msmith 7ff854a690 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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boot0	Make configurable (a) whether to use int 0x13 extensions; (b) timeout	1998-10-19 19:13:53 +00:00
boot2	Avoid interruptions while talking to keyboard controller.	1998-10-27 20:19:24 +00:00
btx	Revise a few comments.	1998-11-02 17:53:08 +00:00
gptboot	biosboot compatibility fix: change behavior of backspace in getstr().	1998-10-27 20:16:36 +00:00
libi386	Implement a simple LRU block cache. By default this is initialised to 16k,	1998-11-02 23:28:11 +00:00
loader	Implement a simple LRU block cache. By default this is initialised to 16k,	1998-11-02 23:28:11 +00:00
Makefile	Activate boot2.	1998-10-14 20:40:56 +00:00