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Praveen SrvatsaDirector | AsthraSoft ConsultingMicrosoft Regional Director, BangaloreMicrosoft MVP, ASP.NEThttp://blogs.asthrasoft.com/praveens | [email protected]

Performance Tuning Redefined with SQL 2008

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What We Will CoverPerformance Studio concepts (data collection, management data warehouse)How to monitor/troubleshoot performance issues using Performance StudioNew performance monitoring features in SQL Server® 2008Long-term investment: Foundations for performance monitoring in the future

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Level 200

Helpful ExperienceSQL Server Management StudioPerformance MonitoringTransact-SQL (T-SQL)

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AgendaOverviewArchitectureComponentsFuture Plans

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What Is Performance Studio?A framework that ties together collection, analysis, troubleshooting, and persistence of SQL Server diagnostics information. It consists of a suite of tools for:

Low overhead data collectionPerformance monitoring, troubleshooting, tuningPersistence of diagnostics dataReporting

Short term goals: Provide enhanced data collection and reports out of the box

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Performance Studio Overview

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Data Collection UI(Object Explorer)Data Collection UI(Object Explorer)

Data Collection Configuration

Data Collection Configuration

Collection Set Reports

Collection Set Reports Management Data

Warehouse

TargetTarget

Data CollectorData Collector


TargetTarget



Performance Studio Architecture

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Performance Studio Components

Server Side: Data CollectorExtensible data collection infrastructureIncludes out of the box data collections required to identify and troubleshoot the most common problems for the relational engineSupport for SQL Server relational engine only, but other SQL Server services can be added in the future

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Server Side: Management Data Warehouse

Data repository for baseline and historical comparisonsAggregated reporting for multiple SQL Server instances

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Client Side: Data collection configuration UI

Management data warehouse propertiesGeneral data collection propertiesCollection set configuration

SQL Server dashboard based on system collection sets reports

Performance monitoring and troubleshootingHistorical data analysis based on warehouse information


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Unified data collection infrastructurePerformance and general diagnostics data

Configurable and extensibleSupport for adding new data providers

Centralized storageAlways on, low overhead

Tools for monitoring provide optimal database environment performance

Data Collector

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Data Collector ConceptsData Provider

Source of information (for example, SQL Trace, Perform counters, DMVs, T-SQL queries, logs)

Collector TypeKnows how to read and expose data from specific data providers

Collection ItemInstance of a collector typeDetermines data inputs and frequency

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Data Collector Concepts• Collection Set

– Group of collection items– Logic unit of data collection

• Management Data Warehouse– Repository for data being collected (historical and

baseline analysis)

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select * from dm_os_performance_counters

select * from dm_os_performance_counters

T-SQL Collector

T-SQL Collector

T-SQL Queries

T-SQL Queries

Data Provider

Data Provider

Collector Type

Collector Type

Collection Item

Collection Item

Data Collector Concepts

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Data Collector Concepts

Collection SetCollection Set

Collection Item 1

Collection Item 1

Collection Item N

Collection Item N

…

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Data Collector Architecture

Data Data Collector Collector

(dcexec.ex(dcexec.exe)e)

SQL SQL ServerServer

Operating Operating SystemSystem

Data Data CollectCollect

or or CacheCache

MDWMDW

SQL AgentSQL Agent

SSMSSSMS

msdbmsdb

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Data Collector Architecture

Collection Collection JobJob(SSIS (SSIS runtime)runtime)

Data Data CollectCollect

or or CacheCache

Upload JobUpload Job(SSIS (SSIS runtime)runtime)

MDWMDW

CollectedCollectedDataData

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Data Collection ProvidersSQL Server 2008

T-SQL based queries (such as DMV data)SQL TracePerfmon Counters

Potential candidates for future releasesWMI eventsAdditional collector types that may have direct insight into SQL Server process

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Data Collector ExtensibilityCustom collector types

Provided by ISVs

Collections from known sources can be easily extended

Specify new SQL Trace events for collectionSpecify new performance counters for collection

Custom collection setsBased on existing Collector Types

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Adding ValueCollector types that can be developed:

SANs (Storage Area Network)HealthActivityPerformance impactCommunication channels

NAS (Network Attached Storage)Network MonitoringVMWare (Virtualization)

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Management Data WarehouseRelational database stores collect dataManagement Data Warehouse (MDW) objects are grouped in schemas, each schema serving a different purpose:

CoreSnapshotCustom_Snapshot

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Management Data WarehouseCore:

Defines tables and stored procedures used for organizing and identifying collected data

Snapshot:Objects (data tables, views) needed to store collected data from standard, out-of-the-box data collector types, and system collection sets

Custom_Snapshot:New data tables can be added for standard collector types or third-party collector types for user-defined collection sets

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MOM ServerMOM Server

MOM Data

Warehouse

MOM Data

Warehouse

MDWMDW

SQL ServerSQL Server

MOM AgentMOM Agent

Data Collect

or

Data Collect

or

Microsoft Operations

Manager (MOM) Server

Microsoft Operations

Manager (MOM) Server

MOM Data

Warehouse

MOM Data

Warehouse

MOM Integration

MOM AgentMOM Agent

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MOM Integration

MOM agent uses Data Collector to gather SQL Server diagnostics informationData Collector provides a coherent collection set definition for specific issuesData Collector cached data can either:

Be uploaded to the MOM data warehouse directly by the MOM agent (no MDW)Be uploaded to MDW first, and then to the MOM data warehouse when required

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Relational Engine Data Collection Sets

Based on top PSS reported issuesProblem characterization through out-of-the-box Data Collection SetsWorking closely with Product Support Services (PSS) and Engine teams

Address most important problems firstUse right metrics for performance issues

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Performance DashboardBased on System Data Collection Sets

Server ActivityHigh level SQL Server and system informationShould be turned on all the timeLow overhead (that is, <5 percent)

Query StatisticsDetailed SQL Server informationDrill down to performance issues root cause

Disk UsageGeneral disk activity information per database

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Future Plans• Advanced troubleshooting

• Automatic problem detection

• Enhanced monitoring and alerting

• Improved dynamic baselining

• Tools suite

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Session SummaryPerformance Studio conceptsNew performance monitoring features in SQL Server 2008Long-term investment

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