I have a laptop which I'd like to use as a mobile synth-effects processor. 
However the latency it has for realtime operations is too much for it to be 
used effectively. How can I find out where the latency is, to see if it is 
fixable? I mean: if I can somehow determine that the latency is in the 
soundcard, then I can buy a new one and solve the problem. OTOH, if the 
latency is in the PCI bus, then I don't have much to do other than buy a new 
laptop.

A simple instrument in csound like this
instr 1
	asig in
	out asig
endin

still has some latency.

-- 
Felipe Sateler