just curious

[Kip Macy]

One thing that might be harder: I was looking to reduce the effect of 
the boundary crossing by taking a series of independent system calls and 
queuing them up and tossing them over the boundary together. That way 
you would be able to, for example, queue writes to multiple files, 
devices, or sockets in a single system call.

But now that I think of it you could implement a Send() function that 
did the same thing.

I think implementing support for multiple requests is much easier than
exporting it under a normal API. NFS has a similar sort of problem with 
latency, which NFSv4 tries to address with compound. However, there 
isn't really any support on clients for say stat file x - if it has 
changed read bytes i - j and then write z to byte k.

           -Kip