🚀 go-pugleaf

>Has anyone modified the Sun X.V10R4 server to use the new shared memory
>facilities available in SunOS 3.2 and above for connections to the local
>server?

Before somebody runs off to do this, note:

	1) The shared memory facilities are a system generation
	option, just as they are in vanilla S5R2 distributions;
	"machine Y is running SunOS 3.2" does not imply "machine Y
	will support the S5 shared memory calls".

	2) In the current implementation, shared memory pages are
	wired down.  (The phrase "current" is significant; see the
	paper "Virtual Memory Architecture in SunOS" at the upcoming
	USENIX for information on potential bases for future
	implementations, as well as for different shared memory
	facilities.)

>Does/would this lead to serious performance improvements?

That would depend, in part, on what scheme you use for obtaining
exclusive access to data structures in shared memory.  It would be an
interesting experiment, but I'm not about to place bets on the
result.  (Note also that Ultrix also supports the S5 shared memory
stuff.