Improve CA XCOM Windows transfer performance

Products

• XCOM Data Transport
• XCOM Data Transport - Windows
• XCOM Data Transport - Linux PC
• XCOM Data Transport - z/OS

Issue/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

Resolution

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

See How to provide Performance Tuning in our online documentation