Alan Cox's recent improvements to FreeBSD VM subsystem
Dr. Alan Cox (alc@) has committed several improvements to FreeBSD’s VM implementation, and this brought significant performance gains on 5-CURRENT.
The most essential commits are here and here. After these changes, there is surprisingly huge performance gains, a benchmark done by Dr. Alan has shown:
“Surprisingly, I saw the greatest gain from this change on such a machine: lmbench’s pipe bandwidth result increased from ~1050MB/s to ~1850MB/s on my 2.4GHz, 400MHz FSB P4 Xeon.”
This quickly inspired Matt Dillon and he has a new proposal of the “XIO” concept. Recently, DragonFly is doing many changes on performance area, and hopefully, with XIO, the clustering performance of DragonFly will be much better.
在线阅读本文并参与讨论 delphij's Chaos https://blog.delphij.net/posts/2004/03/alan-coxs-recen/