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How do you improve the performance of a server?

Posted By :nishithraj     Posted Date :March 31, 2010    Points :10   Category :Sql Server 
First check the processor and memory usage to see that processor is not above 80% utilization and memory not above 40-45% utilization then check the disk utilization using Performance Monitor, Secondly, use SQL Profiler to check for the users and current SQL activities and jobs running which might be a problem. Third would be to run UPDATE_STATISTICS command to update the indexes

You can also find related Interview Question to How do you improve the performance of a server?  below: 

You are creating a database on multiple disks that will be queried intensively by users. What are some steps that you can take to improve performance and avoid disk contention?

You could use disk striping (RAID) to increase performance.

A secondary strategy would be to use filegroups to improve performance, especially placing the transaction log file(s) on a separate disk from the data file(s) to avoid disk contention as SQL Server queries the database and records actions in the log. Also, filegroups could be used to separate a portion of the data files requiring frequent backups because they are actively modified.

How does SharePoint 2013 Improve Performance?

SharePoint 2013 has Improved Performance bt Introducing Minimal Download Strategy and Distributed Cache Service to Improve Page Load and Shredded Storage to Improve Storage required for saving files.


Database Concurrency in Sql Server.

When two or more user try to update same type of data in a table then Database Concurrency helps in this situation.

There are 2 types of Database Concurrency

Pessimistic: When one user try to change the data with pessimistic concurrency then a lock is placed on the data in a table so that another user cannot change data. when one user finishes then other user can able to change.

Optimistic: When two user works on the same data in a table and one change that data first then second user cannot change that same data becasue the which he have using is allready changed so he cannot do the change becasue change apply to another data that is changed by first user. (More...)

Is it true that COM objects no longer need to be registered on the server?

Yes and No. Legacy COM objects still need to be registered on the server before they can be used. COM developed using the new .NET Framework will not need to be registered. Developers will be able to auto-register these objects just by placing them in the 'bin' folder of the application. (More...)

What are server controls?

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Which authentication mode lets you use both SQL Server logins and Windows logins?

Mixed Mode authentication mode lets you use both SQL Server logins and Windows logins? (More...)

What are the types of indexes available with SQL Server?

There are basically two types of indexes that we use with the SQL Server. Clustered and the Non-Clustered. (More...)

What is the difference between Server. Transfer and Response. Redirect?

The Transfer method allows you to transfer from inside one ASP page to another ASP page. All of the state information that has been created for the first (calling) ASP page will be transferred to the second (called) ASP page. This transferred information includes all objects and variables that have been given a value in an Application or Session scope, and all items in the Request collections. For example, the second ASP page will have the same SessionID as the first ASP page.

When the second (called) ASP page completes its tasks, you do not return to the first (calling) ASP page. All these happen on the server side browser is not aware of this.
The redirect message issue HTTP 304 to the browser and causes browser to got the specified page. Hence there is round trip between client and server. Unlike transfer, redirect doesn't pass context information to the called page.

Shashi Ray (More...)

How many types of tables are present in SQL SERVER?

There are 2 types of temporary tables, local and global in sql server.

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Difference between Server.Transfer & Response.Redierect ?


1)Server.Transfer transfers page processing from one page directly to the next page without making a round-trip back to the client's browser. This provides a faster response with a little less overhead on the server.

2) Server.Transfer does not update the clients url history list or current url.


1)Response.Redirect is used to redirect the user's browser to another page or site. This performas a trip back to the client where the client's browser is redirected to the new page.

2) The user's browser history list is updated to reflect the new address. (More...)

What is SQL Server Service broker?

Service Broker is a unique feature in Microsoft SQL Server 2005 which is used to by internal or external processes to send and receive guaranteed, asynchronous messages by using extensions to Transact-SQL Data Manipulation Language (DML).

It's a platform for building a new class of loosely coupled services for database applications. Service Broker not only brings asynchronous, queued messaging to database applications but significantly expands the state of the art for reliable messaging.

The key components of SQL Server Service broker are
.Queue stores the messages for a particular service.
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