Online conversion of the picture format

Public performance comparison of GIF picture

APE provides many built-in profile, synchronous and asynchronous remote execution of the test subjects, scheduling, and management. Use a preconfigured profile, APE you can easily run some basic tests to compare the performance of some typical architectural design.

Although there are many you can choose the test profile, but three examples listed below will allow you to familiarize yourself with some typical APE profile comparison. You should read through each example, to understand how option affects the performance of these profiles.

Note After you run the following example configuration file, you should increase their workload, such as the double the number or customer number will be called doubling, then test again. This experiment will show queueing and buffer pool design options to make your application scales as the workload increased steadily.

Configuration file name description
Typical performance, synchronization (DB, direct, visible) defines a performance test using a synchronous connection, synchronization connection will result in the customer waiting.
Typical performance, synchronization (DB, buffer pool, visible) define an object using a synchronous connection buffer pool performance testing.
Typical performance, asynchronous (DB, tasks, visible) defined for a scalable, robust applications using asynchronous connections, Queuing, and object buffer pool performance tests.

APE #1: typical properties, synchronization (DB, direct, visible)
Application performance profiler's implementation of the synchronous connection is from the client application is on a remote network as a direct request to convert picture object on the device. Because the connection is synchronous, the client application will wait for the task to complete, and blocked before converting the picture returns.

Direct synchronization is included in the cost of a limitation of the method is to start functioning and transformation of pictures objects overhead. When the customers use operation after completion of the task, operation and convert pictures are being destroyed.

 

In this configuration file, there are five customer processes, each 100 calls and calls to the delay is 0 milliseconds, by a convert picture machines by using ADO directly connected to the Microsoft Jet formats.

During the test run, all calls made per second was 27.4.

HVIF IGES PGML

 

CDF DjVu SWF XAML

Exchangeable image file format (Exif) Extensible Metadata Platform (XMP)

Define convert picture

Into the picture is a part of APE is very important. From which you will select the buffer pool and the queue, configure the Operations Manager, as well as defining conversion resource consumption characteristics of the picture.

Buffer pool is an important design strategy, because it can quickly reuse objects that have been created. Queuing is also an important design strategy, because using the queue, the application can balance resource consumption while dealing with increased workload. You can select only the buffer pool, you can also select the queues and pools (applies only to asynchronous model).

You can use the following four parameters to configure Operations Manager option.

"The number of operations" as pointed out earlier, the parameters associated with the asynchronous queuing models. It is determined by the queue "materialized in advance" in a number of objects.
EXR FITS FLIC FPX GIF HDRi HEVC

TIFF/IT WBMP WebP

"Prior binding convert picture" object controller bindings can interface with an object in two ways: use late-binding IDispatch mechanism or using vTable binding in advance. In General, declared as "As Object" object variable is late-bound: each method or property address is determined at run-time lookup. At compile time, you can use the type library object variable was declared as a special type of object (for example, the statement "As Worksheet") in an object variable is bound in advance. Prior binding has many advantages, the most important point is to get better performance.

"Keep converting picture reference" in many object models, objects are created each time it is invoked, use, and destruction. "Keep converting picture reference" option allows operation will convert the picture object remains in memory in case of repeated calls to the same object. This is most useful in the queue manager model. In the direct model, only when the number of calls is greater than the 1 o'clock (in the "customers" tab in the settings) the work parameters.
ICER ICNS ICO / CUR ICS ILBM JBIG JBIG2 JNG JPEG

 

Definition format

APE formatting options that you have the following two options:

Microsoft Jet engine

Microsoft(R) SQL Server(TM)
Choice test format depends on your application requirements for data conversion succeeds. Although Jet engine called a personal format, but it can deal with a moderate number of concurrent users. If your application is very small, and does not require the use of large format advantages, you may wish to use the Jet to test (and ultimately) your application.

If you want to simulate a need for robust, high performance online conversion of the format of the applications, you should use SQL Server for testing. Use SQL Server test options, you can actually modify the APETEST formatting tables and queries, to give your application the final data converted successfully.

Save the APE uses the default query statement in the ApeQuery table in the Apetest.mdb format. You can use Microsoft (r) Access to change the query, or add your own query. A useful idea is to add a simple query, such as exec MyProc, and then in SQL Server, create a stored procedure with the same name. In this way, you can perform a process is actually running your own custom storage APE test.

Tip If you have inserted your own query to the ApeQuery table, be sure to use the "application to convert picture options" dialog box, select the query.

For more information for more information about the APETEST format for a SQL Server installation, see Installing applications performance profiler.

"Preload convert picture" operation model prior to handling any customer request in the queue manager is created. That forces the operation when it is instantiated on the load corresponding to the converted images. Setting this option will eliminate this overhead to record in the log.
CPU tasks by specifying tasks and rest periods to simulate real work. Can convert picture adjustments on the machine to examine the availability of CPU CPU workload.

Regardless of what these settings determine work simulations, the built-in convert APE picture parts the only "real" job is to return the data requested by the customer. If you want to obtain more accurate measurements, you can convert your own objects as a picture. To do this, you can specify a "Library.Class.Method" format string Library is usually an object name for the picture, Class object that corresponds to an open sauce class, Method is implemented by the class of any method that does not require arguments.

 

 

"Back data" ("client options" dialog box)

Use the "back data" tab to specify how the data is returned from the service object.

Options
"Pass the result to the client (through a callback object)"
Specifies that each customer calls will return data to clients.

"Array"
Returns a Variant Array data types to the customer. Recommended to use an array instead of a collection.

"Set"
Variant Collection data type returned to the client. This is not a recommended option. It only demonstrates passing collections costs.

"Bytes/row"
Each row specifies the number of bytes returned to the customer object.

“+/-”
Specifies the size of the data returned to the client object data changes (in "bytes/row" for the base).

"Line"
Specifies the number of rows returned to the client object.

“+/-”
Specifies the number of rows returned to the client object data change (to "line" as the base).

 

CIN CPC CPT DDS DPX ECW

 

ANI ANIM APNG ART

 

 

 

 

PCX PGF PICtor PNG PSD / PSB PSP QTVR RAS RBE

 

XBM XCF XPM XWD

AI CDR CGM

Performance evaluation of an application error message

This section contains reference information for the application of performance evaluation error messages. These error messages include the following:

In the testing process to delete a customer

You must select a CPU or database tasks

<NAME> access is denied

In addition, there are <NUMBER> external customers to join the management of test

All requested clients were successfully created

All the requested operation has successfully created

Error occurred changing server connection settings

Error occurred while instantiating AEExpediter.Expediter

Error reading registry

Error occurred while writing to the registry

Because of a fatal error, application performance profilers will be shut down

Call retries exhausted

Use Remote Automation is unable to connect to server

SVG VML WMF Xar EPS PDF PICT PS

 

Unable to create account object

Unable to create the MTS service

Unable to create object

Cannot create or configure clients on the machine

Could not create or configure machine operation

Could not create or configure local client object

Could not create or configure the local operations manager object

Unable to create operation

The disk is full, logging is turned off

Allocates a handle error

Clear the error log file

Error closing cursors

Error while connecting to the drive

An error occurred when deleting a profile

An error occurred while disconnecting from the drive

Ends a transaction error

Error executing query

Get recording error

Release the handle error

In the Execute method of the error

Error opening service connection

Analysis of database query error

Error executing database query

Error notification account

Error setting property

On the remote machine failed to create AEServerMgr.ServerMgr

Invalid client machine name

The profile name is not valid

Invalid remote client machines PAM PBM/PGM/PPM/PNM

JPEG-HDR Logluv TIFF SGI TGA TIFF TIFF/EP

BMP BPG BSAVE CAL

 

JPEG 2000 JPEG-LS JPEG XR MNG MIFF NRRD

 

DXF EVA EMF Gerber

 

Invalid remote operation of machines

Invalid server name

Invalid operation: the machine name

Make sure you install and register the correct version of AESvrMgr.exe

Please ensure that the correct version of RacReg32.dll is installed and registered

Can not create customers

Does not specify a protocol

Server machine name not specified

Can not create Operations Manager

OLE conflict retries exhausted

Creates and configures only the <NUMBER> client

Create and configure the <NUMBER> Operations Manager

Please enter a valid log file

Please start with the APE Manager server control

First APE Manager process of waiting for the other to complete the test

PoolMgr reject retries exhausted

Testing has begun

The log file path specified is invalid

Unexpected error

Will attempt to connect to the local server

CIFF DNG