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.
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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=, instead use this on a separate line: CPUTYPE?= > 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 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
Comment (or remove) these lines in your kernel config: makeoptions DEBUG=-g options DDB options INVARIANTS options INVARIANT_SUPPORT options WITNESS options WITNESS_SKIPSPIN You should also add the following to /etc/make.conf: NOPROFILE=true You can find info on how to set maximum optimizations with gcc 3.2 here: http://www.freehackers.org/gentoo/gccflags/flag_gcc3opt.html (Originally written for gentoo linux, but should work with FreeBSD too). A warning though, NEVER compile world and your kernel using all these flags unless you are prepared to reinstall. My system failed once simply because I used CFLAGS = "-O3 -pipe" instead of "-O2 -pipe". You will probably be able to compile most ports with these flags though, back when I ran gentoo I was able to compile 99% of all applications with these. //David Holm 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
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
