[PATCH] D52779: AMD BdVer2 (Piledriver) Initial Scheduler model

Wed Oct 3 08:58:46 PDT 2018

lebedev.ri added a comment.

In https://reviews.llvm.org/D52779#1253475, @courbet wrote:

> Interesting. The code is so large that maybe you're seeing i-cache issues ? In that case you should see a constant value, then a sudden drop after a certain value of  `-num-repetitions`.

Got some numbers for you to play with.
Rough overview: https://docs.google.com/spreadsheets/d/1hmznTDLXGFeETc3yGtU9UGGyAHgBodLORr9sU4uaRis/edit?usp=sharing
More precise measurements for 1000...100000 range: F7350502: measurements <https://reviews.llvm.org/F7350502>
Fit: F7350507: Rplots.pdf <https://reviews.llvm.org/F7350507>
F7350516: measureall.py <https://reviews.llvm.org/F7350516>
F7350517: kindastats.r <https://reviews.llvm.org/F7350517>

Repository:
  rL LLVM

https://reviews.llvm.org/D52779