----- Original Message -----
From: "Knut Petersen" <knut_peter...@t-online.de>
To: "Carlo Stemberger" <carlo.stember...@gmail.com>
Cc: <lilypond-user@gnu.org>
Sent: Tuesday, April 30, 2013 10:46 AM
Subject: Re: speed
On 07.02.2013 13:52, Carlo Stemberger wrote:
$ time make
[...]
real 0m14.519s
user 0m14.276s
sys 0m0.192s
i7-3770K (3rd generation), Debian Wheezy.
cpu/men: Pentium-M Dothan, 1.86 GHz, 2GB
mobo: AOpen i915GMm-HFS
os: openSuSE 12.3, kernel 3.9
lilypond: 16.2
time make
[...]
real 1m5.877s
user 1m0.884s
sys 0m1.004s
About 4 times slower than your "Ivy Bridge" system.
Half of that can be accounted to the doubled clock rate.
I suspect that a lot of the rest is caused by general
improvements in cpu architecture. So lilypond seems
not to scale well with the number of available cores.
Generally, it does. Read
http://lilypond.org/doc/v2.17/Documentation/contributor/saving-time-with-the-_002dj-option
--
Phil Holmes
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