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Review request for Default. Repository: gem5 Description ------- Changeset 10818:c9c3503b043a --------------------------- mem: Avoid DRAM write queue iteration for merging and read lookup This patch adds a simple lookup structure to avoid iterating over the write queue to find read matches, and for the merging of write bursts. Instead of relying on iteration we simply store a set of currently-buffered write-burst addresses and compare against these. For the reads we still perform the iteration if we have a match. For the writes, we rely entirely on the set. Note that there are corner-cases where sub-bursts would actually not be mergeable without a read-modify-write. We ignore these cases and opt for speed. Diffs ----- src/mem/dram_ctrl.hh df2aa91dba5b src/mem/dram_ctrl.cc df2aa91dba5b Diff: http://reviews.gem5.org/r/2746/diff/ Testing ------- Thanks, Andreas Hansson _______________________________________________ gem5-dev mailing list gem5-dev@gem5.org http://m5sim.org/mailman/listinfo/gem5-dev
