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Testing server 'PostgreSQL version ???' at 2001-06-03 16:37:16
Testing the speed of selecting on keys that consist of many parts
The test-table has 10000 rows and the test is done with 500 ranges.
Creating table
Inserting 10000 rows
Time to insert (10000): 10 wallclock secs ( 2.96 usr 0.39 sys + 0.00 cusr 0.00 csys = 3.35 CPU)
Test if the database has a query cache
Time for select_query_cache (10000): 2549 wallclock secs ( 3.25 usr 0.52 sys + 0.00 cusr 0.00 csys = 3.77 CPU)
Time for select_query_cache2 (10000): 2547 wallclock secs ( 3.04 usr 0.53 sys + 0.00 cusr 0.00 csys = 3.57 CPU)
Testing big selects on the table
Time for select_big (70:17207): 1 wallclock secs ( 0.17 usr 0.00 sys + 0.00 cusr 0.00 csys = 0.17 CPU)
Time for select_range (410:1057904): 465 wallclock secs (10.41 usr 0.63 sys + 0.00 cusr 0.00 csys = 11.04 CPU)
Note: Query took longer then time-limit: 600
Estimating end time based on:
11326 queries in 1618 loops of 10000 loops took 601 seconds
Estimated time for min_max_on_key (70000): 3714 wallclock secs (20.15 usr 3.46 sys + 0.00 cusr 0.00 csys = 23.61 CPU)
Note: Query took longer then time-limit: 600
Estimating end time based on:
17320 queries in 3464 loops of 10000 loops took 601 seconds
Estimated time for count_on_key (50000): 1734 wallclock secs (15.76 usr 1.99 sys + 0.00 cusr 0.00 csys = 17.75 CPU)
Time for count_group_on_key_parts (1000:100000): 331 wallclock secs ( 1.13 usr 0.06 sys + 0.00 cusr 0.00 csys = 1.19 CPU)
Testing count(distinct) on the table
Time for count_distinct_key_prefix (1000:1000): 179 wallclock secs ( 0.28 usr 0.07 sys + 0.00 cusr 0.00 csys = 0.35 CPU)
Time for count_distinct (1000:1000): 132 wallclock secs ( 0.31 usr 0.06 sys + 0.00 cusr 0.00 csys = 0.37 CPU)
Time for count_distinct_2 (1000:1000): 213 wallclock secs ( 0.37 usr 0.03 sys + 0.00 cusr 0.00 csys = 0.40 CPU)
Time for count_distinct_group_on_key (1000:6000): 488 wallclock secs ( 0.41 usr 0.03 sys + 0.00 cusr 0.00 csys = 0.44 CPU)
Time for count_distinct_group_on_key_parts (1000:100000): 383 wallclock secs ( 1.10 usr 0.07 sys + 0.00 cusr 0.00 csys = 1.17 CPU)
Time for count_distinct_group (1000:100000): 384 wallclock secs ( 1.07 usr 0.08 sys + 0.00 cusr 0.00 csys = 1.15 CPU)
Time for count_distinct_big (100:1000000): 65 wallclock secs ( 7.88 usr 0.25 sys + 0.00 cusr 0.00 csys = 8.13 CPU)
Estimated total time: 13197 wallclock secs (68.30 usr 8.18 sys + 0.00 cusr 0.00 csys = 76.48 CPU)
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