To improve performance, FLEXlm network traffic should be minimized. With the most common uses of FLEXlm, traffic is negligible. In particular, checkout, check-in, and heartbeats use very little networking traffic. There are two items, however, which can send considerably more data and should be avoided or used sparingly:
- lmstat -a should be used sparingly. It should not be used more than once every 15 minutes and it should be particularly avoided when there are a lot of features or concurrent users, resulting in a large amount of data to transmit; more than 20 concurrent users or features.
- Prior to FLEXlm v5, the port@host mode of the LM_LICENSE_FILE environment variable should be avoided, especially when the license file has many features, or there are a lot of license files included in LM_LICENSE_FILE. The license file information is sent via the network and can place a heavy load. Failures due to port@host will generate the error LM_SERVNOREADLIC (-61).
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