Hugo is fast, but ineffecinet templates can make it slower. For checking the performance you can use the below commands.
Use
hugo --logLevel debugto display debug information, warning, and error message.Use
hugo --templateMetricsto check for slow templates. This will show the time it takes to render each template.Use
hugo --gc(garbage collection) to clean up unused files, which might help reduce build time.Use
debug.Timerto determine the execution time of a block of code. And use thehugo --logLevel infoinfo command line flag when you build the site.
{{ $t := debug.Timer "TestSqrt" }}
{{ range seq 2000 }}
{{ $f := math.Sqrt . }}
{{ end }}
{{ $t.Stop }}