Date: Thu, 08 Jul 2004 13:26:53 +0900 From: Eitarou Kamo <e-kamo@trio.plala.or.jp> To: David Schultz <das@FreeBSD.ORG>, freebsd-hackers@FreeBSD.ORG Subject: Re: Article on Sun's DTrace Message-ID: <40ECCD0D.7030703@trio.plala.or.jp> In-Reply-To: <20040708034845.GA59801@VARK.homeunix.com> References: <20040706120130.3DF9816A57D@hub.freebsd.org> <20040706101140.T92636@bowser.eecs.harvard.edu> <40EB9A46.2050409@trio.plala.or.jp> <20040708034845.GA59801@VARK.homeunix.com>
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Hi David, David Schultz wrote: >On Wed, Jul 07, 2004, Eitarou Kamo wrote: > > >>FreeBSD has good features such as jail, chroot e.t.c. which can controll >> >> > >Solaris 10 has these features, too, but I'm not sure what that has >to do with DTrace. > > If You use the feature with DTrace like tool, You can operate it in parallel. This is just a idea. I know Sol10 has chroot or zfs which behave like jail. What I'd like to say is that you need not insist on just DTrace you can develop original one. > > > >The page referenced earlier in this thread pointed out that 6 >staff-years went into DTrace. That's accurate, and we're not >talking about part-time employees or people who don't know what >they're doing. The D compiler aside, this is not a small matter >of programming that can just be ported to a new OS or machine >architecture in a few months. > > I think so. If you develop the DTrace like tool, you need the resources at least equivalent with DTrace team, I guess. If you do, your develop team will make any action to get a resources. >That said, there is prior work in this area, such as: >http://oss.software.ibm.com/developer/opensource/linux/projects/dprobes/ >But these other efforts don't come close to DTrace. > > > -- *********************** 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 ************************************************************************
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