From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Tue, 04 Mar 2003 18:06:50 +0000 (GMT) Received: from gateway-1237.mvista.com ([IPv6:::ffff:12.44.186.158]:29180 "EHLO orion.mvista.com") by linux-mips.org with ESMTP id ; Tue, 4 Mar 2003 18:06:49 +0000 Received: (from jsun@localhost) by orion.mvista.com (8.11.6/8.11.6) id h24I6i425984; Tue, 4 Mar 2003 10:06:44 -0800 Date: Tue, 4 Mar 2003 10:06:44 -0800 From: Jun Sun To: TAKANO Ryousei Cc: linux-mips@linux-mips.org, jsun@mvista.com Subject: Re: JVM under Linux on MIPS Message-ID: <20030304100644.B25862@mvista.com> References: <20030302121820.A30790@linux-mips.org> <20030304011459.457.qmail@web13302.mail.yahoo.com> <20030304171340.1a9af44d.takano@os-omicron.org> <007701c2e22c$66e30e70$10eca8c0@grendel> <20030304190902.68ffd5bb.takano@os-omicron.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20030304190902.68ffd5bb.takano@os-omicron.org>; from takano@os-omicron.org on Tue, Mar 04, 2003 at 07:09:02PM +0900 Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 1619 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: jsun@mvista.com Precedence: bulk X-list: linux-mips On Tue, Mar 04, 2003 at 07:09:02PM +0900, TAKANO Ryousei wrote: > Hi Kevin, > > > I'm very pleased to hear that you got it running on a Vr41xx, > > but I'm curious about the JIT behavior you saw. I can believe > > that it could run "hello world", but does it really pass all the > > internal regression tests ("make check")? Are you running > > a "normal" MIPS/Linux distribution which assumes a > > hardware FPU and does kernel emulation where necessary, > > or are you using a purely soft-float environment? I ask > > this because most of the problems I have with the JIT are > > in areas where mixed integer/floating arguments are being > > passed, and those might not be an issue with soft-float. > > > I have cross-compiled Kaffe, so it did not pass "make check". > I tried it under a Linux-VR kernel(kernel-2.4.0-test9) which is > enabled with a kernel FPU emulation. > I have not tried under a Linux/MIPS kernel. > Java VM typically uses massive threading. Emulating ll/sc instructions for vr4181a might one of the biggest causes of delay. Jun