root@stafford:/a/pgdata# /usr/local/sysbench/bin/sysbench --num-threads=32 --test=oltp --db-driver=postgres --pgsql-host=db12.pmtpa.wmnet  --oltp-table-size=1000000 --db-ps-mode=auto --oltp-read-only=1 --oltp-test-mode=simple --max-requests=100000 --oltp-dist-type=uniform  run
sysbench 0.4.12:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 32

Doing OLTP test.
Running simple OLTP test
Using Uniform distribution
Using "BEGIN" for starting transactions
Using auto_inc on the id column
Maximum number of requests for OLTP test is limited to 100000
Threads started!
Done.

OLTP test statistics:
    queries performed:
        read:                            100119
        write:                           0
        other:                           0
        total:                           100119
    transactions:                        100119 (52711.76 per sec.)
    deadlocks:                           0      (0.00 per sec.)
    read/write requests:                 100119 (52711.76 per sec.)
    other operations:                    0      (0.00 per sec.)

Test execution summary:
    total time:                          1.8994s
    total number of events:              100119
    total time taken by event execution: 60.5853
    per-request statistics:
         min:                                  0.15ms
         avg:                                  0.61ms
         max:                                201.80ms
         approx.  95 percentile:               1.98ms

Threads fairness:
    events (avg/stddev):           3128.7188/156.85
    execution time (avg/stddev):   1.8933/0.00

root@stafford:/a/pgdata# /usr/local/sysbench/bin/sysbench --num-threads=32 --test=oltp --db-driver=postgres --pgsql-host=db20.pmtpa.wmnet  --oltp-table-size=1000000 --db-ps-mode=auto --oltp-read-only=1 --oltp-test-mode=simple --max-requests=100000 --oltp-dist-type=uniform  run
sysbench 0.4.12:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 32

Doing OLTP test.
Running simple OLTP test
Using Uniform distribution
Using "BEGIN" for starting transactions
Using auto_inc on the id column
Maximum number of requests for OLTP test is limited to 100000
Threads started!
Done.

OLTP test statistics:
    queries performed:
        read:                            100122
        write:                           0
        other:                           0
        total:                           100122
    transactions:                        100122 (43927.74 per sec.)
    deadlocks:                           0      (0.00 per sec.)
    read/write requests:                 100122 (43927.74 per sec.)
    other operations:                    0      (0.00 per sec.)

Test execution summary:
    total time:                          2.2792s
    total number of events:              100122
    total time taken by event execution: 72.7546
    per-request statistics:
         min:                                  0.19ms
         avg:                                  0.73ms
         max:                                205.88ms
         approx.  95 percentile:               1.71ms

Threads fairness:
    events (avg/stddev):           3128.8125/229.40
    execution time (avg/stddev):   2.2736/0.00