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MDEV-7956 - handler::rebind_psi() takes 0.07% in OLTP RO

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Do not call handler::rebind_psi() and handler::unbind_psi() when performance
schema is compiled out.

Overhead change:
handler::rebind_psi 0.04% -> out of radar
handler::unbind_psi 0.03% -> out of radar
open_table          0.21% -> 0.18%
close_thread_table  0.05% -> 0.05%
This commit is contained in:
Sergey Vojtovich
2015-06-17 13:09:22 +04:00
parent 8f603bcbca
commit 12d9fe14be
2 changed files with 10 additions and 4 deletions
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8
sql/sql_base.cc
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@ -1100,7 +1100,7 @@ void close_thread_table(THD *thd, TABLE **table_ptr)
critical section.
*/
if (table->file != NULL)
table->file->unbind_psi();
MYSQL_UNBIND_TABLE(table->file);
tc_release_table(table);
DBUG_VOID_RETURN;
@ -1635,8 +1635,8 @@ use_temporary_table(THD *thd, TABLE *table, TABLE **out_table)
thread to another, we need to let the performance schema know that,
for aggregates per thread to work properly.
*/
table->file->unbind_psi();
table->file->rebind_psi();
MYSQL_UNBIND_TABLE(table->file);
MYSQL_REBIND_TABLE(table->file);
}
#endif
}
@ -2530,7 +2530,7 @@ retry_share:
if (table)
{
DBUG_ASSERT(table->file != NULL);
table->file->rebind_psi();
MYSQL_REBIND_TABLE(table->file);
}
else
{