"Luis Alberto Amigo Navarro" <lamigo@atc.unican.es> writes:
> If i track a single backend during an 8 read-only queries parallel execution
> these are the results(
> System call summary:
> Average Total
> Name #Calls Time(ms) Time(ms)
> -----------------------------------------
> semop 3803 0.20 774.03
> select 4 19.58 78.33
> recv 1 2.41 2.41
> brk 6 0.08 0.48
> close 1 0.14 0.14
> send 1 0.14 0.14
> semctl 1 0.05 0.05
> prctl 1 0.01 0.01
> exit 1 0.00 0.00
Considering that there are no read() or write() calls listed, and that
8 client queries would surely require at least one send() and one recv()
apiece, I don't think I believe a word of those stats. Well, maybe the
1 exit() is correct ;-)
regards, tom lane
