SMT profiling with pmcstat and perf

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This article discusses profiling symmetric multithreading (SMT) on the POWER9 architecture. It uses both Debian with perf and Big-endian FreeBSD and pmcstat.

Contents

1 Symmetric multithreading (SMT)
- 1.1 SMT principles
  - 1.1.1 SMT is not "multi-core"
- 1.2 Comparison to RISC-V HARTs
2 Benchmark code

Symmetric multithreading (SMT)

SMT principles

SMT is not "multi-core"

Comparison to RISC-V HARTs

Benchmark code

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