We have a small to medium size repository and we run Sonar as part of our PR pipelines to help ensure higher code quality in our product. Unfortunately while we have been able to greatly improve our pipeline times by running unit tests and various linters in parallel, the Sonar stage is now the bott…

Hi @sodul , for some languages, this capability already exists. For instance, if you’re doing C, C++, or Objective-C, it is documented how to achieve multithreaded scan . Which language are you analyzing in your repos?

Hi @Fabrice_Bellingard , Our 3 main languages are Go, Python and TypeScript. The rest is negligible. There 3 do not seem to support multi-threading, and it seems to be something to be implemented per plugin. It might still be possible to allow multiple plugins to run in parallel threads and gain ov…

Hi @sodul , our teams did some POCs in the past to see what we could get from running things in parallel. The outcome was not interesting enough to move into that direction. Maybe we’ll give it a try once again in the future - but nothing planned for now.

@Fabrice_Bellingard the trend nowadays is no longer to have faster CPUs clock speeds but more cores and where disk io is significantly faster. If you did the tests when the number of cores was limited to just a few and where you used classic hard drives, I can understand that it would not have help…

Analysis speed is a bottleneck for my team as well. We have 8 CPUs on build machines, but it looks like sonar is using only one. We are thinking to switch to something else like error-prone, as sonar phase of our build already takes more than everything else (we are utilizing parallel builds and cac…

I totally agree with you that nowadays it’s possible to have build machines with a lot of cores and they are not used by our analyzers. We are currently exploring options to use them more, to not re-analyze files that did not change compared to the previous analysis, or to just analyze what is part …

Allow sonar-scanner to analyse files in parallel

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sodul (Stephane Odul) February 16, 2022, 11:27pm 12

Thanks @Alexandre_Gigleux, I’ve filed a topic as requested: Sonar Scanning slower than expected on multi-core environment

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Allow sonar-scanner to analyse files in parallel

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