How is MSSQL using memory?
How is MSSQL using memory?
http://www.sqlhacks.com/Administration/Memory-Usage
Memory is one the most important factor affecting MSSQL performance.
As an administrator, you should be monitoring the memory
regularly. When Microsoft SQL Server runs out of memory, it will use
virtual memory: ie: disk paging, which will grind MSSQL to a halt.
You can keep track of the memory with dbcc memorystatus
.
Applies to:
Microsoft SQL Server 2005
Microsoft SQL Server 2008
Memorystatus
DBCC
MEMORYSTATUS
Memory Manager KB
------------------------------ --------------------
VM Reserved 538308
VM Committed 129888
AWE Allocated 0
Reserved Memory 1024
Reserved Memory In Use 0
(5 row(s) affected)
Memory node Id = 0 KB
------------------------------ --------------------
VM Reserved 534148
VM Committed 125880
AWE Allocated 0
MultiPage Allocator 7688
SinglePage Allocator 21808
(5 row(s) affected)
MEMORYCLERK_SQLGENERAL (Total) KB
---------------------------------------------------------------- --------------------
VM Reserved 0
VM Committed 0
AWE Allocated 0
SM Reserved 0
SM Commited 0
SinglePage Allocator 952
MultiPage Allocator 1544
(7 row(s) affected)
MEMORYCLERK_SQLBUFFERPOOL (Total) KB
---------------------------------------------------------------- --------------------
VM Reserved 523596
VM Co
Ïà¹ØÎĵµ£º
xtype ´ú±íÀàÐÍ
C = CHECK Ô¼Êø
D = ĬÈÏÖµ»ò DEFAULT Ô¼Êø
F = FOREIGN KEY Ô¼Êø
L = ÈÕÖ¾
FN = ±êÁ¿º¯Êý
IF = ÄÚǶ±íº¯Êý
P = ´æ´¢¹ý³Ì
PK = PRIMARY KEY Ô¼Êø£¨ÀàÐÍÊÇ K£©
RF = ¸´ÖÆɸѡ´æ´¢¹ý³Ì
S = ϵͳ±í
TF = ±íº¯Êý
TR = ´¥· ......
µ±Êý¾Ý·þÎñÆ÷ºÍWeb·þÎñÆ÷²¿ÊðÔÚ²»Í¬µÄ·þÎñÆ÷ÉÏʱ£¬»áÓõ½·Ö²¼Ê½ÊÂÎñ£¬ÐèÒª¶ÔÁ½¸ö·þÎñÆ÷µÄMSDTC½øÐÐÅäÖá£
´ò¿ª“¹ÜÀí¹¤¾ß¨D¨D×é¼þ·þÎñ”£¬ÒÔ´Ë´ò¿ª“×é¼þ·þÎñ¨D¨D¼ÆËã»ú”£¬ÔÚ“ÎҵĵçÄÔ”Éϵã»÷ÓÒ¼ü¡£ÔÚMSDTCÑ¡ÏÖУ¬µã»÷“°²È«ÅäÖÔ°´Å¥¡£ ......
Êý¾ÝÀàÐÍ
ÀàÐÍ
ÃèÊö
bit
ÕûÐÍ
bit Êý¾ÝÀàÐÍÊÇÕûÐÍ£¬ÆäÖµÖ»ÄÜÊÇ0¡¢1»ò¿ÕÖµ¡£ÕâÖÖÊý¾ÝÀàÐÍÓÃÓÚ´æ´¢Ö»ÓÐÁ½ÖÖ¿ÉÄÜÖµµÄÊý¾Ý £¬ÈçYes »òNo¡¢True »òFa lse ¡¢On »òOff
int
ÕûÐÍ
int Êý¾ÝÀàÐÍ¿ÉÒÔ´æ´¢´Ó- 231( ......
selectÓï¾äÇ°¼Ó£º
declare @d datetime
set @d=getdate()
²¢ÔÚselectÓï¾äºó¼Ó£º
select [Óï¾äÖ´Ðл¨·Ñʱ¼ä(ºÁÃë)]=datediff(ms,@d,getdate())
ת×Ô£º¶¯Ì¬ÍøÖÆ×÷Ö¸ÄÏ www.knowsky.com
ÕâÊǼòÒ׵IJ鿴ִÐÐʱ¼äµÄ·½·¨¡£
===========================================£¨Ò»ÏÂÄÚÈÝת×Ô£º£Ã£Ó£Ä£Î£©
MSSQL ServerÖÐͨ¹ý²é ......