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BUG#15868 InnoDB thread thrashing

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Restoring default innodb_thread_concurrency to 8
This default now matches 5.0
This commit is contained in:
elliot@mysql.com 2006-05-26 17:11:21 -04:00
parent c6abfd2f7f
commit 9ab5929eba
2 changed files with 2 additions and 2 deletions
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2
mysql-test/r/innodb.result
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@ -1822,7 +1822,7 @@ Variable_name Value
innodb_sync_spin_loops 20 innodb_sync_spin_loops 20
show variables like "innodb_thread_concurrency"; show variables like "innodb_thread_concurrency";
Variable_name Value Variable_name Value
innodb_thread_concurrency 20 innodb_thread_concurrency 8
set global innodb_thread_concurrency=1001; set global innodb_thread_concurrency=1001;
show variables like "innodb_thread_concurrency"; show variables like "innodb_thread_concurrency";
Variable_name Value Variable_name Value

2
sql/mysqld.cc
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@ -5842,7 +5842,7 @@ log and this option does nothing anymore.",
{"innodb_thread_concurrency", OPT_INNODB_THREAD_CONCURRENCY, {"innodb_thread_concurrency", OPT_INNODB_THREAD_CONCURRENCY,
"Helps in performance tuning in heavily concurrent environments.", "Helps in performance tuning in heavily concurrent environments.",
(gptr*) &srv_thread_concurrency, (gptr*) &srv_thread_concurrency, (gptr*) &srv_thread_concurrency, (gptr*) &srv_thread_concurrency,
0, GET_LONG, REQUIRED_ARG, 20, 1, 1000, 0, 1, 0}, 0, GET_LONG, REQUIRED_ARG, 8, 1, 1000, 0, 1, 0},
{"innodb_thread_sleep_delay", OPT_INNODB_THREAD_SLEEP_DELAY, {"innodb_thread_sleep_delay", OPT_INNODB_THREAD_SLEEP_DELAY,
"Time of innodb thread sleeping before joining InnoDB queue (usec). Value 0" "Time of innodb thread sleeping before joining InnoDB queue (usec). Value 0"
" disable a sleep", " disable a sleep",