CSE 121 Fa 2000 -- Lecture 10 -- Oct 24, 2000
- Homework project.
- Finished select [solaris].
- Buffer cache entry points: bread, brelse,
bwrite, bawrite (asynchronous), bdwrite
- Design alternative: No buffer cache (a variation tried out in
Mach). In a buffer cache system, the number of buffer cache entries
and amount of memory used for buffer caches are decided at
configuration or during boot up, so the amount of memory allocated for
buffers and the amount allocated for processes' memory is not as
- bufhash; LOCKED, LRU, AGE, and EMPTY lists. how buffers are
moved among these lists. bufhash and buffer headers no longer
use/contain the disk address. why was this design choice made? what
are the implications?
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