linux-kernel - Re: [RFC][PATCH 4/4] sched, numa: Ignore pinned tasks

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

Message-ID: <20150518131020.GB2934@linux.vnet.ibm.com>
Date:	Mon, 18 May 2015 18:40:20 +0530
From:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	mingo@...nel.org, riel@...hat.com, dedekind1@...il.com,
	linux-kernel@...r.kernel.org, mgorman@...e.de, rostedt@...dmis.org,
	juri.lelli@....com
Subject: Re: [RFC][PATCH 4/4] sched, numa: Ignore pinned tasks

>  
>  		/*
>  		 * We classify groups/runqueues into three groups:

Nit: Should we update the above from "three groups" to "four groups"?

> -		 *  - regular: there are !numa tasks
> -		 *  - remote:  there are numa tasks that run on the 'wrong' node
> -		 *  - all:     there is no distinction
> +		 *  - regular: there are (migratable) !numa tasks
> +		 *  - remote:  there are (migratable) numa tasks that
> +		 *             run on the 'wrong' node
> +		 *  - movable: there are (migratable) tasks
> +		 *  - all:     there are tasks
>  		 *
>  		 * In order to avoid migrating ideally placed numa tasks,
>  		 * ignore those when there's better options.

-- 
Thanks and Regards
Srikar Dronamraju

--
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/