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Issue 1232833004: Update findbugs from 3.0.0 to 3.0.1. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/findbugs.git@master
Patch Set: rebase again Created 5 years, 5 months ago
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1 <html> 1 <html>
2 <head> 2 <head>
3 <title>FindBugs Performance Improvements and Regressions</title> 3 <title>FindBugs Performance Improvements and Regressions</title>
4 <link rel="stylesheet" type="text/css" href="findbugs.css"> 4 <link rel="stylesheet" type="text/css" href="findbugs.css">
5 5
6 </head> 6 </head>
7 <body> 7 <body>
8 8
9 <table width="100%"> 9 <table width="100%">
10 <tr> 10 <tr>
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36 36
37 <tr><td><a class="sidebar" href="downloads.html"><b>Downloads</b></a></td></tr> 37 <tr><td><a class="sidebar" href="downloads.html"><b>Downloads</b></a></td></tr>
38 38
39 <tr><td>&nbsp;</td></tr> 39 <tr><td>&nbsp;</td></tr>
40 40
41 <tr><td><a class="sidebar" href="http://www.cafeshops.com/findbugs"><b>FindBugs Swag</b></a></td></tr> 41 <tr><td><a class="sidebar" href="http://www.cafeshops.com/findbugs"><b>FindBugs Swag</b></a></td></tr>
42 42
43 <tr><td>&nbsp;</td></tr> 43 <tr><td>&nbsp;</td></tr>
44 44
45 <tr><td><b>Development</b></td></tr> 45 <tr><td><b>Development</b></td></tr>
46 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="http://sourceforge.net/tr acker/?group_id=96405">Open bugs</a></font></td></tr> 46 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="http://sourceforge.net/p/ findbugs/bugs/">Open bugs</a></font></td></tr>
47 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="reportingBugs.html">Repor ting bugs</a></font></td></tr> 47 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="reportingBugs.html">Repor ting bugs</a></font></td></tr>
48 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="contributing.html">Contri buting</a></font></td></tr> 48 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="contributing.html">Contri buting</a></font></td></tr>
49 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="team.html">Dev team</a></ font></td></tr> 49 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="team.html">Dev team</a></ font></td></tr>
50 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="api/index.html">API</a> < a class="sidebar" href="api/overview-summary.html">[no frames]</a></font></td></ tr> 50 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="api/index.html">API</a> < a class="sidebar" href="api/overview-summary.html">[no frames]</a></font></td></ tr>
51 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="Changes.html">Change log< /a></font></td></tr> 51 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="Changes.html">Change log< /a></font></td></tr>
52 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="http://sourceforge.net/pr ojects/findbugs">SF project page</a></font></td></tr> 52 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="http://sourceforge.net/pr ojects/findbugs">SF project page</a></font></td></tr>
53 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="http://code.google.com/p/ findbugs/source/browse/">Browse source</a></font></td></tr> 53 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="http://code.google.com/p/ findbugs/source/browse/">Browse source</a></font></td></tr>
54 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="http://code.google.com/p/ findbugs/source/list">Latest code changes</a></font></td></tr> 54 <tr><td><font size="-1">&nbsp;<a class="sidebar" href="http://code.google.com/p/ findbugs/source/list">Latest code changes</a></font></td></tr>
55 </table> 55 </table>
56 </td> 56 </td>
57 57
58 <td align="left" valign="top"> 58 <td align="left" valign="top">
59 59
60 <h1>FindBugs Performance Improvements and Regressions</h1> I did a performance check against 179 60 <h1>FindBugs Performance Improvements and Regressions</h1> I did a performance check against 179
61 benchmarks applications I regularly test against. Overall (total the total time to analyze all 179 61 benchmarks applications I regularly test against. Overall (total the total time to analyze all 179
62 benchmarks), FindBugs 2.0 gives a 9% performance improvement ove r 1.3.9. 154 of the 179 benchmarks saw 62 benchmarks), FindBugs 2.0 gives a 9% performance improvement ove r 1.3.9. 154 of the 179 benchmarks saw
63 performance improvements; 24 saw regressions. All of the benchma rks that saw regressions of more than 63 performance improvements; 24 saw regressions. All of the benchma rks that saw regressions of more than
64 10% were small benchmarks (analyzed in less than 60 seconds), wh ich makes consistent benchmarking 64 10% were small benchmarks (analyzed in less than 60 seconds), wh ich makes consistent benchmarking
65 particularly difficult. I'm working to repeat the benchmarks, se e if the results are consistent. I took 65 particularly difficult. I'm working to repeat the benchmarks, se e if the results are consistent. I took
66 a look, and couldn't find anything that stood out as being a per formance glitch in FindBugs. I haven't 66 a look, and couldn't find anything that stood out as being a per formance glitch in FindBugs. I haven't
67 yet done benchmarking with constrained memory. It is possible th at you may need to increase the heap 67 yet done benchmarking with constrained memory. It is possible th at you may need to increase the heap
68 size for FindBugs 2.0. 68 size for FindBugs 2.0.
69 69
70 <h2>Important Request</h2> 70 <h2>Important Request</h2>
71 <p> If you are seeing any significant performance regressions in FindBugs 2.0, 71 <p> If you are seeing any significant performance regressions in FindBugs 2.0,
72 I very much need your help. Please either email <a href="mailto: findbugs@cs.umd.edu">findbugs@cs.umd.edu</a> 72 I very much need your help. Please either email <a href="mailto: findbugs@cs.umd.edu">findbugs@cs.umd.edu</a>
73 or file <a href="http://sourceforge.net/tracker/?atid=614693&amp ;group_id=96405&amp;func=browse">a 73 or file <a href="http://sourceforge.net/p/findbugs/_list/tickets ?source=navbar">a
74 bug report</a>.&nbsp;with the following information from the xml file for your project (from both the 74 bug report</a>.&nbsp;with the following information from the xml file for your project (from both the
75 1.3.9 and 2.0.0 version if possible). Sending me your code or po inting me to a open source repository 75 1.3.9 and 2.0.0 version if possible). Sending me your code or po inting me to a open source repository
76 would be great, but I know that isn't feasible for a lot of proj ects. The information I'm requesting 76 would be great, but I know that isn't feasible for a lot of proj ects. The information I'm requesting
77 doesn't include any information about the code being analyzed ot her than the total size of the code 77 doesn't include any information about the code being analyzed ot her than the total size of the code
78 being analyzed and the total number of issues found at the diffe rent confidence levels. The 78 being analyzed and the total number of issues found at the diffe rent confidence levels. The
79 &lt;FindBugsSummary ... &gt; start tag. For example: <quote> <pr e> 79 &lt;FindBugsSummary ... &gt; start tag. For example: <quote> <pr e>
80 &lt;FindBugsSummary timestamp="Tue, 30 Dec 2008 21:29:52 -0500" 80 &lt;FindBugsSummary timestamp="Tue, 30 Dec 2008 21:29:52 -0500"
81 total_classes="206" referenced_classes="325" total_bugs="72" total_size="7 654" num_packages="21" 81 total_classes="206" referenced_classes="325" total_bugs="72" total_size="7 654" num_packages="21"
82 vm_version="20.4-b02-402" cpu_seconds="62.52" clock_seconds="22.01" 82 vm_version="20.4-b02-402" cpu_seconds="62.52" clock_seconds="22.01"
83 peak_mbytes="112.21" alloc_mbytes="1683.38" gc_seconds="1.19" 83 peak_mbytes="112.21" alloc_mbytes="1683.38" gc_seconds="1.19"
84 priority_3="56" priority_2="14" priority_1="2"&gt; 84 priority_3="56" priority_2="14" priority_1="2"&gt;
85 </pre> </quote> The &lt;FindBugsProfile&gt;...&lt;/FindBugsProfile&gt; element. For example: <quote> 85 </pre> </quote> The &lt;FindBugsProfile&gt;...&lt;/FindBugsProfile&gt; element. For example: <quote>
86 <pre> 86 <pre>
87 &lt;FindBugsProfile&gt; 87 &lt;FindBugsProfile&gt;
88 &lt;ClassProfile name="edu.umd.cs.findbugs.detect.IncompatMask" totalMilli seconds="11" 88 &lt;ClassProfile name="edu.umd.cs.findbugs.detect.IncompatMask" totalMilli seconds="11"
89 invocations="206" avgMicrosecondsPerInvocation="55" maxMicrosecondsPerIn vocation="475" 89 invocations="206" avgMicrosecondsPerInvocation="55" maxMicrosecondsPerIn vocation="475"
90 standardDeviationMircosecondsPerInvocation="75"/&gt; 90 standardDeviationMircosecondsPerInvocation="75"/&gt;
91 &lt;ClassProfile name="edu.umd.cs.findbugs.detect.FindFinalizeInvocations" totalMilliseconds="11" 91 &lt;ClassProfile name="edu.umd.cs.findbugs.detect.FindFinalizeInvocations" totalMilliseconds="11"
92 invocations="206" avgMicrosecondsPerInvocation="55" maxMicrosecondsPerIn vocation="402" 92 invocations="206" avgMicrosecondsPerInvocation="55" maxMicrosecondsPerIn vocation="402"
93 standardDeviationMircosecondsPerInvocation="69"/&gt; 93 standardDeviationMircosecondsPerInvocation="69"/&gt;
94 &lt;ClassProfile name="edu.umd.cs.findbugs.classfile.engine.bcel.LockDataf lowFactory" totalMilliseconds="11" 94 &lt;ClassProfile name="edu.umd.cs.findbugs.classfile.engine.bcel.LockDataf lowFactory" totalMilliseconds="11"
95 invocations="23" avgMicrosecondsPerInvocation="515" maxMicrosecondsPerIn vocation="2637" 95 invocations="23" avgMicrosecondsPerInvocation="515" maxMicrosecondsPerIn vocation="2637"
96 standardDeviationMircosecondsPerInvocation="639"/&gt; 96 standardDeviationMircosecondsPerInvocation="639"/&gt;
97 ... 97 ...
98 &lt;/FindBugsProfile&gt; 98 &lt;/FindBugsProfile&gt;
99 </pre> </quote> 99 </pre> </quote>
100 <hr> <p> 100 <hr> <p>
101 <script language="JavaScript" type="text/javascript"> 101 <script language="JavaScript" type="text/javascript">
102 <!---//hide script from old browsers 102 <!---//hide script from old browsers
103 document.write( "Last updated "+ document.lastModified + "." ); 103 document.write( "Last updated "+ document.lastModified + "." );
104 //end hiding contents ---> 104 //end hiding contents --->
105 </script> 105 </script>
106 <p> Send comments to <a class="sidebar" href="mailto:findbugs@cs.umd.edu">findbu gs@cs.umd.edu</a> 106 <p> Send comments to <a class="sidebar" href="mailto:findbugs@cs.umd.edu">findbu gs@cs.umd.edu</a>
107 <p> 107 <p>
108 <A href="http://sourceforge.net"><IMG src="http://sourceforge.net/sflogo.php?gro up_id=96405&amp;type=5" width="210" height="62" border="0" alt="SourceForge.net Logo" /></A> 108 <a href="http://sourceforge.net/projects/findbugs/"><img src="http://sourceforge .net/sflogo.php?group_id=96405&amp;type=5" width="210" height="62" border="0" al t="FindBugs on SourceForge.net" /></a>
109 109
110 </td> 110 </td>
111 111
112 </tr> 112 </tr>
113 </table> 113 </table>
114 114
115 </body> 115 </body>
116 </html> 116 </html>
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