linux-kernel - Re: [PATCH] Add support for deferrable timers (respun-Mar28)

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]

Date:	Thu, 29 Mar 2007 13:58:52 +0200
From:	Andi Kleen <ak@...e.de>
To:	Kyle Moffett <mrmacman_g4@....com>
Cc:	Venki Pallipadi <venkatesh.pallipadi@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Oleg Nesterov <oleg@...sign.ru>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	davej@...emonkey.org.uk, johnstul@...ibm.com, mingo@...e.hu,
	tglx@...utronix.de
Subject: Re: [PATCH] Add support for deferrable timers (respun-Mar28)


> Might also be useful to add an extra option to "top" to reduce the  
> polling frequency if the system is otherwise idle.  A fixed 30-sec  
> timer and a deferrable 1-sec timer or somesuch?

Hmm, i think the current implementation is per CPU. top really would
like to have one that applies to all CPUs though.

Thinking about it for sane user space semantics it would probably need
a global implementation anyways.

Perhaps it could use the same infrastructure as RCU does to handle this?

-Andi
-
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/