linux-kernel - Re: Dynticks Causing High Context Switch Rate in ksoftirqd

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: <474CB3F2.9020901@shaw.ca>
Date:	Tue, 27 Nov 2007 18:18:58 -0600
From:	Robert Hancock <hancockr@...w.ca>
To:	bdupree@...hfinesse.com
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Dynticks Causing High Context Switch Rate in ksoftirqd

bdupree@...hfinesse.com wrote:
> Hello Robert,
> 
> I've attached additional detail on the config of the misbehaving system
> including output from oprofile and PowerTop. PowerTop output leads me to
> believe that maybe this is an interaction between my bridged ethernet
> setup and dynticks? Hmmm...

Don't know about that, your top wakeups are from br_stp_enable_bridge, 
but that is only 26 a second - that doesn't explain a context switch 
rate of 150,000 a second..

-- 
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@...pamshaw.ca
Home Page: http://www.roberthancock.com/

-
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/