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MDEV-7943 - pthread_getspecific() takes 0.76% in OLTP RO

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Added THD argument to select_result and all derivative classes.
This reduces number of pthread_getspecific calls from 796 to 776 per OLTP RO
transaction.
This commit is contained in:
Sergey Vojtovich
2015-04-22 13:29:56 +04:00
parent 8345bc6921
commit b22959903b
18 changed files with 149 additions and 127 deletions
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2
sql/sql_explain.cc
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@ -156,7 +156,7 @@ int Explain_query::send_explain(THD *thd)
select_result *result;
LEX *lex= thd->lex;
if (!(result= new (thd->mem_root) select_send()) ||
if (!(result= new (thd->mem_root) select_send(thd)) ||
thd->send_explain_fields(result, lex->describe, lex->analyze_stmt))
return 1;