On Friday, November 23, 2018 at 1:58:37 PM UTC-7, Ben Hoyt wrote:
>
> So my main suggestion (for spakin/awk) would be able to wrap os.Stdout in
> a bufio.NewWriter (and be sure to call Flush before Run finishes). If the
> user wants to pass an unbuffered version, they still can, but at least the
> default is performant.
>
> I also added CPU profiling to the spakin/awk script, and it looks like
> it's doing a bunch more garbage collection than GoAWK, as well as some
> regexp stuff. I suspect NewValue() is probably quite slow as it takes an
> interface{} and does type checking. Also, strings are converted to numbers
> using a regex, which is probably slower than a dedicated conversion/check
> function (see parseFloatPrefix in goawk/interp/value.go).
>
> See more optimization ideas in my post at
> https://benhoyt.com/writings/goawk/
>
Thanks for doing the performance analysis of spakin/awk
<https://github.com/spakin/awk>! Once I find the time to work on that
project some more, I'll certainly look into implementing some of your
suggestions.
— Scott
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