Gentoo Archives: gentoo-dev

From: Alexander Berntsen <alexander@××××××.net>
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] Re: [gentoo-dev-announce] RFC: Graveyard project
Date: Fri, 15 Feb 2013 13:08:59
Message-Id: 511E3363.9050701@plaimi.net
In Reply to: Re: [gentoo-dev] Re: [gentoo-dev-announce] RFC: Graveyard project by "Diego Elio Pettenò"
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4 On 15/02/13 13:58, Diego Elio Pettenò wrote:
5 > Freedom is overrated, especially by those who use such sound
6 > bites.
7 Whilst you do get to decide how and if you choose to value my freedom,
8 you most certainly do *not* get to decide how I should rate it.
9
10 > Let me guess, you use CFLAGS="-O3 -funroll-loops"?
11 I have performed benchmarking that suggested that O3 is detrimental to
12 runtime half the time, and only marginally positive the other half
13 (and unroll-loops (which of course is very sensitive to context) never
14 resulted in big enough an improvement to make it worth using) --
15 regardless of CPU and architecture -- so no.
16
17 I do not fully see the relevance to the conversation, so I suggest you
18 take inquiries regarding compiler flags to me privately, or make a new
19 thread.
20
21 - --
22 Alexander
23 alexander@××××××.net
24 http://plaimi.net/~alexander
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