From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750742AbWDMOxv (ORCPT ); Thu, 13 Apr 2006 10:53:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750826AbWDMOxv (ORCPT ); Thu, 13 Apr 2006 10:53:51 -0400 Received: from zproxy.gmail.com ([64.233.162.194]:32898 "EHLO zproxy.gmail.com") by vger.kernel.org with ESMTP id S1750742AbWDMOxu convert rfc822-to-8bit (ORCPT ); Thu, 13 Apr 2006 10:53:50 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=dLbvPsnJ63EI/v2/kknbK1whY27uVHInuSxjnHE0ewOYWQ/3+eq1/e4hieboUlXy2Ki/eE02TdVsaL5Q/LMWqA0V7r00PhqxAc2c8Xn3GUVmPUF53sF9AgtkxRWLRByi4bvOKjjNFvAl77tid1cc6zuHQQstd3wDksxxz2Sc4i0= Message-ID: <62a080740604130753i4b8bbbckc3cba12092b54226@mail.gmail.com> Date: Thu, 13 Apr 2006 07:53:50 -0700 From: "K P" To: linux-kernel@vger.kernel.org Subject: JVM performance on Linux (vs. Solaris/Windows) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Sun's recently published SPECjbb_2005 numbers on Linux, Windows and Solaris on their Opteron system, and the Linux result is the lowest of the three by far: Linux: http://www.spec.org/jbb2005/results/res2006q1/jbb2005-20060117-00062.html Solaris: http://www.spec.org/jbb2005/results/res2006q1/jbb2005-20060117-00063.html Windows: http://www.spec.org/jbb2005/results/res2006q1/jbb2005-20060117-00064.html It's not evident if Sun spent any time analyzing and tuning the Linux result. While the majority of the tuning opportunities for SPECjbb_2005 are likely to be in the JVM itself, I was wondering (given the large spread between the OS's) if there were other typical opportunities to tune the Linux kernel for JVM performance and SPECjbb_2005. There are some other results showing excellent scalability with SPECjbb_2005 on Linux/Itanium (such as SGI's: http://www.spec.org/jbb2005/results/res2006q2/ ), but it's not clear if there are other opportunities for tuning unique to Linux on Opteron, or Linux in general that should be explored Comments? -kp