Date: Sun, 30 Apr 2006 13:39:51 +0100 From: Dominic Marks <dom@helenmarks.co.uk> To: Peter Jeremy <peterjeremy@optushome.com.au> Cc: Chris <chrcoluk@gmail.com>, freebsd-stable@freebsd.org Subject: Re: RELENG_4 -> 5 -> 6: significant performance regression Message-ID: <4454B017.5080706@helenmarks.co.uk> In-Reply-To: <20060430103111.GC980@turion.vk2pj.dyndns.org> References: <20060427160536.M96305@atlantis.atlantis.dp.ua> <20060427181226.GA66431@xor.obsecurity.org> <20060428122448.K57436@atlantis.atlantis.dp.ua> <20060428182818.GA10410@xor.obsecurity.org> <3aaaa3a0604300205l64f19573u250a727e4c83f499@mail.gmail.com> <20060430103111.GC980@turion.vk2pj.dyndns.org>
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Peter Jeremy wrote: > On Sun, 2006-Apr-30 10:05:40 +0100, Chris wrote: >> Does 'makeoptions DEBUG=-g' add any kind of performance hit or >> overhead as I noticed it wasnt default in 5.4 but is in 6.0. > > No. It just means that a debug kernel is built in addition to the > normal kernel. The major benefit is that if you do get a panic, > you can debug it without needing to rebuild the kernel. > I've often thought that the default should be for this to be on instead of off. Does anyone know why the current state is so? I suppose it incurs a small amount of additional disc space but the benefits are considerable for everyone involved. Cheers, Dominic
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