4 ms·
Doesn't the link go on to say it's not the type checker causing this? "I found a trace of the compiler kind of surprising; the time is not all being spent in t
by jodrellblank 3y ago
Doesn't the link go on to say it's not the type checker causing this?
"I found a trace of the compiler kind of surprising; the time is not all being spent in the type checker, as you observed:" - 5th reply by scanon
- manmal 3y agoIt says "not all", which I interpret as "some of it is not spent in the type checker". I'm also not sure the times Xcode displays in the screenshot are bound to be accurate.
- stephencanon 3y agoInstruments is a sampling profiler; it's the ground truth w.r.t. where time is being spent.
- manmal 3y agoI don’t know about Instruments‘ implementation, but sampling profilers are not renowned for their accuracy.
- stephencanon 3y agoAll profiling techniques have their drawbacks, but for a quick "where is the time being spent" analysis at multiple-second granularity, you're solidly in the territory where sampling profilers work really well.
- manmal 3y agoThanks for this insight!