Database performance improvement, a six sigma project (control) by nirav shah

Aug 17, 2013Download as PPT, PDF1 like1,239 views

This document summarizes work done to improve the performance of the UATIMNG database. Data was collected before and after implementation to measure performance. The mean query execution time was reduced from 192.7 seconds to 15 seconds, and standard deviation was reduced from 5.47 seconds to 1.50 seconds. Control charts and statpack reports were used to monitor performance. The client approved the work and benefits included more effective resource utilization, better response times, and estimated annual savings of 9735 GBP. Monitoring of database objects and performance metrics will continue.

1.
TCS GE Confidential
Nirav Shah (GB)
Improve UATIMNG
database performance
Dushyant Mohanty (TCS - sponsor)
V, Ms. Vijayalakshmi (MBB)
Nilesh Talele (BB)
Pierre Banroques (GB - sponsor)

2.
TCS GE Confidential
Data Collection & MSAControl
Step 10
Data Collection
Data Collection after Implementation

3.
TCS GE Confidential
Data Collection & MSAControl
Step 10
MSA Findings
2.47% Gage R & R for the query execution found. That is acceptable.
Guage R & R
MSA Worksheet

4.
TCS GE Confidential
New Process CapabilityControl
Step 11
Sigma Calculator
New Process Capability Calculations

5.
TCS GE Confidential
Control
Step 11
Process Monitoring
Before Implementation
After Implementation
After ImplementationBefore Implementation

6.
TCS GE Confidential
Process MonitoringControl
Step 12
Control Chart for Avg Query Execution time

7.
TCS GE Confidential
Process Monitoring
Control
Step 12
Stat pack Report (After Implementation)
Stat pack Report (Before Implementation)
Statpack Report
(Before Implementation
Row Chaining:
File sequential read :
Row Chaining
Statpack Report
(After Implementation

8.
TCS GE Confidential
Process Control Plan
Control
Documentation Monitoring Resource Plan
Plan for doing the work Checking the work The response to special causes
database is checked for storage
parameters ,chaining and fragments.
Deployment Flow Chart Key Process &
Output Measure
Monitoring
Standards
Response
time for
reporting
Queries
Query
should
execute
within 70
secs.
Check
row
chaining
daily
through
automate
d scripts
Create a
automated
scripts
provides
alerts on
regular basis
Containment
Procedure for
Process
Adjustment
Procedure for
System
Improvement
Method for
Recording
Data
Use the
data
collection
template
Observe
statspack
report and
adjust
database
storage
parameters
Database objects defragmented and Row
chaining removed. SQL is checked and
fired on the database.
Users get results for a faster response
time
Application team gives request for
slowness of queries .
Users execute Reporting queries on the
database
BUSINESS USER
DEVELOPEMENT TEAM
BUSINESS USER
DBA

9.
TCS GE Confidential
• Monitor database object fragmentation every
weekly/biweekly.
• Monitor statspack report.
• Monitor Query response time and report to
DBA in case query consumes longer time.
Benefits from the project
• Effective utilization of resource
• Better response time
• Low Wait time
Savings from the project
• Indirect Annual Gross Benefit 9735 GBP
• The approach will be replicated on the
production database of iManage & other
databases.
• Nirav has conducted a Quality project on
performance on iManage UAT database.
Thanks to continue monitoring and
implement the same in Production.
Control/Response Plan HighlightsControl/Response Plan Highlights Benefits of Project & Customer SpeakBenefits of Project & Customer Speak
Sigma Levels/ImprovementSigma Levels/Improvement Communication & TranslationCommunication & Translation
Statistic Before After
Mean 192.7
Sec
15 Sec
Std. Dev 5.47
Sec
1.50
Sec
Summary
Control
Step 12
Client Approval mail

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This document discusses improving the performance of the UATIMNG database. Three solutions are chosen: 1) follow Oracle's Flexible Architecture, 2) defragment database objects, and 3) set storage parameters for objects. A detailed process map is proposed for implementing the chosen solutions. The document also includes a risk analysis template and a cost-benefit analysis calculating estimated annual savings of £9735 from increased productivity due to time savings in running queries.

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Database performance improvement, a six sigma project (control) by nirav shah

1. 1. TCS GE Confidential Nirav Shah (GB) Improve UATIMNG database performance Dushyant Mohanty (TCS - sponsor) V, Ms. Vijayalakshmi (MBB) Nilesh Talele (BB) Pierre Banroques (GB - sponsor)

2. 2. TCS GE Confidential Data Collection & MSAControl Step 10 Data Collection Data Collection after Implementation

3. 3. TCS GE Confidential Data Collection & MSAControl Step 10 MSA Findings 2.47% Gage R & R for the query execution found. That is acceptable. Guage R & R MSA Worksheet

4. 4. TCS GE Confidential New Process CapabilityControl Step 11 Sigma Calculator New Process Capability Calculations

5. 5. TCS GE Confidential Control Step 11 Process Monitoring Before Implementation After Implementation After ImplementationBefore Implementation

6. 6. TCS GE Confidential Process MonitoringControl Step 12 Control Chart for Avg Query Execution time

7. 7. TCS GE Confidential Process Monitoring Control Step 12 Stat pack Report (After Implementation) Stat pack Report (Before Implementation) Statpack Report (Before Implementation Row Chaining: File sequential read : Row Chaining Statpack Report (After Implementation

8. 8. TCS GE Confidential Process Control Plan Control Documentation Monitoring Resource Plan Plan for doing the work Checking the work The response to special causes database is checked for storage parameters ,chaining and fragments. Deployment Flow Chart Key Process & Output Measure Monitoring Standards Response time for reporting Queries Query should execute within 70 secs. Check row chaining daily through automate d scripts Create a automated scripts provides alerts on regular basis Containment Procedure for Process Adjustment Procedure for System Improvement Method for Recording Data Use the data collection template Observe statspack report and adjust database storage parameters Database objects defragmented and Row chaining removed. SQL is checked and fired on the database. Users get results for a faster response time Application team gives request for slowness of queries . Users execute Reporting queries on the database BUSINESS USER DEVELOPEMENT TEAM BUSINESS USER DBA

9. 9. TCS GE Confidential • Monitor database object fragmentation every weekly/biweekly. • Monitor statspack report. • Monitor Query response time and report to DBA in case query consumes longer time. Benefits from the project • Effective utilization of resource • Better response time • Low Wait time Savings from the project • Indirect Annual Gross Benefit 9735 GBP • The approach will be replicated on the production database of iManage & other databases. • Nirav has conducted a Quality project on performance on iManage UAT database. Thanks to continue monitoring and implement the same in Production. Control/Response Plan HighlightsControl/Response Plan Highlights Benefits of Project & Customer SpeakBenefits of Project & Customer Speak Sigma Levels/ImprovementSigma Levels/Improvement Communication & TranslationCommunication & Translation Statistic Before After Mean 192.7 Sec 15 Sec Std. Dev 5.47 Sec 1.50 Sec Summary Control Step 12 Client Approval mail

10. 9. TCS GE Confidential • Monitor database object fragmentation every weekly/biweekly. • Monitor statspack report. • Monitor Query response time and report to DBA in case query consumes longer time. Benefits from the project • Effective utilization of resource • Better response time • Low Wait time Savings from the project • Indirect Annual Gross Benefit 9735 GBP • The approach will be replicated on the production database of iManage & other databases. • Nirav has conducted a Quality project on performance on iManage UAT database. Thanks to continue monitoring and implement the same in Production. Control/Response Plan HighlightsControl/Response Plan Highlights Benefits of Project & Customer SpeakBenefits of Project & Customer Speak Sigma Levels/ImprovementSigma Levels/Improvement Communication & TranslationCommunication & Translation Statistic Before After Mean 192.7 Sec 15 Sec Std. Dev 5.47 Sec 1.50 Sec Summary Control Step 12 Client Approval mail