Article: Increasing the D Compiler Speed by Over 75%

[Bill Baxter]

Are you serious that you can't fathom how it could be confusing to someone
than talking about differences in run times?
If you say something is faster than something else you want the two numbers
to be something you can relate to.  Like MPH.  Everyone has a clear concept
of what MPH is.  We use it every day.  So to say 25 MPH is 25% faster than
20 MPH is perfectly clear.  But nobody talks about program execution speed
in terms of programs per second.  So I think it's pretty clear why that
would be harder for people to grok than changes in car speeds or run times.

Anyway, congrats on the speed improvements!  When I was using D a lot, the
compile times for heavily templated stuff were definitely starting to get
to me.

--bb


On Wed, Jul 31, 2013 at 11:36 AM, Walter Bright
<newshound2 at digitalmars.com>wrote:

> On 7/31/2013 11:13 AM, Bill Baxter wrote:
>
>> That's more analogous to something like MIPS than inverse program run
>> time.
>>
>
> If you increase the speed 100%, then the elapsed time is cut by 50%.
>
> This is a grammar school concept. It does not require an ivy league
> physics degree to understand. It is not obfuscated, confusing, or
> misleading. It doesn't rely on some rarely known "formal" definition of
> speed. I expect an audience of programmers to understand it without needing
> a sidebar.
>
> We talk about speed of programs all the time, including compiler speed. I
> previously posted google searches you can try to verify it for yourself.
>
> I.e. I'm being trolled here :-)
>
>
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