Effect of trace on WebSphere MQ performance

Using the WebSphere MQ trace facility can have a significant effect on WebSphere MQ and transaction performance. For example, if you start a global trace for class 1 or for all classes, it is likely to increase CPU usage and transaction response times by approximately 50%. However, if you start a global trace for classes 2 to 4 alone, or a statistics or accounting trace, the increase in CPU usage and transaction response times is likely to be less than 1% additional CPU cost to the cost of WebSphere MQ calls.