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Server optimization of performance tuning methodology
2022-07-05 21:58:00 【Short section senior】
memory management
X86 series CPU,32 Bit operating system
2GB<= Server physical memory <=4GB
Boot.ini add /3GB
4GB<= Server physical memory <=16GB
Boot.ini add /3GB /PAE
Server physical memory >=16GB
Boot.ini add /PAE
SQL Server Enable AWE(4GB Above memory )
Processors and threads
processor
Processor Association
I/O relation
Maximum number of worker threads
promote SQL Server The priority of the
The default priority is 7, After promotion, the priority is 13
Use only when multiple applications are installed on the server at the same time
Use Windows fibers ( Light pool )
There are many. CPU Large servers
be-all CPU All of them are running close to the maximum capacity
Content switching (context Switches) Too many times
Dynamic configuration
Add hardware resources when the database server is online
SQL Server How to read data from hard disk
Hard disk related settings
Hard disk
Recovery interval
Database checkpoints (Checkpoint) Frequency of events
The function of checkpoints is to mark the database cache as Dirty The data page and log page of are written to the hard disk
data compression
The main target
Reduce the actual target size of data warehouse
The second goal
Enhance query performance
Can be enabled on a single table or index
Support partition
Need in processor resources and storage and IO Choose between bandwidth
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