Hi,
I was running the test-select under the /usr/local/mysql/sql-bench dir and was
wondering if someone could help break it down for me ( Or at least the "Testing big
selects on the table" section ) Thanks :
[EMAIL PROTECTED] sql-bench]# perl test-select --password='ddddd'
Testing server 'MySQL 4.0.20 standard log' at 2004-05-27 8:29:45
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): 17 wallclock secs ( 0.28 usr 0.13 sys + 0.00 cusr 0.00 csys
= 0.41 CPU)
Test if the database has a query cache
Time for select_cache (10000): 3 wallclock secs ( 1.84 usr 0.20 sys + 0.00 cusr
0.00 csys = 2.04 CPU)
Time for select_cache2 (10000): 64 wallclock secs ( 2.29 usr 0.32 sys + 0.00 cusr
0.00 csys = 2.61 CPU)
Testing big selects on the table
Time for select_big (70:17207): 1 wallclock secs ( 0.22 usr 0.04 sys + 0.00 cusr
0.00 csys = 0.26 CPU)
Time for select_range (410:1057904): 19 wallclock secs (13.03 usr 1.86 sys + 0.00
cusr 0.00 csys = 14.89 CPU)
Time for min_max_on_key (70000): 17 wallclock secs (13.88 usr 1.18 sys + 0.00 cusr
0.00 csys = 15.06 CPU)
Time for count_on_key (50000): 12 wallclock secs ( 9.78 usr 0.94 sys + 0.00 cusr
0.00 csys = 10.72 CPU)
Time for count_group_on_key_parts (1000:100000): 2 wallclock secs ( 1.40 usr 0.12
sys + 0.00 cusr 0.00 csys = 1.52 CPU)
Testing count(distinct) on the table
Time for count_distinct_key_prefix (1000:1000): 0 wallclock secs ( 0.18 usr 0.03 sys
+ 0.00 cusr 0.00 csys = 0.21 CPU)
Time for count_distinct (1000:1000): 0 wallclock secs ( 0.23 usr 0.01 sys + 0.00
cusr 0.00 csys = 0.24 CPU)
Time for count_distinct_2 (1000:1000): 1 wallclock secs ( 0.24 usr 0.02 sys + 0.00
cusr 0.00 csys = 0.26 CPU)
Time for count_distinct_group_on_key (1000:6000): 0 wallclock secs ( 0.27 usr 0.02
sys + 0.00 cusr 0.00 csys = 0.29 CPU)
Time for count_distinct_group_on_key_parts (1000:100000): 3 wallclock secs ( 1.34 usr
0.22 sys + 0.00 cusr 0.00 csys = 1.56 CPU)
Time for count_distinct_group (1000:100000): 2 wallclock secs ( 1.44 usr 0.11 sys +
0.00 cusr 0.00 csys = 1.55 CPU)
Time for count_distinct_big (100:1000000): 15 wallclock secs (11.96 usr 1.52 sys +
0.00 cusr 0.00 csys = 13.48 CPU)
Total time: 156 wallclock secs (58.39 usr 6.73 sys + 0.00 cusr 0.00 csys = 65.12
CPU)
--
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
