Support accurate short delays in the timer code, to speed up disk
authorBen Pfaff <blp@cs.stanford.edu>
Mon, 13 Dec 2004 22:42:01 +0000 (22:42 +0000)
committerBen Pfaff <blp@cs.stanford.edu>
Mon, 13 Dec 2004 22:42:01 +0000 (22:42 +0000)
commita40483c415f3b61066ddcc4890c0aedfca723f26
tree5bd2e26cb1e46c85565beb3ef5a9dc593d4806a8
parent553ea4c4cb4a50a609ab826b361800c8a5532ec5
Support accurate short delays in the timer code, to speed up disk
access.  (Before, a "400 ns" sleep took up to 1/TIMER_FREQ seconds.
Now it should be an accurate delays.)

Update projects, tour.
doc/threads.texi
doc/tour.texi
src/devices/disk.c
src/devices/timer.c
src/devices/timer.h
src/threads/init.c