SQL ServerPerformance Data Collection & AnalysisUsingSQLDiag, SQL Nexus and PAL

Ramkumar GopalChennai SQL Server User Group Meet04-Aug-2012

4 years as a faculty with APTECH 8+ years as a Developer/DBA Blogging Internals on SQLServerCentral CTS Academy trainer on Internals/tuning topics MCTS, MCITP in SQL Server Working for HCL as Associate Consultant

Performance Data Collection Tools and Features SQLDiag SQL Nexus PAL

Perfmon Profiler DBCC Task Manager SSMS Activity Monitor SSMS Performance Reports DMVs (Glenn Berry) Management Data Warehouse Extended Events SQLDiag/PSSDiag SQL Nexus and PAL etc..

SQLDiag is a data collection utility SQLNexus and PAL tools can be used to analyze

data collected by the SQLDiag used by Microsoft Product Support Services team Both SQLDiag and PSSDiag tools are similar in all

aspects SQLDiag is available out of the box in SQL Server

2005 and all later versions Configuration XML

Windows Event Logs (Application, System, and Security) in .CSV files

PerfMon counters in .BLG file/s

SQL Server Profiler traces in .TRC file/s

SQL Server Blocking chains in a _BLK.TRC file

SQL Server error logs, configuration, point-in-time snapshots of several DMVs in a .OUT file

System information via the Msinfo32 utility in a .TXT file

Intermittent CPU spikes on the SQL Server box

Performance degradation during specific duration

Troubleshooting Blocking chains in SQL Server

Analyzing overall performance bottlenecks in SQL Server

using wait statistics

Identifying top queries by CPU, Duration, Reads and Writes

during a specific timeframe (say between 9:00 AM and 5:00

PM)

Top databases and logins consuming maximum CPU and IO

Troubleshooting performance issues with a batch job

http://msdn.microsoft.com/en-us/library/ms162833.aspx

SQLDiag

SQLDiag /B +01:00:00 /E +03:00:00

sqldiag /B +00:01:00 /E +00:02:00 /od:\PerfData

Data collected by SQLDiag

-> Errorlogs-> sp_configure-> sp_who-> sp_lock-> xp_msver-> sysprocesses-> sysdatabases-> sys.master_files-> Stats for currently running queries-> Head blockers-> SELECT @@version:-> SQL Server name (@@SERVERNAME):-> sys.dm_tran_database_transactions-> sys.dm_os_cluster_nodes-> sys.dm_db_session_space_usage

-> sys.dm_tran_active_transactions-> sys.dm_os_sys_info-> sys.dm_os_threads-> sys.dm_os_workers-> sys.dm_os_tasks-> sys.dm_io_pending_io_requests-> sys.dm_io_virtual_file_stats-> sys.dm_os_latch_stats-> sys.dm_os_latch_stats-> sys.dm_os_memory_clerks-> sys.dm_os_wait_stats-> sys.dm_os_waiting_tasks-> sysperfinfo snapshot #1

Prerequesties:

Report Viewer 2008 Redistributablehttp://www.microsoft.com/en-us/download/details.aspx?id=3841

RML Utilitieshttp://www.microsoft.com/downloads/en/details.aspx?FamilyId=7EDFA95A-

A32F-440F-A3A8-5160C8DBE926&displaylang=en

PerfStat Scriptshttp://sqlnexus.codeplex.com/wiki/PageInfo?title=Sql2005PerfStatsScriptRun StartSQLDiagTrace200[x].cmd in Command prompt (SQLDiag)

SQL Nexus Toolhttp://sqlnexus.codeplex.com/

Prerequesite:

Microsoft Chart Controlhttp://www.microsoft.com/en-us/download/details.aspx?id=14422

PAL Tool downloadhttp://pal.codeplex.com/