std.d.lexer performance (WAS: std.d.lexer : voting thread)

Andrei Alexandrescu SeeWebsiteForEmail at erdani.org
Thu Oct 3 13:10:50 PDT 2013


On 10/3/13 12:47 PM, Brian Schott wrote:
> On Thursday, 3 October 2013 at 19:07:03 UTC, nazriel wrote:
>> (Btw, someone got benchmarks of std.d.lexer?
>> I remember that Brain was benchmarking his module quite a lot in order
>> to catch up with DMD's lexer but I can't find links in IRC logs. I
>> wonder if he achieved his goal in this regard)
>
> The most recent set of timings that I have can be found here:
> https://raw.github.com/Hackerpilot/hackerpilot.github.com/master/experimental/std_lexer/images/times4.png
>
>
> They're a bit old at this point, but not much has changed in the lexer
> internals. I can try running another set of benchmarks soon. (The
> hardest part is hacking DMD to just do the lexing)
>
> The times on the X-axis are milliseconds.

I see we're considerably behind dmd. If improving performance would come 
at the price of changing the API, it may be sensible to hold off 
adoption for a bit.

Andrei



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