{ CompressionThreshold | COMPTH }=size[ k ]

Anywhere except TDS. Only applies to compressed connections.

120

If no CompressionThreshold value is set, the compression threshold value is controlled by the setting on the server, which defaults to 120 bytes.

Changing the compression threshold can help performance of a compressed connection by allowing you to only compress packets when compression will increase the speed at which the packets are transferred.

When compression is enabled, individual packets may or may not be compressed, depending on their size. For example, SQL Anywhere does not compress packets smaller than the compression threshold, even if communication compression is enabled. As well, small packets (less than about 100 bytes) usually do not compress at all. Since CPU time is required to compress packets, attempting to compress small packets could actually decrease performance.

Lowering the compression threshold value may improve performance on very slow networks, while raising the compression threshold may improve performance by reducing CPU. However, since lowering the compression threshold value will increase CPU usage on both the client and server, a performance analysis should be done to determine whether changing the compression threshold is beneficial.

• -pt database server option
• Communication compression settings
• Connection parameters and connection strings

Connect, with a compression threshold of 100 bytes.

CompressionThreshold=100