From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751338AbcFVHyx (ORCPT ); Wed, 22 Jun 2016 03:54:53 -0400 Received: from merlin.infradead.org ([205.233.59.134]:47041 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750799AbcFVHyw (ORCPT ); Wed, 22 Jun 2016 03:54:52 -0400 Date: Wed, 22 Jun 2016 09:54:45 +0200 From: Peter Zijlstra To: Jirka Hladky Cc: linux-kernel@vger.kernel.org, Ingo Molnar , Kamil Kolakowski Subject: Re: Kernel 4.7rc3 - Performance drop 30-40% for SPECjbb2005 and SPECjvm2008 benchmarks against 4.6 kernel Message-ID: <20160622075445.GW30927@twins.programming.kicks-ass.net> References: <20160616172256.GJ30921@twins.programming.kicks-ass.net> <20160622071601.GX30154@twins.programming.kicks-ass.net> <20160622074941.GV30927@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160622074941.GV30927@twins.programming.kicks-ass.net> User-Agent: Mutt/1.5.23.1 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jun 22, 2016 at 09:49:41AM +0200, Peter Zijlstra wrote: > On Wed, Jun 22, 2016 at 09:16:01AM +0200, Peter Zijlstra wrote: > > WTF a benchmark needs that crap is beyond me, but whatever, I have > > numbers. > > Oh, shaft me harder, its XML shite :/ How is a sane person ever going to > get numbers out. > > I'm >.< close to giving up on this site and declaring the thing > -EDONTCARE. OK, done.. have a look at this: /tmp/SPECjvm2008/compiler.compiler/compiler/src/share/classes/javax/lang/model/element/Name.java:54: cannot access java.lang.CharSequence bad class file: spec.benchmarks.compiler.SpecFileManager$CachedFileObject@1c06fce6 bad constant pool tag: 18 at 10 Please remove or make sure it appears in the correct subdirectory of the classpath. public interface Name extends CharSequence { ^ ERROR: compiler exit code: 1 Warmup (120s) begins: Wed Jun 22 09:45:33 CEST 2016 /tmp/SPECjvm2008/compiler.compiler/compiler/src/share/classes/javax/lang/model/element/Name.java:54: cannot access java.lang.CharSequence bad class file: spec.benchmarks.compiler.SpecFileManager$CachedFileObject@1c06fce6 bad constant pool tag: 18 at 10 Please remove or make sure it appears in the correct subdirectory of the classpath. public interface Name extends CharSequence { ^ /tmp/SPECjvm2008/compiler.compiler/compiler/src/share/classes/javax/lang/model/element/Name.java:54: cannot access java.lang.CharSequence bad class file: spec.benchmarks.compiler.SpecFileManager$CachedFileObject@1c06fce6 bad constant pool tag: 18 at 10 Please remove or make sure it appears in the correct subdirectory of the classpath. Clearly this stuff just isn't made to be used. /me goes do something useful.