Known issues related to performance

Java

• HtmlDocumentBuilder : concatenation of strings instead of using String.format seems to improve time it takes to parse the document
• XmlRpcClient : use the XmlRpcClientLite if possible
• XmlRpcClient : create one instance (lazy init) (GreenPepperRepository, AtlassianRepository)
• DocumentBuilder : add a new method accepting the String html content (AtlassianRepository is creating a StringReader(content))

.Net

As seen in following screenshots, the execution time seems divided in two parts :

1. Parsing the Html document
2. Executing the specification

Then some issues where detected :

• HtmlDocumentBuilder : regex are re-compiled each time needed (see method Compile(string pattern))
  One test maid, was to "cache" the differents Regex object used in document to prevent multiple re-instanciation of same Regex.
  The test has improved performance of ~15-20% here is the code that was used in test :

   private Regex Compile(string pattern)
          {
              Regex regex;
              if (knownRegexPattern.ContainsKey(pattern))
              {
                  regex = (Regex) knownRegexPattern[pattern];
              }else
              {
                  regex = new Regex(pattern);
                  knownRegexPattern.Add(pattern, regex);
              }
              return regex;
          }
  

  This code has not been commited.

• GreenPepperRepository : IXmlRpcGreenPepperRepository GetProxy(string methodName) seems to take lot of cpu time first time it used.

Related to Jira task GP-737

Benchmark result on GreenPepper Core .NET :

For FileRepository and specification http://wiki.octopusnetwork.org/display/OPUS/Declining+rate+loans+with+exotic+instalments

Here is the command line :

GreenPepper.exe  -a "C:\dev\octo-fev-09\octopus\Src\Octopus.Fixture\bin\Debug\Octopus.Fixture.dll"  -l fr-FR -f Octopus.Fixture.CoreDomain.OGreenPepper.OctopusSUD "C:\Users\lcobos\AppData\Local\Temp\Confluence_OPUS_Declining rate loans with exotic instalments_specification.html" "C:\Users\lcobos\AppData\Local\Temp\Confluence_OPUS_Declining rate loans with exotic instalments_report.xml" --xml

Result : (dotnet profiler result source are here)

For GreenPepperRepository and specification http://wiki.octopusnetwork.org/display/OPUS/Charge+interest+during+gracePeriod

Here is the command line :

GreenPepper.exe "Confluence-OPUS/Charge interest during gracePeriod" -o GreenPepperReports -f "Octopus.Fixture.CoreDomain.OGreenPepper.OctopusSUD" -r "Greenpepper.Repositories.GreenPepperRepository;http://wiki.octopusnetwork.org/rpc/xmlrpc?handler=greenpepper1&sut=Octopus&includeStyle=false&implemented=true#OCTOPUS" -a "C:\dev\octo-fev-09\octopus\Src\Octopus.Fixture\bin\Debug\Octopus.Fixture.dll;GreenPepper.Core.dll;GreenPepper.Extensions.dll"

Result : (dotnet profiler result source are here)

For GreenPepperRepository and suite of specifications http://wiki.octopusnetwork.org/display/OPUS/

Here is the command line :
(profiling has been stopped after three specifications executions)

GreenPepper.exe "Confluence-OPUS" -o GreenPepperReports -f "Octopus.Fixture.CoreDomain.OGreenPepper.OctopusSUD" -r "Greenpepper.Repositories.GreenPepperRepository;http://wiki.octopusnetwork.org/rpc/xmlrpc?handler=greenpepper1&sut=Octopus&includeStyle=false&implemented=true#OCTOPUS" -a "C:\dev\octo-fev-09\octopus\Src\Octopus.Fixture\bin\Debug\Octopus.Fixture.dll;GreenPepper.Core.dll;GreenPepper.Extensions.dll" -s

Result : (dotnet profiler result source are here)