Browse by Tags

SQL Server - Have you observed DBCC SHRINKFILE operation performance, on huge databases?

Published 25 April 8 3:30 AM | SSQA.net

In general it is not a best practice to perform SHRINK database operation on a production server, atleast regularly! Sometimes it may be compulsory to keep them sized in order to ensure the disk storage is not compromised for any sudden changes to databases...

Filed under: sql server, indexes, memory, databases, cache, cpu, monitoring, operating system, huge, dbcc shrinkfile

SQL Server 2008 Resource Governor FAQ

Published 25 February 8 1:36 AM | SSQA.net

Bottlenecks aka locking & blocking is a quite common scenario within a RDBMS platform, that too SQL Server is not an exception at all. With an access to shared resources causes bottlenecks and demands on shared resources cause poor response time and...

Filed under: sql server, performance, memory, dba, i/o, disk, 2008, development, cpu, best practice, capture, resource governor

SQL Server license with multi-core CPU technology, confusing concepts?

Published 20 February 8 2:47 AM | SSQA.net

How many SQL Server licenses you need to fix the number of CPUs on the server? The answer it depends on the number! Well having hyper-threading (i.e. multiple threads execute on a single physical CPU appearing as 2 logical CPUs) and dual-core technology...

Filed under: sql server, performance, microsoft, version, article, license, 2005, cpu, monitoring, administrator, value, costing

SQL Server licensing with having multi-core CPU technology, confusing concepts?

Published 19 February 8 2:47 AM | SSQA.net

How many SQL Server licenses you need to fix the number of CPUs on the server? The answer it depends on the number! Well having hyper-threading (i.e. multiple threads execute on a single physical CPU appearing as 2 logical CPUs) and dual-core technology...

Filed under: sql server, performance, microsoft, version, article, license, 2005, cpu, monitoring, administrator, value, costing

TSQL to get current executing statements - SQL Server 2005

Published 12 February 8 2:27 PM | SSQA.net

Using SP_WHO or SP_WHO2 is a common way to get list of executing processes currently on the server, within SQL Server 2005 you could take advantage of DMV that lists currently-executing statements. select r.session_id ,status ,substring(qt.text,r.statement_start_offset...

Filed under: sql server, dmv, cache, sp_who, cpu, tsql, queue, execution, runnable

Considering Parallel plans and forcing plans for better performance

Published 23 October 7 8:55 AM | SSQA.net

Parameterizing T-SQL queries are a well-known task such as database programming and best practice in some tasks. It allows query plan reuse and eliminates the need of recompilation for multiple invocations of the same query that simply has different parameter...

Filed under: sql server, performance, optimization, cache, index, cpu, partition, guide, parallel execution, force

High CPU issues that are specific to SQL Server 2000 installations and few with SQL 2005 too!

Published 20 September 7 10:40 AM | SSQA.net

Here comes another Frequently Asked Question (FAQ) on the forums and Frequently Posted Blog (FPB) here about high cpu issues on the SQL Server 2000 instances. Looking at high cpu spiks and performace issues is a common problem in all SQL Server installations...

Filed under: sql server, performance, databases, blogs, blocking, query, kba, cpu, execution plan, backups, resources, high cpu, FAQ

sys.dm_os_schedulers - useful to find on whether your SQL Server engine is weakening!

Published 17 August 7 8:4 AM | SSQA.net

The system DMV sys.dm_os_schedulers is an useful DMV to find such as running tasks & active workers threads etc. This is required to monitor the system state is heavily loaded or not, in particular this view will help you identify if there is any...

Filed under: sql server, performance, memory, analysis, ssms, dmv, cpu, disks

SQL Server timing values may be incorrect when you use utilities or technologies that change CPU frequencies

Published 17 August 7 3:45 AM | SSQA.net

Source: Knowledge Base Product: Microsoft SQL Server 2005 Enterprise Edition & SQL Server 2005 Standard Edition Notification Contents: New and All Modifications SQL Server timing values may be incorrect when you use utilities or technologies that...

Filed under: sql server, kba, cpu, timing

List of CPU based DMVs in SQL Server 2005 - best used for hardware analysis

Published 5 August 7 2:32 PM | SSQA.net

Dynamic Management Views (DMV) are very useful to get server state information to monitor the status, but not always you have to still continue in monitoring using SYSMON & PROFILER that are available by default with SQL installation. The engine within...

Filed under: sql server, performance, dmv, cache, i/o, cpu

Does DBCC SHRINKFILE consumes operating system resources such as memory, CPU usage etc.?

Published 25 July 7 4:30 AM | SSQA.net

Yes it does! Until yesterday even I was under impression that it will not use or cause any issues to the server. But think about performing the SHRINK operation of transaction log & database files on regular basis, say within a scheduled job or ongoing...

Filed under: sql server, memory, database, shrink, disk space, cpu

SQL Server has encountered % occurrence(s) of IO requests taking longer than 15 seconds to complete on file

Published 13 July 7 5:25 AM | SSQA.net

By now you should have applied the Service Pack 4 on your SQL Server 2000 instances and you might come across the message within the SQL error log " SQL Server has encountered 5877 occurrence(s) of IO requests taking longer than 15 seconds to complete...

Filed under: sql server, performance, memory, disk, IO, subsystem, request, cpu, taking longer