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Xcode now supports Processor Trace profiling on M4/A18

Xcode now supports Processor Trace profiling on M4/A18

4 comments

·March 9, 2025
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7e

How can I use these without the abomination that is Xcode?

sunnyps

Is this basically like Valgrind, but using CPU counters?

bri3d

Think like callgrind, but without the overhead.

The true x86 equivalent is probably `vtune`

For open source there's `perf` + `flamegraph` but that's not interactive, or `KDAB/hotspot` which is probably the closest open-source thing to Apple Instruments.

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