akhiezer wrote:
From: Bruce Dubbs <[email protected]>
Date: Sun, 11 Dec 2016 11:29:42 -0600
Subject: [lfs-dev] LFS and 32-bit systems
Do any of you still have a 32-bit Intel system that you use to test/run LFS?
'Yes', nine different 32-bit machines; plus three 64-bit running 32-bit os.
*BUT*, these are for not-by-the-books builds: instead, they're for
builds/tests that derive in parts from the books.
I am thinking about rewriting the LFS preface section on architecture to say:
The primary target architecture of LFS is the AMD/Intel x86_64 (64-bit)
CPU. In addition instructions are included that allow a build on older
32-bit Intel CPUs, but testing is not regularly done on that architecture.
s/regularly done/done regularly/
Minor, but OK.
The instructions in this book are also known to work, with some
modifications, with the Power PC and ARM CPUs. ...
I would then remove the second and third paragraphs and the small table
between them.
Both paras and table are ok to leave in, until as/when 32-bit is
dropped altogether.
When I originally did that, the stats were from a Core2Duo as documented.
Even that is a bit long-in-the-tooth. I don't know how valid that
comparison is today.
It may be useful/'nice' to include stats from recent by-the-book 32-/64-
bit (properly-comparable) builds.
I could do that if I had the stats. I don't have a reasonable way to
compare today. I don't think giving numbers for a 3.3 GHz i7-5820K really
is a good platform for the stats.
My latest build took 64 minutes (vice Core2 at 190.6 minutes), but that
was at -j8 and omitted some, but not all tests in chapter 6.
-- Bruce
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