OCZ pci-e revodrive3 240GB & DELL SSD 2.5 SATA 200GB & SAS 2.5 146GB 10K

./configure --prefix=/home/ocz/pgsql9.2.1 --with-pgport=9201 --with-perl --with-python --with-tcl --with-openssl --with-pam --without-ldap --with-libxml --with-libxslt --enable-thread-safety --with-wal-blocksize=16 --enable-debug --with-ossp-uuid --with-libs=/opt/uuid-1.6.2/lib

ocz@db-172-16-3-150-> cat postgresql.conf|grep -i "^\ *[a-z]"
listen_addresses = '0.0.0.0'            # what IP address(es) to listen on;
port = 9201                             # (change requires restart)
max_connections = 1000                  # (change requires restart)
superuser_reserved_connections = 13     # (change requires restart)
unix_socket_directory = '.'             # (change requires restart)
unix_socket_permissions = 0700          # begin with 0 to use octal notation
tcp_keepalives_idle = 60                # TCP_KEEPIDLE, in seconds;
tcp_keepalives_interval = 10            # TCP_KEEPINTVL, in seconds;
tcp_keepalives_count = 10               # TCP_KEEPCNT;
shared_buffers = 1024MB                 # min 128kB
maintenance_work_mem = 512MB            # min 1MB
max_stack_depth = 8MB                   # min 100kB
shared_preload_libraries = 'pg_stat_statements'         # (change requires restart)
bgwriter_delay = 10ms                   # 10-10000ms between rounds
wal_level = hot_standby                 # minimal, archive, or hot_standby
fsync = on                              # turns forced synchronization on or off
synchronous_commit = on         # synchronization level;
wal_sync_method = open_sync             # the default is the first option
full_page_writes = on                   # recover from partial page writes
wal_buffers = 16384kB                   # min 32kB, -1 sets based on shared_buffers
checkpoint_segments = 128               # in logfile segments, min 1, 16MB each
archive_mode = on               # allows archiving to be done
archive_command = '/bin/date'           # command to use to archive a logfile segment
max_wal_senders = 32            # max number of walsender processes
wal_keep_segments = 256         # in logfile segments, 16MB each; 0 disables
hot_standby = on                        # "on" allows queries during recovery
wal_receiver_status_interval = 1s       # send replies at least this often
hot_standby_feedback = on               # send info from standby to prevent
random_page_cost = 1.0                  # same scale as above
effective_cache_size = 90000MB
log_destination = 'csvlog'              # Valid values are combinations of
logging_collector = on          # Enable capturing of stderr and csvlog
log_directory = 'pg_log'                # directory where log files are written,
log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' # log file name pattern,
log_file_mode = 0600                    # creation mode for log files,
log_truncate_on_rotation = on           # If on, an existing log file with the
log_rotation_age = 1d                   # Automatic rotation of logfiles will
log_rotation_size = 10MB                # Automatic rotation of logfiles will
log_checkpoints = on
log_error_verbosity = verbose           # terse, default, or verbose messages
log_timezone = 'PRC'
datestyle = 'iso, mdy'
timezone = 'PRC'
lc_messages = 'C'                       # locale for system error message
lc_monetary = 'C'                       # locale for monetary formatting
lc_numeric = 'C'                        # locale for number formatting
lc_time = 'C'                           # locale for time formatting
default_text_search_config = 'pg_catalog.english'
pg_stat_statements.max = 1000
pg_stat_statements.track = all

digoal=> create table ocz_test(id int, info text, crt_time timestamp without time zone);

digoal=> insert into ocz_test select generate_series(1,10000000),repeat(clock_timestamp()::text, 10),clock_timestamp();
digoal=> alter table ocz_test add constraint ocz_test_pkey primary key (id);