Re: Using __builtin_expect (likely/unlikely macros)

[Paul Eggert]

Eli Zaretskii wrote:
> I consider 1.3% performance improvement as insignificant for all
> practical purposes.

When I'm talking about performance measurements I try to use the word 
"significant" in its usual scientific sense 
<https://en.wikipedia.org/wiki/Statistical_significance>.

Agreed that 1.3% is no big deal by itself, but if one can make a series of 1.3% 
performance improvements that build on each other, their effects multiply and 
the overall effort has worthwhile practical benefits.