gentoo转移到gcc3.1的行动正在开始,并且还有一项计划是用icc(intel c compile)来再次高度优化,可以 完全支持p4的优化People are finding our kernel to be quite zippy, particularly when it comes to interactive responsiveness -- something I care very much about. It's based on -ac so it has rmap and O(1) as well as some new IDE stuff. We've also added Robert Love's preempt patch, Andrew Morton's low latency code (both can be turned on/off in "make menuconfig" as desired) and bumped the HZ on i386 systems to 1000. Thanks to the efficiency of O(1) and rmap, HZ=1000 works nicely to increase responsiveness without introducing any significant overhead. And of course preempt does amazing things for interactive use -- much more so than low-latency. It's clear that good interactive response isn't *purely* about low-latency -- otherwise Andrew Morton's low latency patches would give much better and crisper interactive response, which isn't the case. Preempt seems to make the timeslicing of the CPU much more uniform (this is an educated guess, not a fact), which in turn appears to make a huge improvement in the "feel" of everything. It makes everything feel much more Amiga-like and presumably more BeOS-like.
Besides our performance-related improvements, we also now include XFS 1.1, htb2 (a very good QoS patch), grsecurity and a handful of patches from J?g Prante's bag of goodies, including freeswan (ipsec) and the international crypto patch (only available in our "crypto-sources" kernel which is an install option; our standard "gentoo-sources" kernel doesn't have any strong crypto so that people in countries where strong crypto isn't illegal won't break their country's laws unintentionally.) We also include Andrea Archangeli's 3.5Gb address space patch and a recent snapshot of the ACPI code being developed by Intel.
关于gentoo内核的特点,加入了低延迟,加大cpu分割时间段到1000的补丁(还有很多大概6-70多个吧),看起来和感觉有beos的味道
提供redhat和mandrake的内核,增加了服务器gentoo计划,稳定的服务器cvs树,用以区分开发版
