Difference between revisions of "SMT profiling with pmcstat and perf"

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==== SMT principles ====
 
==== SMT principles ====
 +
 
===== SMT is not "multi-core" =====
 
===== SMT is not "multi-core" =====
  
 
==== Comparison to RISC-V HARTs ====
 
==== Comparison to RISC-V HARTs ====
 +
 
=== Benchmark code ===
 
=== Benchmark code ===

Revision as of 05:13, 15 July 2025

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

Symmetric multithreading (SMT)

SMT principles

SMT is not "multi-core"

Comparison to RISC-V HARTs

Benchmark code