[vixsomnis]

It's like grocery shopping and coupons, however. If you shouldn't be calling the function, then even a 99% reduction is not useful in that context.

Would you rather call a slow function, a fast function, or skip it altogether?

(A coupon only saves you money if you would buy the item in the first place.)

[wilburlikesmith]

And then no watter what, if you're broke you will go to all lengths jumping through hoops and calculating tiny scores even if it's a waste of time... Because you're broke :p

Sorry, what's the context? Admin / account and login areas don't care / matter much, because they want it :p they'll wait...

[calinet6]

I've experienced slow admin/internal UIs that were so slow and inefficient they brought down the consumer site... and yes, I'm talking algorithmically. Processing data in triple nested loops because it was "quick and easy" and then the data grew beyond a relatively small threshold (something like 10k records was where it started to break).