Date: Sat, 1 Aug 2009 04:17:42 +0200 From: Giovanni Trematerra <giovanni.trematerra@gmail.com> To: freebsd-current@freebsd.org Cc: Attilio Rao <attilio@freebsd.org>, Peter Holm <pho@freebsd.org>, Hans Petter Selasky <hselasky@c2i.net> Subject: Re: [PATCH] Newbus locking Message-ID: <4e6cba830907311917j5d3c0eb6u7f7b1099d3acd504@mail.gmail.com> In-Reply-To: <200907311919.26913.hselasky@c2i.net> References: <3bbf2fe10907310759o3be1f565t4122fcd66c4531f4@mail.gmail.com> <200907311818.08481.hselasky@c2i.net> <3bbf2fe10907310934r640350c6n7ea89d3aaf36a05f@mail.gmail.com> <200907311919.26913.hselasky@c2i.net>
next in thread | previous in thread | raw e-mail | index | archive | help
> On Fri, Jul 31, 2009 at 7:19 PM, Hans Petter Selasky<hselasky@c2i.net> wrote: > > I'm not saying that your approach will not work or that it is wrong. I'm > saying that it is not fast enough. Your patch affects the boottime, in a > negative way. > I tested a patch for a while. I didn't notice any slow down in boot time. Well, I haven't measured it but I can't see any noticeable difference even booting from an USB key. I have to be honest, I don't understand the patch but any comments on performance without an evident profiling seems to me a "premature optimization" that is known to be the root of all devils (D. Knuth) -- Giovanni Trematerra
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4e6cba830907311917j5d3c0eb6u7f7b1099d3acd504>