Date: Fri, 5 Apr 2002 22:08:31 +0200 From: Alessandro de Manzano <adm@unixmania.net> To: Alfred Perlstein <bright@mu.org> Cc: hackers@freebsd.org Subject: Re: Is a debug kernel slower than a non-debug one ? Message-ID: <20020405220831.B14188@libero.sunshine.ale> In-Reply-To: <20020405200005.GY93885@elvis.mu.org>; from bright@mu.org on Fri, Apr 05, 2002 at 12:00:05PM -0800 References: <20020405215712.A14188@libero.sunshine.ale> <20020405200005.GY93885@elvis.mu.org>
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On Fri, Apr 05, 2002 at 12:00:05PM -0800, Alfred Perlstein wrote: Wow, thanks for the super-fast answer! :)) > > on my production servers' kernel so in the very rare case of crash I'll > > got a crash dump ( I'ld use also options DDB_UNATTENDED) and could > > immediately have a backtrace report. > > > > ..Am I crazy ? :-)) > > I don't think you'll notice a difference for most stuff, this is how does the "-g" option (GCC option I guess) disable the "-O" optimizing option ? If "-g" simply attach the symbols and similar debug info to the executable I guess the kernel should not be slower, but I don't know GCC very well... > I ran my production boxes for quite a while when I was doing admin > work. It helped a _lot_ if a problem happened. Exactly my intentions... Actually till now I had just one crash and for hardware reasons, but better safe than sorry... :-) Thanks again! -- bye! Ale ale@unixmania.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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