linux-kernel - Re: [Intel IOMMU 00/10] Intel IOMMU support, take #2

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: <46812ADF.3060609@linux.intel.com>
Date:	Tue, 26 Jun 2007 08:03:59 -0700
From:	Arjan van de Ven <arjan@...ux.intel.com>
To:	Muli Ben-Yehuda <muli@...ibm.com>
CC:	Andi Kleen <ak@...e.de>, Andrew Morton <akpm@...ux-foundation.org>,
	"Keshavamurthy, Anil S" <anil.s.keshavamurthy@...el.com>,
	linux-kernel@...r.kernel.org, gregkh@...e.de,
	suresh.b.siddha@...el.com, ashok.raj@...el.com,
	davem@...emloft.net, clameter@....com
Subject: Re: [Intel IOMMU 00/10] Intel IOMMU support, take #2

Muli Ben-Yehuda wrote:
> How much? we have numbers (to be presented at OLS later this week)
> that show that on bare-metal an IOMMU can cost as much as 15%-30% more
> CPU utilization for an IO intensive workload (netperf). It will be
> interesting to see comparable numbers for VT-d.

for VT-d it is a LOT less. I'll let anil give you his data :)
-
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/