How to speed up the execution

[Cheap-Cheer]

When executing a CodeQL ql query, it shows that it needs to compile first, but the compilation time is too long. A simple file often takes 10 to 20 seconds, which causes the total time for executing a query to be around 30 seconds. Is there any way to speed up the execution? Thank you!

[redsun82]

👋 @Cheap-Cheer

There are some things you can try to improve the UX with regard to this, though ultimately compiling queries is a costly step.

• if you are compiling a query you are writing yourself, you can try passing -j0 to make codeql run compilation in parallel using as many threads as available on the system
• if you are using an off-the-shelf query, you can download what we call a bundle from the codeql-action releases here. Those differ from the CLI releases in that they also include pre-compiled queries for all languages. That is what codeql-action uses, so that it can get to evaluating queries straight away without doing the compilation step.