Let's Go Learn Knowledge Base
System Check (Flash Tester)
SYSTEM CHECK (FLASH TESTER)
There are two versions of this Flash tester: single and multiple lab Flash testers.


SYSTEM CHECKER FOR SINGLE COMPUTER
Click on the "Start Test Now" button to begin the Flash test. A window will appear with a Flash movie of a spinning banana. You should be able to Hear and See the graphic.
Start Test Now - This is used for testing a single computer for flash plug-in compatibility. It is the most common test for single users and is recommended for everyone.

Start Harder Test Now - This is the Phonemic Awareness Standalone Assessment Tester. Tests higher bandwidth needs.

If you do not SEE the graphic and HEAR the "Testing 1,2,3..." audio, go to the following link: Trouble Shooting for Flash Plug-in Page




SYSTEM CHECKER FOR COMPUTER LAB
This is used for testing multiple computers simultaneously for Flash plug-in compatibility & simulates a typical network load when using our system in a computer lab. Recommended for labs or networks with multiple computers accessing our system concurrently.

1. Flash Plug-in Tester
Here you can test to see if you have the correct Flash plug-in to use our system. Click on the "Start Test Now" button to begin the Flash test. A window will appear with a Flash movie of a spinning banana. You should be able to Hear and See the graphic.
Start Test Now
If you do not SEE the graphic and HEAR the "Testing 1,2,3..." audio, go to the following link: Trouble Shooting for Flash Plug-in Page

Attention Computer Labs! Run this test on all computers for 10 minutes, leaving all system check windows open. Preferably, you should run the test at the same time of day when you would normally be testing. This will simulate a full lab of students testing on Let's Go Learn. Be sure the "Attempted" and "Completed" numbers increment up and are the same. If "Completed" is less than "Attempted" on any computer, YOU ARE PROBABLY EXPERIENCING NETWORK CONGESTION! See Network/Bandwidth Load Test below.

2. Network/Bandwidth Load Test
The links below open to different Flash files that communicate with the Let's Go Learn server as would a real student if he or she were performing a live assessment.

Test Matrix - 1/2-second audio loaded
Audio File Size - 4k audio loading (easier)
2-second loop - Click Here- Almost no latency (Great)
5-second loop - Click Here - Medium to low latency
10-second loop - Click Here - Medium to high latency

Text Matrix - 4.5-second audio loaded
Audio File Size - 18k audio loading (harder)
2-second loop - N/A - Almost no latency (Great)
5-second loop - Click Here - Medium to low latency
10-second loop - Click Here - Medium to high latency

Completed is the number of callbacks successfully received by the computer being tested.
Attempts is the number of callbacks made by the Let's Go Learn Server.


Test Procedure: Single or multiple computer lab test

You can run this test on multiple computers at once to simulate the network load in a real lab situation or use with a single computer as well. On each computer, open up this page in its web browser. Then click on the "Test Now" link on the Test Matrix to begin the Flash test. A window will appear with a Flash movie of a spinning banana. At the top right of the Flash movie, you will see the number of attempts and number completed count up as it loops. The test is considered successful when the number completed equals the number of attempts. This means the callbacks were successful.
Success indicates:

➞ The Flash Plug-in is working on this particular computer with this paticular browser
➞ Your Internet speed is adequate to perform an assessment on this computer at this time

If the number of attempts is higher than the number completed, this means that some of the callbacks were not successful, which may indicate:

➞ Internet packets may be dropping off
➞ Your Internet latency may be greater than the loop length
➞ To students it may appear as if the assessment froze, since they clicked and either their call never reached Let's GoLearn, or it reached us but the response never made it back to the computer.

Repeat this test for each loop (2, 5, & 10 sec) in both 4k and 18k audio sizes. Be consistent and use the same test for each computer you are concurrently testing.

Troubleshooting and Tips Results:

➞ The "2-second loop" is the most strenuous test. Most labs will not succeed here, but if you do, your lab is in exceptional condition with regard to Internet access and network hardware.
➞ Success with the "5-second loop" and then only partial success with the "10-second loop" may result from network or Internet congestion. As more computers come on, your Internet bandwidth is getting choked or your network is choking. Hubs instead of switches are highly likely to cause problems with six or more computers. Also, check to make sure you have enough Internet bandwith with your current ISP. Refer to our System/Network Requirements page for details. Keep in mind that even though you have the recommended Internet speed, it is being shared among other aspects of your network.
Failure in the "10-second loop" on one computer or with many computers - Seems the same regardless of the number of computers: Internet access is slow. Network set-up is probably OK. It may be that many other people are accessing the Internet at the same time as you are doing your testing. Consider Internet access upgrade for lab.
Success in the "10-second loop" on one computer but "non-success" with multiple computers: Single computer in the "10-second loop" means you have high latency in your Internet access caused either by too many people using the Internet at the time of the test or by bandwidth being too low. Upgrading Internet bandwidth from your provider may help. Non-success with multiple computers means your packets are dropping off as more computers come online. This can be caused by further aggravation of your slow Internet access or by a slow network. Be sure you aren't using hubs, which suffer from network collisions, and replace with switches in the lab.
Non-success in the "10-second loop" with one computer: Internet access bandwidth is not adequate due to network traffic or not meeting system requirements. Try the same test after hours when other users are not accessing the Internet. If it speeds up and you get "5 second loop" or "10-second loop" success, then you know for sure that your daytime Internet bandwidth is too low for your site's needs.

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