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If the cache access mode is parallel, i.e. "sequential_access" parameter is set to "False", tags and data are accessed in parallel. Therefore, the hit_latency is the maximum latency between tag_latency and data_latency. On the other hand, if the cache access mode is sequential, i.e. "sequential_access" parameter is set to "True", tags and data are accessed sequentially. Therefore, the hit_latency is the sum of tag_latency plus data_latency. Signed-off-by: Jason Lowe-Power <jason@lowepower.com> |
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README |
Learning_gem README ------------------- This directory contains the configuration scripts used in the "Learning gem5" book. The scripts contained in these directories are for educational purposes only and should not be used for architectural research as-is. "Learning gem5" is currently in early development stages. A pre-alpha working version of the book can be found at the following URL. http://lowepower.com/jason/learning_gem5/ This directory is broken into one subdirectory per part of the book. Goals of these scripts ~~~~~~~~~~~~~~~~~~~~~~ These scripts are not necessarily useful outside the scope of the learning gem5 book. The goal is to include the learning gem5 scripts, following the book as closely as possible, so that the regression tester will catch any changes that affect the book. For general users, these are *not* good scripts to use for running complex architectural experiments. These scripts *are* a good starting point example of how to write your own scripts for experiments. Feedback ~~~~~~~~ Send mail to power.jg@gmail.com to provide feedback.