To find out how many floating license seats are in use at a given point in time, you should run the lmutil lmstat command, with appropriate arguments, on the server. The license server log is not suitable for the purpose of usage analysis, as at high server loading or with certain types of license file configuration, you may get incomplete or misleading results.

The lmutil lmstat command can generate text output which will indicate which user is using what version of a license component, and when the license was granted. By selecting the appropriate arguments, such as -i for information from the FEATURE/INCREMENT line for the specified feature, or -a for all information, you can collect snapshot information of your license usage. You can then run the output through a text parser if you wish to analyze the data in more detail. Further information on the lmutil lmstat command can be found in the FLEXlm End Users Guide, which is supplied as a PDF with your ARM development tools.

You should be aware that there is a trade-off between increased temporal resolution of your usage data and server loading, especially if you have a high turnover licensing environment. The lmutil lmstat command can consume a significant fraction of your server’s CPU resource, especially if the -a switch is used. At very high loadings (>1000 checkouts/minute) the resulting data are known to be inaccurate simply because not all transactions can be recorded during the data collection period.