====== FreeBSD MP Scalability Project ======

With the advent of readily affordable 32-thread hardware (sun4v), the starting goal of 4-processor scalability for the %%FreeBSD%% SMPng Project requires revision.  This page is a work-in-progress todo list, and is not comprehensive.

  - Improve MUTEX_PROFILING: measure contention times, not just counts; measure contention for other lock types, such as spinlocks, sx locks, rw locks, etc, not just sleep mutexes.
  - Simplify locking in sleepqueues.
  - Determine how best to reduce runq lock contention.
  - Re-evaluate inlining decisions.
  - File descriptor lock contention.
  - General profiling of real-world workloads with > 8 cpus.
  - IPC lock granularity, especially for UNIX domain sockets.

===== Team =====

  * KipMacy
  * KrisKennaway
  * RobertWatson

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{{tag>InactiveProject}}
{{tag>Performance}}