From 499426dd665b746f5849072e72422470aa943ae0 Mon Sep 17 00:00:00 2001
From: Nikita Malyavin <nikitamalyavin@gmail.com>
Date: Wed, 25 Sep 2024 00:31:19 +0200
Subject: [PATCH] time measures
---
sql/sql_base.cc | 5 ++++-
sql/sys_vars.cc | 6 ++++++
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/sql/sql_base.cc b/sql/sql_base.cc
index 716c3450ba6..88ad8a75fa5 100644
--- a/sql/sql_base.cc
+++ b/sql/sql_base.cc
@@ -5009,7 +5009,7 @@ add_internal_tables(THD *thd, Query_tables_list *prelocking_ctx,
} while ((tables= tables->next_global));
DBUG_RETURN(FALSE);
}
-
+extern ulonglong global_time_spent;
/**
Extend the table_list to include foreign tables for prelocking.
@@ -5046,6 +5046,7 @@ prepare_fk_prelocking_list(THD *thd, Query_tables_list *prelocking_ctx,
}
*need_prelocking= TRUE;
+ clock_t start= clock();
while ((fk= fk_list_it++))
{
@@ -5072,6 +5073,8 @@ prepare_fk_prelocking_list(THD *thd, Query_tables_list *prelocking_ctx,
&prelocking_ctx->query_tables_last,
table_list->for_insert_data);
}
+ clock_t measured_time= clock() - start;
+ global_time_spent+= measured_time;
if (arena)
thd->restore_active_arena(arena, &backup);
DBUG_RETURN(FALSE);
diff --git a/sql/sys_vars.cc b/sql/sys_vars.cc
index 47e31291e6b..3e02f301e0c 100644
--- a/sql/sys_vars.cc
+++ b/sql/sys_vars.cc
@@ -7327,3 +7327,9 @@ static Sys_var_enum Sys_block_encryption_mode(
"AES_ENCRYPT() and AES_DECRYPT() functions",
SESSION_VAR(block_encryption_mode), CMD_LINE(REQUIRED_ARG),
block_encryption_mode_values, DEFAULT(0));
+
+ulonglong global_time_spent= 0;
+static Sys_var_ulonglong Sys_time_spent(
+ "time_spent", "",
+ GLOBAL_VAR(global_time_spent), CMD_LINE(NO_ARG),
+ VALID_RANGE(0, ULONGLONG_MAX), DEFAULT(0), BLOCK_SIZE(1));
--
2.30.9