April 17, 2021

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Database Performance Tuning

What Are The Key Basics Of Database Performance Tuning? 

Your database’s poor performance is detrimental to your business and can bog down daily operations to a large extent. Data is your company’s lifeline, and as a business owner, you cannot afford any barriers to data access at all. Ensure that you maintain the data properly and use it accurately. 

One of the best methods for you to navigate previous database performance issues is to get a regular audit of your database performance done. Just like a vehicle that needs standard maintenance and tuning, your database and its environments also need to be evaluated and serviced correctly to ensure tasks perform well in precisely the same way as they should. Experienced DBAs that are familiar with effective database management know the ins and outs of performance tuning. However, the following should create a foundation for the fundamentals of database tuning for those professionals that are new to such procedures.

What do you mean by database performance tuning?

When you use the term “database performance tuning” to boost the performance of any database system, you will find multiple processes and procedures wrapped up intricately in this statement. Database tuning depends upon specific situations. These situations can involve optimizing performance by boosting its query response, indexing, and database configuration, whether it is of the CPU or the operating system, or more. 

When all of the above are aligned with the best standard practices, your company is ideally suited for the requisition of data, the utilization of system resources, and the benefits of enjoying optimal database performance. 

When it comes to performance tuning tasks, they do seem straightforward to many professionals. However, this post will give you an insight into some of the more business-critical aspects of database performance tuning keeping in consideration that all database systems are unique when it comes to planning in syncing them to the organizational goals.

Queries tuning 

Professionals from credible companies in database management and administration, RemoteDBA.com, state that when it comes to query tuning, it refers to the enhancement of the database structure leading to the improvement of the execution time of database queries. During any performance tuning session of the database, the DBA needs to check the selection criteria users deploy to assess the effectiveness of the database query return. 

In the absence of structured well and the correct selection criteria, the access of data will be inhibited, which will result in the database getting slow returns. Therefore, it is here that by improving the query structure, users can access data correctly and faster.

There is another point to note in the above context, and this is the queries that are being discussed generally originate from the business applications. They can come from your vendor, whether in-house or part of your business intelligence, or the systems you use for reporting. When it comes to writing and performance tuning queries for maximum performance, people with skills and experience are not the same professionals who write the application.

Enhancing indexing

You cannot talk about the improvement of the data structure without mentioning the significance of precise indexing. At its root, you will find indexing is not difficult, and it is quite simple. You need to search the key that has copies of the primary key or the key of tables and the data reference that holds together indicators for locating key value. It is simple to do. However, if the structure has not been optimized, the processing of queries is inefficient and slow. 

You need to assess and revitalize indexing so that you can mitigate the risks of accessing data and get the information you need fast. The perfect way for you to think about the above is to imagine there is no index. The next step is to carefully step through carefully and examine every data row to check what the query has requested.

Tuning of Input/output 

The input/output tuning encompasses the whole assessment and optimization of the configuration for database hardware. Imagine you are currently experiencing bottlenecks in input and output (here, the wait percentage for I/O is very high, causing a lag between the subsystem of the disk and the CPU. In such a case, you need to consider many things like-

  • The solid-state drives 
  • Size of the block/stripe
  • Controller cards
  • Complete disk configuration 
  • Levels of Redundant Array Of Independent Disk or RAID 
  • Storage systems and more 

Regularly, the transaction logs’ insufficient placement like the frequent and big-time consumers of your I/O tend to affect your performance. During the tuning of I/O, the DBA will generally troubleshoot the specific cause for slow database performance and later configure the hardware as required so that your database users can get back to the system fast.

Configuration of the DBMS or the database management system

This is the last step when it comes to the complete performance tuning of your database is concerned. This step involves the configuration of the DBMS. Here memory, as well as processing resources of the database, play a key role in helping the database to run smoothly. In the absence of the correct protocols in position, complete functionality gets exhausted on small tasks.

It is here that the database management system needs to be reinvigorated with multiple processes that include the management of the memory cache as well as buffers, management of the recovery intervals, assigning the parallelism with the system processors, and finally tuning the protocols for networks for interaction between multiple data consumers. In short, when the DBMS is tuned well, you will always have efficient access to data. 

When it comes to complete performance tuning of your database, you should never side-track the details. You must ensure you have the right database management professionals and skilled DBAs by your side. Even if you do not have an expert team of in-house IT professionals for your database performance tuning, ensure you rely on good remote DBA companies with a skilled team of experts to do the job for you!

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