From owner-freebsd-java Wed Oct 4 9:16:32 2000 Delivered-To: freebsd-java@freebsd.org Received: from ns.yogotech.com (ns.yogotech.com [206.127.123.66]) by hub.freebsd.org (Postfix) with ESMTP id 5023A37B502 for ; Wed, 4 Oct 2000 09:16:29 -0700 (PDT) Received: from nomad.yogotech.com (nomad.yogotech.com [206.127.123.131]) by ns.yogotech.com (8.9.3/8.9.3) with ESMTP id KAA22143; Wed, 4 Oct 2000 10:16:27 -0600 (MDT) (envelope-from nate@nomad.yogotech.com) Received: (from nate@localhost) by nomad.yogotech.com (8.8.8/8.8.8) id KAA00401; Wed, 4 Oct 2000 10:16:27 -0600 (MDT) (envelope-from nate) Date: Wed, 4 Oct 2000 10:16:27 -0600 (MDT) Message-Id: <200010041616.KAA00401@nomad.yogotech.com> From: Nate Williams MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: behanna@zbzoom.net Cc: FreeBSD-Java Subject: Re: Sun Keynote at JavaCon2000 In-Reply-To: References: <200010041557.JAA00298@nomad.yogotech.com> X-Mailer: VM 6.34 under 19.16 "Lille" XEmacs Lucid Reply-To: nate@yogotech.com (Nate Williams) Sender: owner-freebsd-java@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > > > > Oh man, is that ever good news. But we'll wait and see. > > > > > > > > [...Sun announced that JDK 1.3 will be ported to FreeBSD...] > > > > > > I hope they'll port HotSpot while they're at it. The performance > > > improvement is dramatic. > > > > In order to get 'dramatic' performance, we need kernel threads. FreeBSD > > doesn't (yet) have kernel threads. > > I don't disagree; however, my own experience was that the quality > of the JIT makes an enormous difference (factor of ten, by my > observation: IBM JDK 1.3.0's JVM executes the LINPACK benchmark ten > times faster than Blackdown's 1.2.2 or Kaffe's JVM). I didn't make myself clear. In order for HotSpot to have dramatic performance improvements, we need kernel threads. HotSpot assumes that multiple system calls can be made at the same time, and as such *requires* kernel threads. (At least, this is the consensus we came up with while talking with the Sun engineers.) Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-java" in the body of the message