Hi Bob,

    thanks for the heads up!  I'll take a look at this ASAP, but ephemerons
in the Spur scavenger come first.


On Fri, Sep 27, 2013 at 11:12 AM, Bob Arning <arning315 at comcast.net> wrote:

>  Following up Herbert's question, I wrote:
>
> compareTiming: a to: b
> "
> ---interpreter vm (5.7.4.1) ---------
> Float compareTiming: 1 to: 1.0 ==> 719
> Float compareTiming: 1.0 to: 1.0 ==> 991
> Float compareTiming: 1 to: 1 ==> 312
> Float compareTiming: 1.0 to: 1 ==> 686
> ---cog vm (2749)---------
> *Float compareTiming: 1 to: 1.0  ==> 28162*
> Float compareTiming: 1.0 to: 1.0  ==> 148
> Float compareTiming: 1 to: 1  ==> 97
> Float compareTiming: 1.0 to: 1  ==> 179
> "
>
> ^[1000000 timesRepeat: [
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
>     a < b.
> ]] timeToRun
>
> So, some obvious questions:
> - in the interpreter vm, why is comparing two floats slower that an
> integer and a float?
> - what's up with Cog? Three tests are faster by the expected ratio and one
> took a real dive.
>
> Also, the profiler Herbert used could use some attention to the NewFloat
> printing:
>
> 99.9 (898,069)  Multiline1  doOneStep:
>    *77.30000000000001* (694,902)  Multiline1 [HkTestLine]  doTests:
>       73.8 (663,438)  HkRunin [HkTestStation]  canStartNextTest:
>
> Cheers,
> Bob
>
>
>
>
>


-- 
best,
Eliot
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