Without caching, a lot. When you cache the file nearby /cmd, and
you avoid copying if you can do so, it´s not so slow (don´t have numbers
right now, sorry).

On 6/10/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
it is interesting that plan 9 could be rearranged as a classic µkernel, using
9p for message passing.  a process server could do just that.
before you kill me, note the difference between "interesting" and "better." ☺

how much slower is an exec over /cmd than via fork(2)/exec(2)?

- erik

On Fri Jun  9 16:59:40 CDT 2006, [EMAIL PROTECTED] wrote:
> Well, in Plan B we made an experimental /cmd, where processes
> were files in the sense that mkdir created one process, cp was used
> to supply the binary and the like. It did work, but it seemed more
> convenient to use the distributed plumbing to deliver cmd execution
> requests, and then, ox, the shell underlying omero, is in charge of
> executing the commands. Now we are back into /proc.


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