sso tradeoffs

[Howard Hinnant]

On Nov 3, 2005, at 4:50 AM, Paolo Carlini wrote:




> after some good hours of sleep, I'm ready for some, hopefully
> meaningful, comments. Actually, I'm not 100% sure that it's the right
> time for that: the philosophy of ext/vstring.h is that of giving the
> users a wide choice of different trade-offs and then stabilize to a  
> new
> default standard implementation only just in time for the next ABI
> version. That's why I encourage you to consider in any case this ext
> string stuff your playground, and, if you want, improve also the
> existing code (I'm going to do a bit of that, anyway).
>
>
>

Thanks for your thoughtful comments Paolo.  Getting at least two  
brains (and hopefully a few more) thinking about these tradeoffs was  
exactly what I was hoping for.  I'm not sure what time frame is going  
to work for me to submit an alternative sso, but it is on my to-do  
list.  Perhaps with two alternative sso's that we can easily switch  
between, and/or tweak tuning parameters, we can get some of that real- 
world data you speak of.

Thanks for the swap tweak!  2x faster than a refcounted design on  
vector<string>::insert should give everyone a nice warm fuzzy! :-)   
After all, this really is one the places where a refcounted design  
was supposed to shine.  Nice job!

-Howard