netdev - Re: tbench regression on each kernel release from 2.6.22 -> 2.6.28

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: <87r68u1zeb.fsf@basil.nowhere.org>
Date:	Tue, 12 Aug 2008 09:11:08 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Christoph Lameter <cl@...ux-foundation.org>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: tbench regression on each kernel release from 2.6.22 -> 2.6.28

Christoph Lameter <cl@...ux-foundation.org> writes:

> Maybe what we are seeing is general bloat in kernel execution paths
> due to the growth in complexity?

Wouldn't surprise me. Have you considered doing profiles? 

e.g. just oprofiling the benchmark on the different kernels and see
if there's some obvious difference in the CPU consumers? 

-Andi
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html