linux-kernel - Question on intel

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>] [day] [month] [year] [list]

Message-ID: <1425705.adneRaQSNa@balsa>
Date:	Sat, 31 May 2014 15:44:02 -0600
From:	Thomas Fjellstrom <thomas@...llstrom.ca>
To:	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Question on intel_pstate driver

Hi,

I've noticed a strange issue on my lenovo W530 laptop for a few months now. 
Even with just a few percent cpu use, it spins the cpu up to it's full boost 
on one or more cores, and tends to keep it there for an extended period. Ever 
since my laptop has been significantly warmer, and louder than it was a while 
back.

Cpu is a: i7-3720QM
Current kernel is: 3.14.4 (debian)

I've also tried vanilla kernels: 3.13, 3.14-rc8

Disabling the intel_pstep driver seems to disable boost states completely, 
which is odd, as I could swear it worked before without it.

Is there something I can do to keep boost states while reducing the heat and 
noise? It seems to be way over compensating for minimal amounts of cpu use.

-- 
Thomas Fjellstrom
thomas@...llstrom.ca
--
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/