Date: Mon, 05 Jul 2004 23:00:05 +0900 From: Eitarou Kamo <e-kamo@trio.plala.or.jp> To: Volker Stolz <vs@freebsd.org>, freebsd-hackers@freebsd.org Subject: Re: Article on Sun's DTrace Message-ID: <40E95EE5.1060907@trio.plala.or.jp> In-Reply-To: <20040705133203.GA75345@i2.informatik.rwth-aachen.de> 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>
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Hi Volker and all,
Volker Stolz wrote:
>In local.freebsd-hackers, you wrote:
>
>
>>I haven't seen above well yet. But A article says that DTrace sounds
>>like 30,000 lines of debug print.
>>
>>
>
>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.
>
>Volker
>
>
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
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