Here is some good tips found in KM862096/KM450424, hope this will help you...
Steps need to be taken to improve the slow performance of Quality Center:
1. Compression
The Client Server compression mechanism that was originally developed for QC10.0 and QC 9.2 is applied. If working in a LAN environment, these improvements will probably not have a major effect. That said, improved performance will still be observed.
2. Using QCExplorer and a desktop installation
If QCExplorer is installed, then it will skip the file download phase and will improve login times.
3. Avoiding the use of a blank filter upon login to the Defects module
When the user enters the defects module, the system runs the last filter to retrieve the list of defects. If there is an empty filter, the returned list of defects can be very large. That is, the users should not logout with an empty filter. In these cases, a simple filter of "assigned to = " may improve login times.
4. Using the same machines for subsequent logins
Since QC client uses a local cache for all kinds of settings, subsequent log-ins from the same machine should be a lot faster than the first login from that machine.
5. Leaving QC Open
If QC is left running, the slow login is possibly avoided.Login performance is slow with Quality Center client startup
Cause
Network latency in the system environment
QC files are being checked by anti-virus software during cold startup of Internet Explorer
Version and signature checks are being performed on all QC files
Fix
Tips to make Quality Center client load faster:
Reduce network latency to less than 200 ms
Do not close IE window after logging out from QC
Put QC files in the exception list of the antivirus software
For example: Put all the files in the following folder and sub folders in the exception list of the antivirus software: C:\Program Files\Common Files\Mercury Interactive\Quality Center.
NOTE: QC must be at patch 10 or above to see the loading progress.
The Import and Export module primarily works in the background any time you transfer components between the SAP TAO Client and HP Quality Server. The user interface is useful for manual maintenance activities. You may want to transfer components to:
- Back up components on the HP Quality Server or on a hard drive.
- Transport components from one HP Quality Server project to another, or from one server to another
- Download components from HP Quality Center.
There is no limit to the number of components you can import or export.
Exporting Test Components
When you export a component from SAP TAO to the HP Quality Center, the component gets stored in the file that you designated in Connections.
To export components from the SAP TAO Client
1. In the SAP TAO navigation bar, click Import/Export.
2. Navigate to the directory in the SAP TAO directory.
3. Select the checkbox next to the transactions that you want to export to HP Quality Center.
4. Click Export to QC. The status bar indicates the export’s progress.
5. Check the designated folder on the HP Quality Center to make sure the Export succeeded.
Importing Test Components
When you import a component from the HP Quality Center, you can store the component in any location for
which you have permission.
To import components from the HP Quality Center
1. In the SAP TAO navigation bar, click Import/Export.
2. Navigate to the directory you want to import from on the HP Quality Center.
3. Click the box next to each of the components you want to transfer.
4. Click Import From QC.
5. A Browse For Folder popup opens. Browse to the folder where you want to store the components.
6. If you need to make a new folder:
a. In the Browse Window, browse to the folder or directory where you want to make a new folder.
b. Click Make New Folder. A new unnamed folder appears in the directory.
c. Enter a name for the new folder
7. Click OK.
8. Make sure that the new folder exists and that it contains the exported components.
Consolidating creates one component from the elements in your test script. The new component contains all the code and screen elements from the test script.
Consolidating Test Plans
When you save a test script in the HP Quality Center, the components are saved in a designated folder in the SAP TAO system.
To consolidate in the SAP TAO Client
1. Make sure to save the test script in the HP Quality Center.
2. Open the SAP TAO Client and click Consolidate.
3. Choose the Select a Test Plan tab.
4. Navigate to the folder where you saved your test script.
5. Select the test script you want to consolidate and click Consolidate.
6. A message at the bottom of the screen details the Consolidation progress.
Consolidating Selected Components
Use this screen when you update a component and need to propagate the update to multiple business processes.
To consolidate selected components:
1. On the Consolidate page, click the Select by Component tab.
2. In the tree view, navigate to the test component you want to consolidate.
3. Click the test component. The Business Processes that use this component appear in a table below the test component.
4. Select the business processes you want to update with the new information. Deselect a business process if you do not want to reconsolidate it.
5. Click Consolidate.
