upgrading to CURRENT from STABLE
In the UPDATING file, the following is noted: 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. How do I turn them off? Thanks, Joe To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-current in the body of the message
Re: upgrading to CURRENT from STABLE
On Thu, 9 Jan 2003 20:34:19 +0100 David Holm [EMAIL PROTECTED] wrote: You can find info on how to set maximum optimizations with gcc 3.2 here: http://www.freehackers.org/gentoo/gccflags/flag_gcc3opt.html BTW, some of these flags will only work with gcc 3.1 and higher, so you won't be able to set them until after you have upgraded to 5.0. But as I said, you don't want to set the when compiling world and kernel anyway ;). I usually have two sets of CFLAGS and CXXFLAGS in my make.conf, one which I use when compiling world/kernel and one which I use for everything else. It's just a matter of moving two '#' when switching, the lazy could even write a script =). On Thu, 09 Jan 2003 11:22:39 -0800 Joe Laughlin [EMAIL PROTECTED] wrote: In the UPDATING file, the following is noted: 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. How do I turn them off? Thanks, Joe To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-current in the body of the message To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-current in the body of the message To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-current in the body of the message
Re: upgrading to CURRENT from STABLE
On Thu, 9 Jan 2003 20:34:19 +0100 David Holm [EMAIL PROTECTED] wrote: You can find info on how to set maximum optimizations with gcc 3.2 here: http://www.freehackers.org/gentoo/gccflags/flag_gcc3opt.html I'm the master of forgetting to tell people important stuff =(. You should not use -march=somearch, instead use this on a separate line: CPUTYPE?=somearch On Thu, 09 Jan 2003 11:22:39 -0800 Joe Laughlin [EMAIL PROTECTED] wrote: In the UPDATING file, the following is noted: 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. How do I turn them off? Thanks, Joe To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-current in the body of the message To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-current in the body of the message To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-current in the body of the message
Re: upgrading to CURRENT from STABLE
Hi, On Thu, 09 Jan 2003 11:22:39 -0800, Joe Laughlin [EMAIL PROTECTED] said about: upgrading to CURRENT from STABLE: joe In the UPDATING file, the following is noted: joe FreeBSD 5.0-CURRENT has many debugging features turned on, in joe both the kernel and userland. These features attempt to detect joe incorrect use of system primitives, and encourage loud failure joe through extra sanity checking and fail stop semantics. They joe also substantially impact system performance. If you want to joe do performance measurement, benchmarking, and optimization, joe you'll want to turn them off. joe How do I turn them off? The document says: This includes 1) various WITNESS-related kernel options, 2) INVARIANTS, 3) malloc debugging flags in userland, and 4) various verbose features in the kernel. For 1), 2) You can find the comment as Debugging for use in -current in /usr/src/sys/i386/conf/GENERIC. For 3) see TUNING in malloc(3) For 4) You may find them in UPDATING items (newer than base system) or Other options may be found by sysctl -a , I think. and read COMMON ITEMS at end of UPDATING. Regards, Hiroyuki CHIBA: [EMAIL PROTECTED][EMAIL PROTECTED] Security Solution Promoting Division, Hitachi,Ltd. To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-current in the body of the message
