linux-kernel - Re: Cache Allocation Technology Design

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: <20141028232215.GO12020@console-pimps.org>
Date:	Tue, 28 Oct 2014 23:22:15 +0000
From:	Matt Fleming <matt@...sole-pimps.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Vikas Shivappa <vikas.shivappa@...ux.intel.com>,
	linux-kernel@...r.kernel.org,
	Matt Fleming <matt.fleming@...el.com>,
	Will Auld <will.auld@...el.com>, Tejun Heo <tj@...nel.org>,
	Vikas Shivappa <vikas.shivappa@...el.com>
Subject: Re: Cache Allocation Technology Design

On Fri, 24 Oct, at 12:53:06PM, Peter Zijlstra wrote:
> 
> NAK, cgroups must support full hierarchies, simply enforce that the
> child cgroup's mask is a subset of the parent's.

For the specific case of Cache Allocation, if we're creating hierarchies
from bitmasks, there's a very clear limit to how we can divide up the
bits - we can't support an indefinite number of cgroup directories.

What do you mean by "full hierarchies"?

-- 
Matt Fleming, Intel Open Source Technology Center
--
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/