[llvm-branch-commits] [llvm] [MC][NFC] Reduce Address2ProbesMap size (PR #102904)

[Lei Wang via llvm-branch-commits]

wlei-llvm wrote:


> > To double-check: did you test with or without dwarf-correlation? I tested once with it, expectedly pseudo probe parsing wasn't engaged, so there was no effect.
> 
> Yes, I double-checked it's a pseudo-probed binary not dwarf-correlation. Note that for end to end test, the pseudo-probe decoding is not the bottleneck(only account for < 1% run time), so neutral for run time is kind of expected. I was to test if the Address2ProbesMap `find` could regress the run time.

For RSS, it's probably because in llvm-profgen, we decoded the pseudo-probe only for profiled function(https://reviews.llvm.org/D121643), so the baseline memory is decreased. 

In https://github.com/llvm/llvm-project/pull/102789, I tested for pseudo-probe decoding for all functions. 


https://github.com/llvm/llvm-project/pull/102904