[omniORB] more Questions about oneway and asynchronous messages...

[Rusty Carruth]

> 
> OTOH, unless you try this, you don't know that it's worse performance.
> Spawning a thread should be low overhead.  We have found that changing one-way
> calls to non-one way does not effect performance (in our applications) as much
> as might be expected.
> 

The only thing that might surprise you is memory usage when you spawn
a thread (suprise if and only if you've not paused a bit to think about
it ;-).

On Solaris, you get something like 1meg of stack space allocated
(I think its virtual and not actually USED until you use enough 
to need another chunk).  So if you spawn 100 threads and don't 
tell the OS to allocate a different stack (and so forth) space 
then you've just burned 100 meg....  Its obviously a good idea 
to try to not need 1 meg per thread, in this case, unless you 
(like us) have LOTS of memory (well, ok what USED to be 
considered lots of memory - 750 meg ;-)

rc

-----
rusty@azfms.com		rustyc@inficad.com	rusty@descomp.com

(If this message is short, then its not meant to be curt,
its meant to be quick.  If its long, well, sorry about
that ;-)