3 ms·
Do bear in mind the issue in question is voltage spikes (which cause unexpected shutdown), that's what Apple is trying to prevent. Most of the time there'll be
by TazeTSchnitzel 9y ago
Do bear in mind the issue in question is voltage spikes (which cause unexpected shutdown), that's what Apple is trying to prevent. Most of the time there'll be no performance impact, it would just lower how far the phone can boost clock speed when it needs it, I'm guessing? So it would affect the peak (and therefore mean) performance, but not the mode or median, I think?
Correct me if I'm wrong.
- icegreentea2 9y agoModern CPUs will pretty much always try to boost as long as they have the thermal and power headroom to do so (see race to sleep). Talking about mean, median, and 'mode' of performance is going to be tricky because it'll be heavily dependent on how the tests are being run. Things like, is there enough time to rebuild thermal headroom between iterations, or does a single iteration ever actually run enough to exhaust its thermal headroom will effect the results of multiple runs. So returning to the base point, any reduction in boost frequency in -normal- usage (seperate from benchmarking) will cause (machine) measureable (but maybe not perceived) performance loss because everything is built around trying to crank out work as quickly as possible for as short of a time as possible.