mirror of
https://github.com/MariaDB/server.git
synced 2025-01-22 14:54:20 +01:00
6dad23f04a
Merge https://github.com/kakao/mariadb-10.0 that contains Facebook's implementation for defragmentation facebook/mysql-5.6@a2d3a74 facebook/mysql-5.6@def96c8 facebook/mysql-5.6@9c67c5d facebook/mysql-5.6@921a81b facebook/mysql-5.6@aa519bd facebook/mysql-5.6@fea7d13 facebook/mysql-5.6@09b29d3 facebook/mysql-5.6@9284abb facebook/mysql-5.6@dbd623d facebook/mysql-5.6@aed55dc facebook/mysql-5.6@aad5c82 This version does not add new SQL-syntax and new handler API function. Instead optimize table is mapped to defragment table if innodb_defragment=ON, by default the feature is off. Contains changes authored by Sunguck Lee (Kakao).
113 lines
3.5 KiB
Text
113 lines
3.5 KiB
Text
/*****************************************************************************
|
|
|
|
Copyright (c) 2013, 2014, Facebook, Inc. All Rights Reserved.
|
|
Copyright (c) 2014, SkySQL Ab. All Rights Reserved.
|
|
|
|
This program is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU General Public License as published by the Free Software
|
|
Foundation; version 2 of the License.
|
|
|
|
This program is distributed in the hope that it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along with
|
|
this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
|
|
|
|
*****************************************************************************/
|
|
|
|
/********************************************************************//**
|
|
@file include/ut0timer.ic
|
|
Timer rountines
|
|
|
|
Created 30/07/2014 Jan Lindström jan.lindstrom@skysql.com
|
|
modified from https://github.com/facebook/mysql-5.6/commit/c75a413edeb96eb99bf11d7269bdfea06f96d6b6
|
|
*************************************************************************/
|
|
|
|
/**************************************************************//**
|
|
Return time passed since time then, automatically adjusted
|
|
for the estimated timer overhead.
|
|
@return time passed since "then" */
|
|
UNIV_INLINE
|
|
ulonglong
|
|
ut_timer_since(
|
|
/*===========*/
|
|
ulonglong then) /*!< in: time where to calculate */
|
|
{
|
|
return (ut_timer_now() - then) - ut_timer.overhead;
|
|
}
|
|
|
|
/**************************************************************//**
|
|
Get time passed since "then", and update then to now
|
|
@return time passed sinche "then" */
|
|
UNIV_INLINE
|
|
ulonglong
|
|
ut_timer_since_and_update(
|
|
/*======================*/
|
|
ulonglong *then) /*!< in: time where to calculate */
|
|
{
|
|
ulonglong now = ut_timer_now();
|
|
ulonglong ret = (now - (*then)) - ut_timer.overhead;
|
|
*then = now;
|
|
return ret;
|
|
}
|
|
|
|
/**************************************************************//**
|
|
Convert native timer units in a ulonglong into seconds in a double
|
|
@return time in a seconds */
|
|
UNIV_INLINE
|
|
double
|
|
ut_timer_to_seconds(
|
|
/*=================*/
|
|
ulonglong when) /*!< in: time where to calculate */
|
|
{
|
|
double ret = (double)(when);
|
|
ret /= (double)(ut_timer.frequency);
|
|
return ret;
|
|
}
|
|
|
|
/**************************************************************//**
|
|
Convert native timer units in a ulonglong into milliseconds in a double
|
|
@return time in milliseconds */
|
|
UNIV_INLINE
|
|
double
|
|
ut_timer_to_milliseconds(
|
|
/*=====================*/
|
|
ulonglong when) /*!< in: time where to calculate */
|
|
{
|
|
double ret = (double)(when);
|
|
ret *= 1000.0;
|
|
ret /= (double)(ut_timer.frequency);
|
|
return ret;
|
|
}
|
|
|
|
/**************************************************************//**
|
|
Convert native timer units in a ulonglong into microseconds in a double
|
|
@return time in microseconds */
|
|
UNIV_INLINE
|
|
double
|
|
ut_timer_to_microseconds(
|
|
/*=====================*/
|
|
ulonglong when) /*!< in: time where to calculate */
|
|
{
|
|
double ret = (double)(when);
|
|
ret *= 1000000.0;
|
|
ret /= (double)(ut_timer.frequency);
|
|
return ret;
|
|
}
|
|
|
|
/**************************************************************//**
|
|
Convert microseconds in a double to native timer units in a ulonglong
|
|
@return time in microseconds */
|
|
UNIV_INLINE
|
|
ulonglong
|
|
ut_microseconds_to_timer(
|
|
/*=====================*/
|
|
ulonglong when) /*!< in: time where to calculate */
|
|
{
|
|
double ret = when;
|
|
ret *= (double)(ut_timer.frequency);
|
|
ret /= 1000000.0;
|
|
return (ulonglong)ret;
|
|
}
|