Date: Tue, 1 Oct 2019 12:27:04 +0100 From: tech-lists <tech-lists@zyxst.net> To: freebsd-toolchain@freebsd.org Subject: using CPUTYPE?= with poudriere jails Message-ID: <20191001112704.GC96775@bastion.zyxst.net>
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--PuGuTyElPB9bOcsM Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, I've been trying to use CPUTYPE?=3D with certain poudriere jails. My reasoning being that it should be better (more efficient?) making a targeted binary especially when the target is a cpu that doesn't have a lot= of processing power comparitively. I'm not at all certain if my reasoning is correct though, so can anyone advise? Or is it not worth it for the performance gained? (in which case w= hy have the option at all?) Anyway, I was surprised to find that if CPUTYPE?=3Dbtver1 was used in a poudriere make.conf for a freebsd 12.1 jail on a=20 sandybridge host (Intel(R) Xeon(R) CPU E5-2690 0 @ 2.90GHz) (also running 12.1), that some ports would not compile, like python36 and lzo2. If I run a poudriere jail configured the same way on the same freebsd versi= on but on a system which is Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz and is a haswell host, the same programs compile without error. Is this expected and, if so, why? thanks, --=20 J. --PuGuTyElPB9bOcsM Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE8n3tWhxW11Ccvv9/s8o7QhFzNAUFAl2TN/4ACgkQs8o7QhFz NAWUORAArG5mhPgAaxJCPeVYnSs1fwiiSgEnfrTsefncT7OoBQsRLNovdiVaURpO CxPpviJuRqnxIbbtVUkFZ6lDNTrNA8+7+m1cfMWvUst/9WEH/mRAmdsgzUNdw+34 stpJQaTUlMf0ChzuHGcFvWaOkHPlxLyRWzI3gXjLSsYdFFsQKwwLN7OZbLlGj9/t BsyZg0UV2ILJn+nck/l7IUVE0wjojxPX5sBnOYMyAciFEUlbZyecoztuQlnAjluw 7VvzHEvfts3C/yqNMmsQc1mU8p8NBL3yuBEViFazRwAmATzUCRqqi1seOSVu65FF U5JPnNumgQufmpRPiwne+88lvSiBVfycCFEkzRVLzjFg63OBL4Yc9JXp7Zgwp5ZR IA1iQi9nsFfba0ngSx3c9412Wa9iCtGWhuLoYn+bfVY1pJoNjcMDILKEexU3TrHh B52DlsP0OSzugLIbtEM+l8NwgFYUpmgN9ekrjjhFZkQZsN4Jum8NaCAILGV8CCx6 zlCyJg3ZS4PSyoIinvEDIB1nqJ49yYKMrRO+2iX0pipYfyTBtH/06HxS6yNrI+Cy xj4br/ahLIfbX4mkppLCZQJz2xo9VelQNXZjUaqU2dkf15lM3R2R5POD+rUBCkpN IWjmMbOsYb8qyWMOgbQ+vSiHSTwQRn931D3CPBG8jUyjeWwESO8= =q2XN -----END PGP SIGNATURE----- --PuGuTyElPB9bOcsM--
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