Performance Tuning Guide - EMC Community Network

More documents

Recommendations

Info

Measuring Performance Figure 30. Histogram for many small queries Measuring adaptor performance There are two ways to understand the performance impact of your adaptors. • Create a baseline (use DFC tracing, firebug, or a reverse proxy) and take away the adaptors 1 by 1. Measure the improvement on form initialization after taking away all adaptors. This approach provides you with the incremental cost of adding adaptors to the form. • To isolate adaptor query performance from performance issues related to the containing form, copy the query for each adaptor and run the query in IDQL or DA. Observe the response time. Poor query performance can result from network latency or poorly written queries. The same rules that apply to poorly written SQL or DQL apply to JDBC adaptors that query external sources. Adaptors perform poorly if the adaptor queries contain leading wildcard filters or return large amounts of data. — Make the DQL query in your adaptor more selective. [[i.e]&linkCreation=true&fromPageID=21234961" class="createlink"linktype="raw"linktext="[[i.e]|[[i.e]"> [[i.e]&linkCreation=true&fromPageID=21234961" class="createlink"linktype="raw" linktext="[i.e]|[i.e]"> 78 EMC Documentum xCP 1.0 Performance Tuning Guide
Measuring Performance [i.e]|[i.e]] it should return as few rows as possible. Current Query select distinct sender from [[dbo.vw_sender]&linkCreation=true&fromPageID=21234961" class="createlink"linktype="raw" linktext="[[dbo.vw_sender]|[[dbo.vw_sender]"> [[dbo.vw_sender]&linkCreation=true&fromPageID=21234961" class="createlink"linktype="raw" linktext="[dbo.vw_sender]|[dbo.vw_sender]"> [dbo.vw_sender]|[dbo.vw_sender]] where country like '%$ Unknown macro: {country} ' order by 1 Change the query to select distinct sender from [[dbo.vw_sender]|[dbo.vw_sender]] where country = '$ ' order by 1 Or the other option is to select a country by default — Design adaptor queries to take advantage of available indexes or create indexes to accommodate the DQL query. Checking ACS operation Check ACS operation as follows: • Verify the ACS URL. • Verify the ACS port. • Observe the amount of data sent. • Observe the time it takes to view a document. Use a reverse proxy to ensure the ACS URL comes from the Java Method Server and includes ’ACS’ in the URL (Figure 31, page 79). Figure 31. Verifying the ACS URL and port View the image properties (Figure 32, page 80) and note the following: • File URL contains the ACS port and the word ’getpage’. • Page viewing time is reasonable. • File length is in kilobytes. • Network time and download rate rule out network issues. EMC Documentum xCP 1.0 Performance Tuning Guide 79
Page 1 and 2:
EMC ® Documentum ® xCelerated Com
Page 3 and 4:
Table of Contents Preface .........
Page 5 and 6:
Table of Contents Configuring the B
Page 7 and 8:
Table of Contents List of Tables Ta
Page 9 and 10:
Preface This document addresses are
Page 11 and 12:
Overview Chapter 1 Creating the bes
Page 13 and 14:
Overview General guidelines Pay clo
Page 15 and 16:
Planning Capacity and Sizing Chapte
Page 17 and 18:
Planning Capacity and Sizing Planni
Page 19 and 20:
Planning Capacity and Sizing Load s
Page 21 and 22:
Planning Capacity and Sizing Load s
Page 23 and 24:
Planning Capacity and Sizing Begin
Page 25 and 26:
Maximizing Process Throughput Chapt
Page 27 and 28: Maximizing Process Throughput Minim
Page 29 and 30: Maximizing Process Throughput Figur
Page 31 and 32: Maximizing Process Throughput Incre
Page 33 and 34: Maximizing Process Throughput High
Page 35 and 36: Chapter 4 Designing the Application
Page 37 and 38: Designing the Application Figure 10
Page 39 and 40: Designing the Application Note: Com
Page 45 and 46: Designing the Application Using sea
Page 47 and 48: Designing the Application Note: Add
Page 49 and 50: Designing the Application Rendering
Page 51 and 52: Designing the Application Changing
Page 53 and 54: Designing the Application Managing
Page 55 and 56: Designing Reports Chapter 5 This ch
Page 57 and 58: Designing Reports Planning and test
Page 59 and 60: Designing Reports missed report dat
Page 61 and 62: Designing Reports • Use database
Page 63 and 64: Configuring System Components Chapt
Page 65 and 66: Configuring System Components Figur
Page 67 and 68: Configuring System Components Figur
Page 69 and 70: Measuring Performance Chapter 7 Thi
Page 71 and 72: Measuring Performance Figure 27. Si
Page 73 and 74: Measuring Performance Execute the b
Page 75 and 76: Measuring Performance Analyzing lar
Page 77: Measuring Performance Figure 29. Re
Page 81 and 82: Measuring Performance Figure 33. Sa
Page 83 and 84: Measuring Performance Analyzing mul
Page 85 and 86: Chapter 8 Maintaining the Repositor
Page 87 and 88: Maintaining the Repository and BAM
Page 89 and 90: Troubleshooting Chapter 9 This chap
Page 91 and 92: Troubleshooting Symptom BAM dashboa
Page 93 and 94: Index A activities consolidating, 2
Page 95 and 96: Index constraining, 49 latency and
Page 97: Index general guidelines, 49 get ne
show all

Performance Tuning Guide - EMC Community Network

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?