Re: [Devil-linux-develop] stuff on CD and memory usage

[Heiko Z. <hz...@pr...>]

On 07/14/2003 11:11:03 AM Bruce Smith wrote:
>> >But, I think it's worth testing on Daemons.  It's very likely that
>once
>> >a program is loaded into memory that it won't need to access the CD=

>> >after it's started.  Filesystem cache should take care of much of
>this.
>> >We should test this.  If it works without spinning the CD, then I'm=

>all
>> >for moving possible to CD.
>>
>> I also think once the daemon is up and  running, there shouldn't be
>any
>> more access to the media.
>> I'm not certain how it is handled with libraries, does Linux load th=
em
>> entirely into memory?
>
>I think that shared libraries are NOT loaded entirely in memory.

Bad.

>As long as the daemons are doing mostly the same task, they should hav=
e
>all of their required code loaded in memory.  I don't think it'll be a=

>problem.  But it would be worth testing it out.

I would expect a behavior like this.

>If we move everything possible to media, how low do you think we can g=
o?
>I'd love to see the memory requirements drop to 32MB for a bare bones
>firewall.

I did a quick test and moved all binaries and libs from the ramdisk to =
CD
and was able to boot with 40 MB.
I'm pretty sure we could improve this.

cya
  Heiko
=