select-mysql-Linux_2.4.0_64GB_SMP_i686-cmp-mysql,pg 2.13 KB
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Testing server 'MySQL 3.23.39' at 2001-06-05 14:41:13

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):  5 wallclock secs ( 0.80 usr  0.34 sys +  0.00 cusr  0.00 csys =  1.14 CPU)

Test if the database has a query cache
Time for select_query_cache (10000): 120 wallclock secs ( 3.67 usr  0.53 sys +  0.00 cusr  0.00 csys =  4.20 CPU)

Time for select_query_cache2 (10000): 120 wallclock secs ( 3.80 usr  0.57 sys +  0.00 cusr  0.00 csys =  4.37 CPU)

Testing big selects on the table
Time for select_big (70:17207):  1 wallclock secs ( 0.15 usr  0.07 sys +  0.00 cusr  0.00 csys =  0.22 CPU)
Time for select_range (410:1057904): 201 wallclock secs ( 9.05 usr  3.95 sys +  0.00 cusr  0.00 csys = 13.00 CPU)
Time for min_max_on_key (70000): 222 wallclock secs (23.16 usr  3.67 sys +  0.00 cusr  0.00 csys = 26.83 CPU)
Time for count_on_key (50000): 534 wallclock secs (16.58 usr  2.69 sys +  0.00 cusr  0.00 csys = 19.27 CPU)

Time for count_group_on_key_parts (1000:100000): 58 wallclock secs ( 1.16 usr  0.35 sys +  0.00 cusr  0.00 csys =  1.51 CPU)
Testing count(distinct) on the table
Time for count_distinct_key_prefix (1000:1000): 51 wallclock secs ( 0.45 usr  0.08 sys +  0.00 cusr  0.00 csys =  0.53 CPU)
Time for count_distinct (1000:1000): 60 wallclock secs ( 0.42 usr  0.08 sys +  0.00 cusr  0.00 csys =  0.50 CPU)
Time for count_distinct_2 (1000:1000): 63 wallclock secs ( 0.18 usr  0.03 sys +  0.00 cusr  0.00 csys =  0.21 CPU)
Time for count_distinct_group_on_key (1000:6000): 59 wallclock secs ( 0.51 usr  0.07 sys +  0.00 cusr  0.00 csys =  0.58 CPU)
Time for count_distinct_group_on_key_parts (1000:100000): 194 wallclock secs ( 1.12 usr  0.46 sys +  0.00 cusr  0.00 csys =  1.58 CPU)
Time for count_distinct_group (1000:100000): 194 wallclock secs ( 1.21 usr  0.37 sys +  0.00 cusr  0.00 csys =  1.58 CPU)
Time for count_distinct_big (100:1000000): 67 wallclock secs ( 7.77 usr  3.16 sys +  0.00 cusr  0.00 csys = 10.93 CPU)
Total time: 1949 wallclock secs (70.03 usr 16.42 sys +  0.00 cusr  0.00 csys = 86.45 CPU)