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Date: Sat, 13 May 2006 09:03:06 +0300 (EEST)
From: Dmitry Pryanishnikov <dmitry@atlantis.dp.ua>
To: Kris Kennaway <kris@obsecurity.org>
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Cc: freebsd-stable@FreeBSD.org, Robert Watson <rwatson@FreeBSD.org>
Subject: Re: RELENG_4 -> 5 -> 6: significant performance regression
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Hello!

On Fri, 12 May 2006, Kris Kennaway wrote:
>>  So maybe it's time to add, say,
>>
>> options      INVARIANTS_EXTENDED
>>
>> for these new and expensive checks, and leave only basic and cheap (yet
>> effective for bug hunting) asserts enabled when only
>>
>> options      INVARIANTS
>>
>> is defined?
>
> No, they are all effective for bug hunting.  You just need to be aware
> that it is incompatible with performance.

  But, you know, many bugs can be hunted only under long-term production 
conditions, while incompatibility between INVARIANTS and performance
effectively prevents successful bug hunting under these conditions,
because performance is often critical in production.

> Kris

Sincerely, Dmitry
-- 
Atlantis ISP, System Administrator
e-mail:  dmitry@atlantis.dp.ua
nic-hdl: LYNX-RIPE