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Re: killer net app
On Thu, 31 Jul 1997, Ira Abramov wrote:
> ok, the idea is this... what if you could detach an entire process, along
> with memory allocation and open files, freeze it into a file and thaw it
> on a different machine?
It's been on the MF area for many, many years.
For UNIX, similar thing was Done about 10 years ago, at least in one
place - HUJI. Also the was the Pheonix project.
I worked in that project untill about 5 years ago. We then did it for BSDI
on Pentiums. Today you can login to a 64 200Mhz Pentium Pro machines,
which behave as ONE unix. The diffrence is that we didn't freeze the
process, just migrated it to another machine.
To freeze a process ? This is difficult. There are numerous data
structures in the kernel that you have to keep. Just the process table can
be a mess. I don't think UNIX's design fits for that. Doing that on JavaOS
is much easier.
If you want to start a techinical discussion of how-to-do-that, pliz mail
me.
>
> uses? countless... move a compilation to a faster machine after it
> started, maybe even on the fly (reminds anyone in huji of Prof. Barak's
> monster?). freeze your sessions in the X windows and continue at home at
> leisure. freeze a process at a specific breakpoint, then thaw it at that
> point again and again for various break points (worth gold for beta
> testing uses), send someone a program's demo as a started process without
> a binary he can use and reinstall, and probably a thousand crazy uses in
> client-server load balancing circus acts...
>
> for all I know there may be someone working on something like that as we
> speak, I think it's worth donating effort into.
>
> -------------------------------------------------------------
> Ira Abramov <ira@scso.com> Scalable Solutions
> POBox 3600, Jerusalem 91035, Israel Tel (972)2-642-6822
> http://www.scso.com/~ira Check out: http://www.linux.org.il
>
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