how fast is signal handling

[dave at uwvax.ARPA]

You left out some important info, like what version of UN*X you're
running and on what (I'd expect slowness on a PC).  Anyway, I tried
it out.

I got the time (from gettimeofday(), sent the signal, printed a message
with the time, and exited.
The receiver was busywaiting.  When it got the signal, it
trapped, got the time, printed it, and exited.

The load was app. 0.5.  Anyway, The signal was received in app. 2/100 sec.

I tried this on a VAX 11/780 running 4.2BSD.

-- 
Dave Cohrs @ wisconsin
...!{allegra,heurikon,ihnp4,seismo,ucbvax,uwm-evax}!uwvax!dave
dave at wisc-rsch.arpa