Date: Mon, 05 Jul 2004 23:55:26 +0900 From: Eitarou Kamo <e-kamo@trio.plala.or.jp> To: freebsd-hackers@freebsd.org Subject: Re: Article on Sun's DTrace Message-ID: <40E96BDE.7090102@trio.plala.or.jp> In-Reply-To: <40E95EE5.1060907@trio.plala.or.jp> 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>
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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.
--
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