From owner-freebsd-hackers@FreeBSD.ORG Mon Jul 5 14:48:53 2004 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C768B16A4CF for ; Mon, 5 Jul 2004 14:48:53 +0000 (GMT) Received: from mps7.plala.or.jp (c150240.vh.plala.or.jp [210.150.150.240]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9B8E043D58 for ; Mon, 5 Jul 2004 14:48:52 +0000 (GMT) (envelope-from e-kamo@trio.plala.or.jp) Received: from msvc1.plala.or.jp ([172.23.8.209]) by mps7.plala.or.jp with SMTP id <20040705144851.LXWH18364.mps7.plala.or.jp@msvc1.plala.or.jp> for ; Mon, 5 Jul 2004 23:48:51 +0900 Received: ( 5276 invoked from network); 5 Jul 2004 23:48:51 +0900 X-SVCK: Received: from unknown (HELO mpb1.plala.or.jp) (172.23.8.16) by msvc1 with SMTP; 5 Jul 2004 23:48:50 +0900 Received: from trio.plala.or.jp ([219.25.148.126]) by mpb1.plala.or.jp with ESMTP id <20040705144850.WIFR19716.mpb1.plala.or.jp@trio.plala.or.jp> for ; Mon, 5 Jul 2004 23:48:50 +0900 Message-ID: <40E96BDE.7090102@trio.plala.or.jp> Date: Mon, 05 Jul 2004 23:55:26 +0900 From: Eitarou Kamo User-Agent: Mozilla/5.0 (Windows; U; Win98; ja-JP; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: ja MIME-Version: 1.0 To: freebsd-hackers@freebsd.org References: <20040630011635.GF34501@empiric.dek.spc.org> <20040705103747.GA20487@VARK.homeunix.com> <40E95653.6020705@trio.plala.or.jp> <20040705133203.GA75345@i2.informatik.rwth-aachen.de> <40E95EE5.1060907@trio.plala.or.jp> In-Reply-To: <40E95EE5.1060907@trio.plala.or.jp> X-Enigmail-Version: 0.76.8.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: Article on Sun's DTrace X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Jul 2004 14:48:53 -0000 Hi, Eitarou Kamo wrote: > >> No, already the first article tells you that they use a VM with >> byte-code >> for the C-like language "D". And it's not compiled into the kernel but >> hooked in and removed on-the-fly. >> >> > I don't know langage "D" well. But my guess is that they trim the info > valuable from the debug print outputs. Sorry I haven't read the > articles compleately yet. > > Eitarou > Again DTrace seems to observe the resources via system analyze tool and command. But language "D" seems to be great enough to call C/C++ function or even assembler. -- *********************** Eitarou Kamo Tel. +81 75 7035997 Fax +81 75 7035997 VoIP 050 10585997(domestic only) e-mail e-kamo@trio.plala.or.jp For business: Feel free to mail me(above), please. Donation http://www.PayPal.Com GPG FingerPrint: 032D FDF9 D27B 23F7 9A81 BF4C 626C FBAA BC3A 9895 ************************************************************************