Re:macOS Catalina
by jabl on Tuesday October 08, 2019 @06:46AM
(#21190777)
Indeed. X32 is beneficial for an application that
- Never needs more than 4 GB RAM (because it's not worth the usability downsides from having two binaries and letting the user choose which to use, just for a small performance boost)
- Is performance critical
- Performance is bound by memory and/or cache bandwidth
- A large share of the program memory usage is due to pointers
The intersection of all the above is just vanishingly small in reality. X32 was never more than a gimmick to score a few extra points in SPECcpu. And thus people rightfully ignored it.
- Never needs more than 4 GB RAM (because it's not worth the usability downsides from having two binaries and letting the user choose which to use, just for a small performance boost)
- Is performance critical
- Performance is bound by memory and/or cache bandwidth
- A large share of the program memory usage is due to pointers
The intersection of all the above is just vanishingly small in reality. X32 was never more than a gimmick to score a few extra points in SPECcpu. And thus people rightfully ignored it.