Improve CA XCOM Windows transfer performance

Document ID : KB000073189
Last Modified Date : 31/10/2018
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Introduction:

The transfer rate is based on SNA or TCP/IP and the underlying network. Adequate resources are essential for good performance.​

Environment:
XCOM r11.6 for Windows Family
Instructions:

Here are a few suggestions that may help in improving performance:

  • Most important - enable record packing.  carriage_flag=xpack 
  • transfer big blocks of data
  • for SNA- tune the response unit (RUSIZE) and pacing count
  • disable tracing
  • disable checkpointing (ckpt=0) or raise the checkpoint interval to the maximum
  • If you use compression, t​​​est different compression methods to see what works best with your data.  In many cases, compression is not needed or even recommended.
  • Raise the STAT_FREQUENCY parameter in xcom.glb
  • Lower the EXPIRATION_TIME
  • Raise the Maximum Clients Value if appropriate.
  • Configure the xcom.ses file to send simultaneous transfers.  If you do not set a value here, transfers will go one by one.
Additional Information:
For more information on raising the Maximum Client value, please refer to the following Knowledge Document:

https://comm.support.ca.com/kb/increasing-throughput-avoiding-socket-errors-going-to-windows/kb000056022

See How to provide Performance Tuning in our online documentation