Lexmark X925 Lexmark Document Distributor - Page 65

Determining the single

‑

server throughput for a solution

When building or upgrading an LDD system around a particular solution, the single

‑

server throughput of the solution

should be determined to help in sizing the system. You can determine this value by testing the solution with the

performance simulator.

For more information about system sizing using the value determined by this process, see the

Lexmark Document

Distributor Administrator's Guide

.

Note:

This test should be performed either on a separate test LDD system with at least one server matching the

performance of your production system, or during a time that your production system is not processing any other

jobs.

1

On the LDD system where the solution is being tested, set all but one server offline.

Note:

If unequal servers are in the system, then you may need to test the solution on each server for the most

accuracy.

2

In Eclipse, click

LDD SDK

>

MFP

>

Performance Simulator

.

If you have not installed the MFP emulator and performance simulator, then follow the instructions on the computer

screen.

3

From the MFP Simulator configuration window, click

File

>

New Configuration

.

4

Configure the simulator and LDD system for the test. Make sure you have discovered the simulator in the LDD

system and have deployed the solution to the simulator.

After the MFP simulator has been discovered, use the following settings in the MFP Simulator configuration window:

•

Configuration tab:

–

Number of MFPs to simulate

—

1

–

Repetitions

—A number high enough to run at least an hour. The following typical throughputs on a server

with the recommended hardware may help determine a rough estimate:

Solution processing load

Functions used

Average single

‑

server throughput

Typical

•

Some image processing

•

Printing

6000–8000 jobs per hour

Heavy

•

Extensive image processing

•

Bar codes

•

External processes

•

Small to medium Document

Producer (e-forms) jobs


Very heavy (OCR)

•

OCR

•

Large Document Producer (e-

forms) jobs


Note:

Using less than the recommended RAM significantly reduces throughput. For example, a

dual

‑

processor server with only 2GB of RAM can process only 600–800 jobs per hour when using a

“heavy” solution.

Testing and deploying workflow solutions

65

Section	Page
Contents	2
Getting started	5
Prerequisite skills for developing workflow solutions	5
Prerequisite skills for developing LDD system components	5
Understanding workflow solutions	6
Understanding solution types	7
Version compatibility of workflow solutions	8
Understanding components	8
What is the LDD SDK?	8
Minimum system requirements	8
Supported printers	9
Supported ECM platforms	12
Getting support	12
Preparing for development	13
Installing the development environment	13
Manually associating JavaScript files with Eclipse	14
Accessing the Lexmark Document Distributor Script Reference Guide	14
Developing workflow solutions	15
Best practices for solution design	15
Creating a new workflow solution project	16
Understanding the contents of a workflow solution project	16
Managing solution projects	17
Editing the properties of an existing workflow solution project	18
Referencing a workflow solution project	18
Evaluating code quality with JSLint	19
Understanding types of scripts	19
Using profile scripts	19
Using library scripts	19
Adding a library script to a solution	20
Accessing the functions of a library script	20
Using auto-configure scripts	20
Using auto-configure methods	21
Configuring the home screen with auto-configure	21
Using forms merge scripts	29
Scripting for different stages of a forms merge	29
Using the PrintClass service with forms merge scripts	32
Printing forms on printers with forms cards	32
Using scheduled scripts	32
Understanding the objects used in solution development	33
Top-level objects	33
Prompts	33
Services	34
Configuring solutions	35
Managing solution settings	35
Managing device policies	37
Managing the Solution Status Page	41
Managing formsets	42
Managing custom reports	42
Using the included document processing components	43
Bar code read support	43
Bar code write support	45
OCR support	46
Using the included solution database	48
Services	49
Understanding the Job Submission Web Service	49
Understanding dynamic prompting support	50
Using Kerberos authentication	51
Developing workflow solutions for previous versions of LDD	51
Testing and deploying workflow solutions	52
Testing with the MFP emulator and performance simulator	52
Accessing the MFP emulator or performance simulator	52
Using the interactive MFP emulator	52
Using the interactive MFP emulator with an LDD system	52
Simulating a scan task	53
Saving print jobs	53
Using the performance simulator	53
Preparing and running tests in the performance simulator	53
Configuring advanced properties	54
Supplying answers to prompts	61
Using JConsole to monitor and modify a running test	63
Determining the single-server throughput for a solution	65
Deploying a solution directly to an LDD server system	66
Restarting the Lexmark Solutions Application Server	67
Distributing a solution file and installing the solution using LMC	67
Managing the LDD 4.x System List	67
Building a workflow solution from the command line	68
Developing components	70
Understanding component design	70
Best practices for component design	70
Creating a new component project	71
Understanding the contents of a component project	71
Including a component in a workflow solution project	72
Troubleshooting	73
Network connection problems occur when installing or updating plug-ins in Eclipse	73
The Lexmark Solution Development perspective or other features are missing	73
Auto-complete does not work or items are missing in auto-complete lists for LDD objects	73
A properties file updated using revision control does not update	74
LDD system times out when directly exporting a solution	74
The MFP emulator does not run	74
The MFP emulator runs but cannot be discovered in LMC	75
The Backspace and left arrow keys do not work when viewing LMC in Eclipse	75
Notices	76
Edition notice	76
Trademarks	76
UNITED STATES GOVERNMENT RIGHTS	76
The Apache Software License, Version 1.1	77
Apache License Version 2.0, January 2004	77

Lexmark X925 Lexmark Document Distributor - Page 65

Determining the single-server throughput for a solution

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