Sonar - JavaSquidSensor非常慢

Question

使用SonarQube 5.6.1，几乎激活了Java Analyzer中的每个可用规则（v4.2 - 质量简介is attached here），构建和分析了一个大型项目（~2M LoC），用于运行在不到3小时内，现在需要超过12小时（！）。分析日志显示以下内容：

[INFO]  ======== Profiling of total execution: 647min 3s ========
[INFO] 
[INFO]  * Module execution time breakdown: 
[INFO]    o Xxx 1.15.4-PCF execution time:                      642min 42s (99%)
[INFO]    o Yyy 1.15.4-PCF execution time:                 3min 58s (0%)
[INFO]    o Zzz 1.15.4-PCF execution time:                     20s (0%)
[INFO]    o Xxxx 1.15.4-PCF execution time:                       395ms (0%)
[INFO]    o Yyyy 1.15.4-PCF execution time:       252ms (0%)
[INFO]    o Zzzz execution time:                  244ms (0%)
[INFO] 
[INFO]  * Sensors execution time:                                  642min 48s (99%)
[INFO]  * Publish report execution time:                             3min 53s (0%)
[INFO]  * Index filesystem execution time:                                13s (0%)
[INFO]  * Computing duplications execution time:                           5s (0%)
[INFO]  * Init issue exclusions execution time:                          26ms (0%)
[INFO]  * Clean memory execution time:                                   18ms (0%)
[INFO]  * Initializers execution time:                                    2ms (0%)
[INFO]  * Post-Jobs execution time:                                       0ms (0%)
[INFO] 
[INFO]  * Sensors execution time breakdown:                        642min 48s
[INFO]    o JavaSquidSensor:                                       571min 45s (88%)
[INFO]    o SCM Sensor:                                              52min 6s (8%)
[INFO]    o FindBugs Sensor:                                         16min 4s (2%)
[INFO]    o CPD Block Indexer:                                            47s (0%)
[INFO]    o JavaScript Squid Sensor:                                      34s (0%)
[INFO]    o JaCoCoSensor:                                                 25s (0%)
[INFO]    o JaCoCoOverallSensor:                                          20s (0%)
[INFO]    o Code Colorizer Sensor:                                        15s (0%)
[INFO]    o JaCoCoItSensor:                                               11s (0%)
[INFO]    o Zero Coverage Sensor:                                          3s (0%)
[INFO] 
[INFO]  ======== End of profiling of total execution ========

显然，在JavaSquidSensor中花费大约10小时远远不能接受。

我们最近从SonarQube 5.4到5.6.1进行了升级。 Java插件也已升级，但我不记得升级前它是哪个版本。从那以后，我可以看到性能的显着下降。

如何追踪导致该规则的特定规则（除了普通的二分法......没有时间花在此上）

在较小的分析中使用分析器，我无法识别瓶颈 - 实现似乎非常递归，大部分时间都花在访问者类中 - 请参阅附件截图。

非常感谢任何帮助：）