DMD producing huge binaries

[Andrei Alexandrescu via Digitalmars-d]

On 05/20/2016 03:45 PM, Walter Bright wrote:
> On 5/20/2016 5:57 AM, ZombineDev wrote:
>> Walter's PR slows down the compilation with
>> 25-40% according to my tests. I expect that compilation would be
>> faster if the
>> whole process is skipped altogether.
>
>
> The compressor only kicks in if the string is longer than 64 bytes. I
> set it pretty low in order to have it kick in often, and hopefully flush
> out any bugs in it.
>
> For a production version, the minimum size should be set substantially
> larger, based on testing to provide a reasonable balance.
>
> That should speed it up a lot. Also, the algorithm is a bit naively
> implemented, I bet it could be speeded up substantially.
>
> Hashing isn't algorithmically cheap, either.

 From the measurements shown the work seems Pareto distributed - the 
major time spender is the few long symbols, not the many short symbols. 
There are a few long symbols that dominate everything else by an order 
of magnitude. The one percenters! :o) -- Andrei