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Review request for Default. Description ------- Changeset 9672:6374801ba8f9 --------------------------- mem: Avoid explicitly zeroing the memory backing store This patch removes the explicit memset as it is redundant and causes the simulator to touch the entire space, forcing the host system to allocate the pages. Anonymous pages are mapped on the first access, and the page-fault handler is responsible for zeroing them. Thus, the pages are still zeroed, but we avoid touching the entire allocated space which enables us to use much larger memory sizes as long as not all the memory is actually used. Diffs ----- configs/common/FSConfig.py c5b24e8ed428 src/dev/arm/RealView.py c5b24e8ed428 src/mem/AbstractMemory.py c5b24e8ed428 src/mem/abstract_mem.hh c5b24e8ed428 src/mem/physical.cc c5b24e8ed428 Diff: http://reviews.gem5.org/r/1833/diff/ Testing ------- All regressions pass Thanks, Andreas Hansson _______________________________________________ gem5-dev mailing list [email protected] http://m5sim.org/mailman/listinfo/gem5-dev
