Is the channel using compression?

If the channel is using compression, this will add to the time spent processing messages.

If only one compression algorithm is being used, do the following:

1. In the output of the command

   DIS CHSTATUS(QM1.TO.QM2) ALL, check the COMPTIME field.

   These indicators show the time spent during compression or decompression.

2. If the chosen compression is not reducing the amount of data to send by the expected amount, then change the compression algorithm.

If multiple compression algorithms are being used, do the following:

1. In the output of the command

   DIS CHSTATUS(QM1.TO.QM2) ALL, check the COMPTIME, COMPHDR, and COMPMSG fields.

2. Change the compression algorithms specified on the channel definition, or consider writing a message exit to override the channel's choice of compression algorithm for particular messages if the rate of compression, or choice of algorithm, is not providing the required compression or performance.