[comp.os.os2.misc] Efficiency of DosDevioctl

bbaker@na.novell.com (Brad Baker) (12/01/90)

I have a question for the gurus up at Microsoft (Letwin?).

If one was to create a callgate entry point in the fast-path of 
a protocol stack, say the Netbios driver's entry point,    
what kind of throughput increase, if any, could we see?

I have no idea what the kernel may be doing during a DevIOCtl
call, save fuct. and cat. demuxing and ring transition.       


Inquiring minds want to know.

Brad Baker
bbaker@novell.com