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Increase value of thread_cache_size to 32

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Added 5 minute timeout before automaticlally removing threads from thread
cache.

This solves a problem with jemalloc, which is slow with a small
thread cache and also makes thread_cache big enough that most users
doesn't have to touch it
This commit is contained in:
Monty
2016-03-22 23:42:13 +02:00
parent 260dd476b0
commit fa3edbf40d
6 changed files with 30 additions and 12 deletions
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5
mysql-test/r/mysqld--help.result
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@@ -1068,7 +1068,8 @@ The following options may be given as the first argument:
Decision to use in heuristic recover process. One of:
COMMIT, ROLLBACK
--thread-cache-size=#
How many threads we should keep in a cache for reuse
How many threads we should keep in a cache for reuse.
These are freed after 5 minutes of idle time
--thread-pool-idle-timeout=#
Timeout in seconds for an idle thread in the thread
pool.Worker thread will be shut down after timeout
@@ -1426,7 +1427,7 @@ table-cache 431
table-definition-cache 400
table-open-cache 431
tc-heuristic-recover COMMIT
thread-cache-size 0
thread-cache-size 151
thread-pool-idle-timeout 60
thread-pool-max-threads 1000
thread-pool-oversubscribe 3