What are typical buffer manager I/O overheads?
I was reading Stonebraker's paper on Operating System support for databases, and came across a statistic - "For a PDP-11 UNIX system, it takes the buffer manager 5000 CPU instructions to fetch a 512 byte block from disk, and about 1800 to fetch a single byte." Does anyone have an idea as to similar statistics for contemporary Linux/UNIX systems?
-Regards and Thanks,
|All times are GMT -5. The time now is 05:39 PM.|