On 12/11/2018 13:19, Aleksa Sarai wrote:
(I think you'd need to do gcc -march=native or use very new Intel-specific intrinsics).
Beware -- much of that sort of thing and you'll start wanting to switch to Gentoo. ;-) https://funroll-loops.teurasporsaat.org/
And please remember that AMD's CPU business wasn't doing too well until little over a year ago -- and recently did they become very competitive with (and in some cases superior to) Intel. Mentioning AMD CPU support in 2016 wouldn't have made much sense or been impressive. (We aren't well-known for updating the wiki in a timely manner. :P)
That's not really fair. It's not just Intel and AMD and almost never was. Since the IBM PC came out, x86 chips have come from: * Intel * NEC * AMD * Harris * Cyrix * IDT * Via * Transmeta ... and that's from memory. Around the Pentium 1 period, the best bang-for-the-buck was Cyrix. Even IBM manufactured and used them. The Cyrix 6x86 was about 15-20% faster, clock for clock, than Intel. Quake killed it. https://liam-on-linux.livejournal.com/49259.html Then around the Pentium 4 period, the best performance for both money and for electricity consumption was AMD: https://www.pcper.com/news/Editorial/Yes-Netburst-really-was-bad-CPU-archite... Intel had to do a humiliating climb-down, cancel the entire P4 line and switch to a derivative of the Pentium-M instead: https://www.theregister.co.uk/2005/05/13/intel_confirms_netburst_end/ The Pentium-M being a derivative of the old Pentium 3, i.e. of the Pentium Pro from 1995. https://en.wikipedia.org/wiki/P6_(microarchitecture) So basically for at 3 periods during the time while x86 has been dominant -- NEC V20/V30 versus 8088/8086, 1982-1984; Cyrix 6x86 versus P5, 1996-1997; and AMD Sledgehammer versus Netburst P4, 2003 to 2006 -- Intel has *not* been the vendor of the fastest x86 processors. Yes, it's Intel's architecture. Yes, Intel has always been the dominant vendor. But it's not had it all its own way. -- Liam Proven - Technical Writer, SUSE Linux s.r.o. Corso II, Křižíkova 148/34, 186-00 Praha 8 - Karlín, Czechia Email: lproven@suse.com - Office telephone: +420 284 241 084 -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org