Re: [PATCH] Speed up compilation of overload.pm a smidge

On Thu, Jul 16, 2015 at 12:00:06AM +0100, James Raspass wrote:
> Measured with the following crude perl script calling perf. Perl
> is in there to get a rough baseline cost of starting perl:
> 
>  print 'PERL', (`perf stat -r100 perl -e 1             2>&1`)[10];
>  print 'OLD ', (`perf stat -r100 perl lib/overload.pm  2>&1`)[10];
>  print 'NEW ', (`perf stat -r100 perl lib/overload2.pm 2>&1`)[10];
> 
> Produced the following results on my machine:
> 
>  PERL  5,800,051 instructions # 1.05 insns per cycle ( +- 0.06% )
>  OLD  14,818,995 instructions # 1.16 insns per cycle ( +- 0.03% )
>  NEW  14,696,974 instructions # 1.16 insns per cycle ( +- 0.03% )
> 
> While the numbers did fluctuate between runs, the new code was
> consistently faster.

Thanks, applied as v5.25.5-43-g607ee43.

-- 
That he said that that that that is is is debatable, is debatable.

• Re: [PATCH] Speed up compilation of overload.pm a smidge by Dave Mitchell
• Re: [PATCH] Speed up compilation of overload.pm a smidge by James Raspass
• Re: [PATCH] Speed up compilation of overload.pm a smidge by Karl Williamson