select-pg_fast-Linux_2.4.2_64GB_SMP_i686-cmp-mysql,pg
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:3k
源码类别:
MySQL数据库
开发平台:
Visual C++
- Testing server 'PostgreSQL version 7.1.2' at 2001-06-11 22:43:08
- 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
- Time for book-keeping (1): 1 wallclock secs ( 0.00 usr 0.00 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Inserting 10000 rows
- Time to insert (10000): 16 wallclock secs ( 3.01 usr 0.33 sys + 0.00 cusr 0.00 csys = 3.34 CPU)
- Time for book-keeping (1): 0 wallclock secs ( 0.00 usr 0.00 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Test if the database has a query cache
- Time for select_query_cache (10000): 2643 wallclock secs ( 3.20 usr 0.43 sys + 0.00 cusr 0.00 csys = 3.63 CPU)
- Time for select_query_cache2 (10000): 2642 wallclock secs ( 3.26 usr 0.43 sys + 0.00 cusr 0.00 csys = 3.69 CPU)
- Testing big selects on the table
- Time for select_big (70:17207): 1 wallclock secs ( 0.12 usr 0.01 sys + 0.00 cusr 0.00 csys = 0.13 CPU)
- Time for select_range (410:1057904): 481 wallclock secs (11.87 usr 1.04 sys + 0.00 cusr 0.00 csys = 12.91 CPU)
- Note: Query took longer then time-limit: 600
- Estimating end time based on:
- 12019 queries in 1717 loops of 10000 loops took 601 seconds
- Estimated time for min_max_on_key (70000): 3500 wallclock secs (24.99 usr 4.95 sys + 0.00 cusr 0.00 csys = 29.94 CPU)
- Note: Query took longer then time-limit: 600
- Estimating end time based on:
- 18105 queries in 3621 loops of 10000 loops took 601 seconds
- Estimated time for count_on_key (50000): 1659 wallclock secs (14.19 usr 1.80 sys + 0.00 cusr 0.00 csys = 15.99 CPU)
- Time for count_group_on_key_parts (1000:100000): 332 wallclock secs ( 1.14 usr 0.03 sys + 0.00 cusr 0.00 csys = 1.17 CPU)
- Testing count(distinct) on the table
- Time for count_distinct_key_prefix (1000:1000): 188 wallclock secs ( 0.38 usr 0.02 sys + 0.00 cusr 0.00 csys = 0.40 CPU)
- Time for count_distinct (1000:1000): 131 wallclock secs ( 0.34 usr 0.05 sys + 0.00 cusr 0.00 csys = 0.39 CPU)
- Time for count_distinct_2 (1000:1000): 213 wallclock secs ( 0.38 usr 0.03 sys + 0.00 cusr 0.00 csys = 0.41 CPU)
- Time for count_distinct_group_on_key (1000:6000): 209 wallclock secs ( 0.35 usr 0.09 sys + 0.00 cusr 0.00 csys = 0.44 CPU)
- Time for count_distinct_group_on_key_parts (1000:100000): 382 wallclock secs ( 1.16 usr 0.06 sys + 0.00 cusr 0.00 csys = 1.22 CPU)
- Time for count_distinct_group (1000:100000): 385 wallclock secs ( 1.14 usr 0.09 sys + 0.00 cusr 0.00 csys = 1.23 CPU)
- Time for count_distinct_big (100:1000000): 65 wallclock secs ( 8.53 usr 0.26 sys + 0.00 cusr 0.00 csys = 8.79 CPU)
- Time for book-keeping (1): 2 wallclock secs ( 0.01 usr 0.00 sys + 0.00 cusr 0.00 csys = 0.01 CPU)
- Estimated total time: 12852 wallclock secs (74.09 usr 9.62 sys + 0.00 cusr 0.00 csys = 83.71 CPU)