This documentation describes the style of threading that was available in 5.005. However, be advised that interpreter threads cannot as yet be created from the Perl level yet. The rest of this document only applies to the use5005threads style of threads. Support for threading is still in the highly experimental stages. There are known race conditions that show up under high contention on SMP machines.
Internal implementation is still subject to changes.
It is not recommended for production use at this time. 6.2 will require a few OS patches. See lower down for patch details. AIX 4.1.5 or newer. FreeBSD 2.2.8 or newer.