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Aucbvax.2267 fa.unix-wizards utzoo!duke!decvax!ucbvax!woods@LL-ASG Mon Jul 13 12:05:17 1981 UNIBUS mapalloc From: woods at LL-ASG (John Woods) I now have completed the UNIBUS map which I was working on (and announced a trial version of). Mapalloc now hands the unibus out in 8K chunks (one map register at a time), and though I haven't been able to run any conclusive benchmarks, it seems to provide some improvement. There have been some problems with asking RL02 drives to share the UNIBUS; their marginal design causes them to fail in the presence of any contention for the attention of the UNIBUS. Devices with reasonable buffering and/or no time constraints should experience no problems at all.

Happy Hacking! -- John Woods

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