Mike Smith af1f6e0673 Implement a simple LRU block cache. By default this is initialised to 16k, ... and will bypass transfers for more than 8k. Blocks are invalidated after 2 seconds, so removable media should not confuse the cache. The 8k threshold is a compromise; all UFS transfers performed by libstand are 8k or less, so large file reads thrash the cache. However many filesystem metadata operations are also performed using 8k blocks, so using a lower threshold gives poor performance. Those of you with an eye for cache algorithms are welcome to tell me how badly this one sucks; you can start with the 'bcachestats' command which will print the contents of the cache and access statistics.		1998-11-02 23:28:11 +00:00
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main.c	Implement a simple LRU block cache. By default this is initialised to 16k,	1998-11-02 23:28:11 +00:00
setdef0.c
setdef1.c