Hi all,
I've been noticing very slow response times. My CPU is throttling around 25 seconds within the last 24 hours (very very low use too). I checked the logs for slow mysql queries and these were what I found.
# Tue Dec 27 21:39:08 2011
# Query_time: 13.592177 Lock_time: 0.000073 Rows_sent: 0 Rows_examined: 1
use some_db;
DELETE FROM cache_bootstrap
WHERE (cid = 'system_list')
# Tue Dec 27 21:39:08 2011
# Query_time: 13.000759 Lock_time: 0.000151 Rows_sent: 0 Rows_examined: 0
DELETE FROM cache_bootstrap
WHERE (cid = 'system_list')
# Tue Dec 27 21:39:19 2011
# Query_time: 10.818829 Lock_time: 0.000100 Rows_sent: 1 Rows_examined: 1
use some_db;
SELECT 1 AS expression
FROM
cache cache
WHERE ( (cid = 'ctools_plugin_files:ctools:export_ui') ) FOR UPDATE
# Tue Dec 27 21:39:19 2011
# Query_time: 8.601975 Lock_time: 0.000104 Rows_sent: 0 Rows_examined: 1
DELETE FROM cache_bootstrap
WHERE (cid = 'system_list')
# Tue Dec 27 21:39:27 2011
# Query_time: 4.195347 Lock_time: 0.000059 Rows_sent: 0 Rows_examined: 0
INSERT INTO cache (cid, serialized, created, expire, data) VALUES ( //SOME DATA //
# Tue Dec 27 21:43:15 2011
# Query_time: 3.867647 Lock_time: 0.003150 Rows_sent: 0 Rows_examined: 0
use some_db;
INSERT INTO cache (cid, serialized, created, expire, data) VALUES ( // SOME DATA //