Generate cover HTML files in parallel #13596
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josevalim
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Today the coverage HTML files are generated one at a time using
:cover.analyse_to_file.This PR changes this code to use
:cover.async_analyse_to_fileto generate the files in parallel, speeding up the coverage report.On a M1 in a project with 1k modules, the time to generate the HTML files went from 4 seconds to 1.2 seconds.