You can poll more frequently by using a value in seconds. For example, the following command polls every thirty seconds:

dbremote -c "DSN=SQL Anywhere 16 Demo" -rd 30s

In general, do not use a small polling interval unless you have a specific reason for requiring a very quick response time for messages. Setting a very small interval can have a detrimental effect on overall system throughput because:

You can poll less frequently, as in the following command, which polls every five minutes:

dbremote -c "DSN=SQL Anywhere 16 Demo" -rd 5

Setting larger polling intervals can provide a better overall throughput of messages in your system, it can increase the time it takes to apply an individual messages. For example, if your polling period for incoming messages is too long, compared to the frequency with which messages are arriving, you can end up with messages sitting in the queue, waiting to be processed.

• Performance when receiving messages
• Throughput adjustments by caching received messages
• Request adjustments to resend messages
• Database worker threads
• Performance when sending messages