[tlug] Fwd: Re: Accelerated knoppix: I'm impressed!!!

[Goh Lu Feng <elfgoh@example.com>]

Hi there,

I've recently tried Accelerated Knoppix. I'm pretty
impressed with the reduced boot times. I was just
wondering if any folks here would be interested in
helping with the English documentation of the
developers. 

The current one is mainly in Japanese. Though there is
a short English description, but that hardly does
justice to the full text. Although my friends and I
would like to contribute, but we do not understand
Japanese. So I'm hoping that I'll have some luck
here....

Anyway, the main webpage is at
http://www.alpha.co.jp/ac-knoppix/index_en.html

The manual can be found at
http://prdownloads.sourceforge.jp/lcat/19117/lcat_1.0.0_manual.pdf

If u r interested, then maybe can contact the
developers? Juz in case they have gotten someone to do
it already.

(Btw, I'm not a developer)

Cheers.

--- Harish Mallipeddi <harish.mallipeddi@example.com>
wrote:

> To: linuxNUS@example.com
> From: "Harish Mallipeddi"
> <harish.mallipeddi@example.com>
> Date: Fri, 10 Mar 2006 02:51:18 +0800
> Subject: Re: [linuxNUS] Re: Accelerated knoppix: I'm
> impressed!!!
> 
> On 3/10/06, ruiwen <rwchua@example.com> wrote:
> >
> > On 10 March 2006 am 00:17, Goh Lu Feng wrote:
> > > --- In linuxNUS@example.com, Goh Lu Feng
> <elfgoh@example.com> wrote:
> > >
> > > I've juz tried accelerated Knoppix on my pc:
> Celeron 2.53Ghz 480MB
> > > ram. 52x CDrom.
> > >
> > > I booted into KDE in 45s using DMA option. I
> think it's possible to
> > > boot into command line under 25s. It's quite a
> big improvement from
> > > the original Knoppix. I wonder what kind of
> speed can be acheived if
> > > the boot used an iso on the hardisk.
> > >
> > > The only grouse i have is that the default
> language is Japanese. But
> > > that was easily remedied with a cheat code.
> > >
> > > I haven't found any bugs thus far, though I
> didn't fiddle wif it much.
> > > Everything seems to be working fine... Let's
> hope this technology gets
> > > implemented on other Knoppix based distros.
> > >
> > > Anybody else wants it? If yes, then maybe we can
> suggest putting the
> > > iso on sc ftp?
> > >
> >
> > Features-wise? Same as the standard Knoppix?
> >
> > rw
> >
> >
> How they achieved this?
> 
> The way they've tried to optimize the LiveCD boot up
> time is quite
> interesting. If you go to their website -
> http://www.alpha.co.jp/ac-knoppix/index_en.html , it
> pretty much summarises
> what optimisation techniques they've used (the
> English is horrible - looks
> like they've used some Japanese -> English online
> translator!)
> 
> Optimisation 1:-
> 
> They've basically run the entire Knoppix cloop
> filesystem in a custom-built
> profiler to figure out exactly which files (and
> hence which blocks) are
> being seeked in which order during the bootup
> process. As you might know,
> seeking a block in a CD is expensive - so they've
> basically optimised the
> way the files have been written on to the CD and
> also the way the files are
> accessed during boot-up so that min. seeking occurs
> --> and that saves time!
> A pretty simple trick :)
> 
> Read more about Cloop here:
> http://en.wikipedia.org/wiki/Cloop
> 
> Optimisation 2:-
> 
> I don't quite understand what they were trying to
> say - this time the
> English is much worse than the first time. It looks
> like they figure out
> what hardware your system has the first time you run
> it, and then subsequent
> times, instead of explicitly probing all hardware
> unlike normal distros, it
> just assumes the same hardware configuration
> subsists as the first time.
> Hence, you save time because you do not go through
> the elaborate hardware
> detection step during each bootup :) Anyways, I'm
> not sure if this is what
> they're doing - I'd to come up with lot of
> imagination to fill in the gaps
> in the big picture I managed visualise from their
> broken English page.
> 
> They actually have a toolkit on their webpage - LCAT
> - Live CD acceleration
> toolkit. I assume that with LCAT you can basically
> optimise any LiveCD which
> you want similarly as long as it uses Cloop images.
> Again the toolkit's
> documentation is in Japanese only - I didn't try it.
> 
> Ruiwen: So probably the features have not been
> affected. Though optimisation
> 2 (if I visualised it correctly) might cause some
> problems when your
> hardware configuration changes.
> 
> Cheers,
> Harish
> 
> 
> PS: This thing is quite cool - one of us I think
> should volunteer to provide
> them with proper English documentation --- aargh! if
> only I knew Japanese!
> Actually I know a couple of Japanese girls, but
> they're from the Literature
> studies dept - probably for them this is as
> difficult as it is for us :)
> 


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