; |
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12 |
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13 private String theType; |
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14 private long theCount; |
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15 private int theOp; |
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16 |
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17 private long theId = StatGenerator.UNSET_ID; |
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18 |
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19 public OpStat(String aType, int anOp) { |
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20 theType = aType; |
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21 theOp = anOp; |
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22 } |
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23 |
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24 private OpStat(long anId, String aType, int anOp, long aCount) { |
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25 theId = anId; |
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26 theType = aType; |
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27 theOp = anOp; |
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28 theCount = aCount; |
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29 } |
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30 |
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31 public void setId(long anId) { |
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32 theId = anId; |
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33 } |
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34 |
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35 public long getId() { |
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36 return theId; |
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37 } |
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38 |
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39 public String getType() { |
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40 return theType; |
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41 } |
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42 |
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43 public int getOp() { |
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44 return theOp; |
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45 } |
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46 |
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47 public long getCount() { |
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48 return theCount; |
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49 } |
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50 |
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51 public synchronized void incCount() { |
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52 ++theCount; |
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53 } |
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54 |
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55 public synchronized Stat generate() { |
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56 OpStat myStat = new OpStat(theId, theType, theOp, theCount); |
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57 |
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58 return myStat; |
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59 } |
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60 |
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61 public String getOpTypeAsString() { |
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62 switch(theOp) { |
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63 case TAKES : { |
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64 return "Takes"; |
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65 } |
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66 |
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67 case WRITES : { |
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68 return "Writes"; |
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69 } |
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70 |
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71 case READS : { |
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72 return "Reads"; |
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73 } |
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74 |
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75 default : { |
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76 return "Unknown"; |
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77 } |
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78 } |
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79 } |
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80 |
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81 public String toString() { |
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82 String myOp = getOpTypeAsString(); |
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83 |
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84 return myOp + ":" + theType + " = " + theCount + " (" + theId + ")"; |
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85 } |
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86 } |