diff options
| -rw-r--r-- | UPDATING | 22 |
1 files changed, 22 insertions, 0 deletions
@@ -5,6 +5,28 @@ This file is maintained and copyrighted by M. Warner Losh of file for further details. For commonly done items, please see the COMMON ITEMS: section later in the file. +NOTE TO PEOPLE WHO THINK THAT 5.0-CURRENT IS SLOW: + FreeBSD 5.0-CURRENT has many debugging features turned on, in + both the kernel and userland. These features attempt to detect + incorrect use of system primitives, and encourage loud failure + through extra sanity checking and fail stop semantics. They + also substantially impact system performance. If you want to + do performance measurement, benchmarking, and optimization, + you'll want to turn them off. This includes various WITNESS- + related kernel options, INVARIANTS, malloc debugging flags + in userland, and various verbose features in the kernel. Many + developers choose to disable these features on build machines + to maximize performance. + + In addition, IDE write caching is currently disabled by default + due to on-going concerns about disk write order and file system + integrity. Re-enabling write caching can substantially improve + performance. + +20020225: + Warnings are now errors in the kernel. Unless you are a developer, + you should add -DNO_WERROR to your make line. + 20020217: sendmail 8.12.2 has been imported. The sendmail binary is no longer a set-user-ID root binary and the infrastructure to support |
