Re: New Feature Idea: Compress swap file

Joel Jaeggli (joelja@darkwing.uoregon.edu)
Sun, 8 Mar 1998 17:17:40 -0800 (PST)


Well you're smoking some pretty good rock if you believe harddrives based
on alien technology are going to appear at you local fry's electronics
anytime soon. Let me clue you in, You have to meet some aliens before you
can appropiate their technology. Next thing you're going to tell us is
that you're currently using heeche prayer fans instead of zip disks for
removable media...

check out:

http://www.seagate.com/corp/vpr/quinta/quintop.shtml

if you actaully want to see a fixed disk technlogoy that will affect you
in 2-5 years.

joelja

On Tue, 10 Mar 1998, BlueFlux wrote:

>
>
> This is realy not my area but i got an mail about this some days ago on
> another mailing list. What it said was the an company called american
> technologies are about to develop an new HD deriving from alien
> technology(yes of course this sounds like total bullshit, but that
> probably isnt more than some promotional thing to make themselfs heard
> of). Anyways, these new HD's would have something like an average seek
> time of 0.000? ms and an capacity of some 60 megs/second. This isnt all
> but they also said their first production lines would be able to handle
> about 90 gigs of space..it would also have NO moving parts which would
> have any degree of wearage(sp?)!
>
> Ok so what is my point then? With there would be no meaning of making any
> compression on the swap files as there would be enough speed in these new
> harddrives to kick ass without any compression.
>
> (disclamer: sorry for being an bit unclear but im pretty tired right now
> and i might have gotten some things wrong.)
>
> If someone would want more info i might dig the original message out from
> the others and send his way or perhaps even to the list.
>
> On Thu, 5 Mar 1998, MOLNAR Ingo wrote:
>
> >
> >
> > On Thu, 5 Mar 1998, Rik van Riel wrote:
> >
> > > On Wed, 4 Mar 1998, Marty Leisner wrote:
> > >
> > > > Any hard numbers on cpu time versus disk wait? Also how much
> > > > compression will be achieved...
> > >
> > > Disk transfer time is absolutely minimal, especially when
> > > compared to disk seek time...
> > > And disk seek time isn't at all affected by swap compression.
> > > If you want swap performance, clustering and read-ahead are
> > > the way to go.
> >
> > it is affecting seek times .. a 2-times compression thing means the size
> > of the swap area is halved as well, thus average seeks are halved as well.
> > (if you use a separate swap device and swap fragmentation isnt too high,
> > ie. the swap set is a ~1.0 dimensional fractal ;)
> >
> > -- mingo
> >
> >
> > -
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> >
> -------------------------------------------
> http://blueflux.home.ml.org
> -------------------------------------------
> <Bill_Gates> Where do you want to go today?
> <Phase_5> Where do go tomorrow?
> <BlueFlux> Where were you yesterday?!?!
> -------------------------------------------
> -BlueFlux
>
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.rutgers.edu
>

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Joel Jaeggli joelja@darkwing.uoregon.edu
Academic User Services consult@gladstone.uoregon.edu
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