Suggestions for benchmarking 7.4RC2 against 7.3

Hi,

I plan to put 7.4-RC2 in our production servers in next few hours.

Since the hardware config & the performance related GUCs parameter
are going to remain the same i am interested in seeing the performance
improvements in 7.4 as compared 7.3 .

For this i plan to use the OSDB 0.14 and compare the results for both the
cases.

Does any one has suggestions for comparing 7.4 against 7.3 ?
Since i am using OSDB for second time only any tips/guidance
on usage of that is also appreciated.

H/W config:

CPU: 4 X Intel(R) Xeon(TM) CPU 2.00GHz
MEM : 2 GB
I/O config : PGDATA on 10000 RPM Ultra160 scsi , pg_xlog on a similar
seperate SCSI

GUC:
shared_buffers = 10000
max_fsm_relations = 5000
max_fsm_pages = 55099264
sort_mem = 16384
vacuum_mem = 8192

All other performance related parameter have default
value eg:

#effective_cache_size = 1000 # typically 8KB each
#random_page_cost = 4 # units are one sequential page fetch cost
#cpu_tuple_cost = 0.01 # (same)
#cpu_index_tuple_cost = 0.001 # (same)
#cpu_operator_cost = 0.0025 # (same)

BTW i get following error at the moment:
-----------------------------------------
/usr/local/bin/osdb-pg-ui --postgresql=no_hash_index
"osdb"
"Invoked: /usr/local/bin/osdb-pg-ui --postgresql=no_hash_index"

create_tables() 0.78 seconds return value = 0
load() 1.02 seconds return value = 0
create_idx_uniques_key_bt() 0.64 seconds return value = 0
create_idx_updates_key_bt() 0.61 seconds return value = 0
create_idx_hundred_key_bt() 0.61 seconds return value = 0
create_idx_tenpct_key_bt() 0.62 seconds return value = 0
create_idx_tenpct_key_code_bt() 0.45 seconds return value = 0
create_idx_tiny_key_bt() 0.46 seconds return value = 0
create_idx_tenpct_int_bt() 0.46 seconds return value = 0
create_idx_tenpct_signed_bt() 0.45 seconds return value = 0
create_idx_uniques_code_h() 0.46 seconds return value = 0
create_idx_tenpct_double_bt() 0.46 seconds return value = 0
create_idx_updates_decim_bt() 0.45 seconds return value = 0
create_idx_tenpct_float_bt() 0.46 seconds return value = 0
create_idx_updates_int_bt() 0.46 seconds return value = 0
create_idx_tenpct_decim_bt() 0.46 seconds return value = 0
create_idx_hundred_code_h() 0.45 seconds return value = 0
create_idx_tenpct_name_h() 0.46 seconds return value = 0
create_idx_updates_code_h() 0.46 seconds return value = 0
create_idx_tenpct_code_h() 0.45 seconds return value = 0
create_idx_updates_double_bt() 0.46 seconds return value = 0
create_idx_hundred_foreign() 0.41 seconds return value = 0
populateDataBase() 11.54 seconds return value = 0

Error in test Counting tuples at (6746)osdb.c:294:
... empty database -- empty results
perror() reports: Resource temporarily unavailable

someone sighup'd the parent

Any clue?

------------------------------------------

Regards
Mallah.