Performance testing moodle.org

Moodle.org hardware

The new servers for moodle.org consist of two machines directly linked by a 1Gb VLAN:

Web server

• 2 x Quad Core Intel Xeon E5405 - 8 cores @ 2Ghz each
• 2 x 146GB 15k RPM SAS drives in RAID 1 via PERC 6/i controller
• 8Gb Registered ECC RAM

Database server

• 1 x Quad Core Intel Xeon E5405 - 4 cores @ 2Ghz each
• 3 x 146GB 15K RPM SAS drives in RAID 5 via PERC 6/i controller
• 8Gb Registered ECC RAM

Server tests

	Old Server	New Servers
Test	myisam	myisam	innodb	postgres
slowqueries 1
slowqueries 100
perspective (all caching off)	* 1402000 function calls * 11500 16KB files read from disk (cache) * 7900 regular expression replaces over 1KB of text * 6000 16KB files written to disk (cache) * 4880 get_record calls on the course table * 1030 insert_record calls on the course table * 240 update_record calls on the course table * 1293000 function calls * 11400 16KB files read from disk (cache) * 8200 regular expression replaces over 1KB of text * 6000 16KB files written to disk (cache) * 5530 get_record calls on the course table * 1590 insert_record calls on the course table * 250 update_record calls on the course table	* 2057000 function calls * 14800 16KB files read from disk (cache) * 16100 regular expression replaces over 1KB of text * 8500 16KB files written to disk (cache) * 2730 get_record calls on the course table * 2290 insert_record calls on the course table * 340 update_record calls on the course table * 2045000 function calls * 14800 16KB files read from disk (cache) * 16200 regular expression replaces over 1KB of text * 8700 16KB files written to disk (cache) * 2730 get_record calls on the course table * 1960 insert_record calls on the course table * 340 update_record calls on the course table
perspective (all caching on)	* 1403000 function calls * 10000 16KB files read from disk (cache) * 8300 regular expression replaces over 1KB of text * 5200 16KB files written to disk (cache) * 5270 get_record calls on the course table * 1390 insert_record calls on the course table * 220 update_record calls on the course table * 1382000 function calls * 11000 16KB files read from disk (cache) * 8200 regular expression replaces over 1KB of text * 5800 16KB files written to disk (cache) * 5640 get_record calls on the course table * 2140 insert_record calls on the course table * 250 update_record calls on the course table	* 1997000 function calls * 14700 16KB files read from disk (cache) * 16100 regular expression replaces over 1KB of text * 8800 16KB files written to disk (cache) * 19620 get_record calls on the course table * 2290 insert_record calls on the course table * 340 update_record calls on the course table * 2003000 function calls * 14700 16KB files read from disk (cache) * 16000 regular expression replaces over 1KB of text * 8800 16KB files written to disk (cache) * 19560 get_record calls on the course table * 1830 insert_record calls on the course table * 340 update_record calls on the course table
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