with syslog:

[cmd@db01 ~]$ ./dbtest 
PQconnectdb in 0.005665 seconds
PQexec in 4.383391 seconds
PQclear, PQfinish in  0.000034 seconds
PQconnectdb in 0.002448 seconds
PQexec in 40.929807 seconds
PQclear, PQfinish in  0.000116 seconds
Repeating test via localhost
PQconnectdb in 0.006670 seconds
PQexec in 4.766651 seconds
PQclear, PQfinish in  0.000090 seconds
PQconnectdb in 0.002695 seconds
PQexec in 40.788857 seconds
PQclear, PQfinish in  0.000078 seconds

without syslog:

[cmd@db01 ~]$ ./dbtest 
PQconnectdb in 0.004278 seconds
PQexec in 4.036757 seconds
PQclear, PQfinish in  0.000041 seconds
PQconnectdb in 0.002979 seconds
PQexec in 3.792376 seconds
PQclear, PQfinish in  0.000039 seconds
Repeating test via localhost
PQconnectdb in 0.003386 seconds
PQexec in 3.505554 seconds
PQclear, PQfinish in  0.000054 seconds
PQconnectdb in 0.002629 seconds
PQexec in 4.336932 seconds
PQclear, PQfinish in  0.000050 seconds
[cmd@db01 ~]$