linux-kernel - x86_64 ten times slower than i386

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 3 Nov 2007 13:31:49 +0100 (CET)
From:	Bo Brantén <bosse@....umu.se>
To:	linux-kernel@...r.kernel.org
Subject: x86_64 ten times slower than i386

Hello,

I tryed different linux distributions on a computer with an Intel Core 2 Quad 
and I noticed that the 64-bit versions was at least 10 times slower than the 
32-bit versions, to boot the system took over 20 minutes in 64-bit mode and 
then even scrolling text at the command prompt felt slow, however Vista 64 
boots as fast as Vista 32 on the same computer. So I would like to ask if this 
is a known problem or if there is some simple misstake I can have done.

I used live cd's from gentoo and ubunto and at least ubuntu has a rather new 
kernel, also dmesg doesn't show anything strange, for example is the bogomips 
figure the same as when booting in 32-bit mode.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/