linux-kernel - Re: mistake about the cpufreq?

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-prev] [day] [month] [year] [list]

Message-ID: <20110705175508.GC30531@srcf.ucam.org>
Date:	Tue, 5 Jul 2011 18:55:08 +0100
From:	Matthew Garrett <mjg@...hat.com>
To:	俞颐超 <yyc1992@...il.com>
Cc:	linux-kernel@...r.kernel.org, cpufreq@...r.kernel.org
Subject: Re: mistake about the cpufreq?

On Fri, Jul 01, 2011 at 09:17:08PM -0400, 俞颐超 wrote:

> So after reading the files in cpu-freq/, I saw it was mentioned in
> user-guide.txt that the scaling_ ones is what the kernel thinks the
> freq is and cpuinfo is the actual freq.
> y can these two be different?

Many systems don't have independently clockable cores. In that case the 
cpu will run at the speed of the highest clocked core.

-- 
Matthew Garrett | mjg59@...f.ucam.org
--
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/