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The summary page of the TBECMPCA report provides high level results about the performance of the different compression algorithms. The fastest algorithm, the most efficient algorithm and a recommended algorithm are provided in the Compression and Expansion Summary. Use the results in the following fields to help you determine which compression method might provide you with the best results for your job:
Displays the algorithm that completed compression and expansion of the file (or the number of blocks specified in the STOPAFTER parameter) with the least amount of CPU time. If maximizing CPU time is your highest priority, use this algorithm.
Displays the algorithm that achieved the best compression rate without regard to the amount of CPU time required. In some instances this can be the preferred compression algorithm to use if it results in the tape files selected for compression fitting on a single cartridge.
Displays the method that provides the best balance between compression and CPU utilization. A ratio is calculated for each compression algorithm by dividing the total number of CPU seconds by the percent of compression. The algorithm with the best ratio is selected as the recommended method.
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