[Chicken-users] Re: nursery logic

[Brandon J. Van Every]

Brandon J. Van Every wrote:
> Also I wonder whether you want less-than-or-equal or simply less-than:
>
>        elif [ $$tm -le $$best ]; then \
>          best=$$tm; \
>          bestn=$$n; \
>
> less-than-or-equal says "if all things are the same, then prefer a 
> bigger nursery."  less-than would say "...prefer a smaller nursery."

I have decided that this test is frail.  On my machine, whether I end up 
with a nursery that's 256K or 512K in size is pretty random.  The 
testing is rather inaccurate; nsample -s:128k varies between 380 ms and 
480 ms.  Given the multitasking nature of build machines, I would say 3 
testing samples aren't nearly enough to get a good average for the 
nursery size.  I'm going to try 10 samples.

I've decided to prefer smaller nurseries, if performance is equal.  
Partly due to lack of feedback (Felix?), partly because I don't trust 
the nsample benchmark.


Cheers,
Brandon Van Every