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Product Guide
Managing Network Traffic
Fine-tuning how database results are packaged and communicated between the server and client can enhance performance for DataServer applications. Two Progress parameters allow you to control the size of a network message and the contents of the message:
You can set the -Mm parameter to take full advantage of the DataServer’s default prefetch behavior, which packs as many records as possible in one message. For example, if you have 500 byte records, the DataServer packs two records into one message. (The default Progress message buffer size is 1 Kb.)
Prefetch and -Mm combined with the -Dsrv COMPRESS=1 parameter can enhance performance even more. The COMPRESS option can compress records up to 50%. In the example, the DataServer can compress the 500 byte records by 50% so that it can pack four records into one message.
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