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Published 20 hours ago • verified publisher icon andikleen

toplev: Info_Bottlenecks reports negative Scaled_Slots on SKX

Open andikleen opened this issue 10 months ago • 4 comments

  • @aayasin TMA problem?

e.g. on SKL

./toplev --metrics -l3 -q ./workloads/GITGREP 2>&1 | grep Bottleneck C0-T0 Info.Bottleneck Mispredictions Scaled_Slots -1.85 [ 1.0%] C0-T0 Info.Bottleneck Irregular_Overhead Scaled_Slots -7.60 [ 1.0%] ...

Interestingly it goes away with --single-thread so it might be a SMT issue?

andikleen avatar Oct 05 '23 20:10 andikleen