Signals and context switches
David R. Stampf
drs at bnlux1.bnl.gov
Sun Jun 16 11:06:26 AEST 1991
I just wrote two short programs.
program 1 sends a SIGUSR1 signal to program 2, then waits to
receive a SIGUSR1 signal from program 2. It repeats this 100
times.
program 2 just catches SIGUSR1 signals from program 1 and sends
a SIGUSR1 signal back.
What surprises me is that it takes 70 seconds to send the 100
signals back and forth!
Is it possible to get better timing on this? I guess what I'd
like to do is to force a context switch when I send the signal
and get much better "turn" around.
Any help is appreciated.
< dave stampf
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