select-mysql-Linux_2.2.16_SMP_alpha
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:2k
源码类别:
MySQL数据库
开发平台:
Visual C++
- Testing server 'MySQL 3.23.39' at 2002-09-08 11:16:28
- 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): 4 wallclock secs ( 0.71 usr 0.65 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Test if the database has a query cache
- Time for select_query_cache (10000): 82 wallclock secs ( 3.53 usr 0.98 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Time for select_query_cache2 (10000): 84 wallclock secs ( 3.50 usr 1.01 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Testing big selects on the table
- Time for select_big (70:17207): 0 wallclock secs ( 0.12 usr 0.08 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Time for select_range (410:1057904): 230 wallclock secs ( 7.50 usr 5.11 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Time for min_max_on_key (70000): 155 wallclock secs (22.55 usr 6.20 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Time for count_on_key (50000): 349 wallclock secs (17.12 usr 4.59 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Time for count_group_on_key_parts (1000:100000): 38 wallclock secs ( 0.89 usr 0.59 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Testing count(distinct) on the table
- Time for count_distinct_key_prefix (1000:1000): 41 wallclock secs ( 0.42 usr 0.13 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Time for count_distinct (1000:1000): 51 wallclock secs ( 0.44 usr 0.11 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Time for count_distinct_2 (1000:1000): 49 wallclock secs ( 0.41 usr 0.14 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Time for count_distinct_group_on_key (1000:6000): 47 wallclock secs ( 0.45 usr 0.14 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Time for count_distinct_group_on_key_parts (1000:100000): 75 wallclock secs ( 0.98 usr 0.61 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Time for count_distinct_group (1000:100000): 75 wallclock secs ( 0.97 usr 0.60 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Time for count_distinct_big (100:1000000): 80 wallclock secs ( 6.08 usr 6.96 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
- Total time: 1360 wallclock secs (65.68 usr 27.91 sys + 0.00 cusr 0.00 csys = 0.00 CPU)