thorpej 16c229ea7c Optimization suggested by Bill Sommerfeld: Keep a hint as to the ... "earliest" firing callout in a bucket. This allows us to skip the scan up the bucket if no callouts are due in the bucket. A cheap O(1) hint update is done at callout insertion (if new callout is earlier than hint) and removal (is bucket empty). A thorough refresh of the hint is done when the bucket is traversed. This doesn't matter much on machines with small values of hz (e.g. i386), but on systems with large values of hz (e.g. Alpha), it has a definite positive effect. Also, keep the callwheel stats in evcnts, so that you can view them with "vmstat -e".		2001-09-11 04:32:19 +00:00
..
db_access.c
db_access.h
db_aout.c
db_aout.h
db_break.c	replace vm_map{,_entry}_t with struct vm_map{,_entry} *.	2001-06-02 18:09:08 +00:00
db_break.h	replace vm_map{,_entry}_t with struct vm_map{,_entry} *.	2001-06-02 18:09:08 +00:00
db_command.c	Add `show malloc' to dump the internal state of the MALLOC_DEBUG code.	2001-08-17 01:00:10 +00:00
db_command.h	Add `show malloc' to dump the internal state of the MALLOC_DEBUG code.	2001-08-17 01:00:10 +00:00
db_elf.c	Extra sanity checking on ELF headers: Make sure the bootloader actually	2001-07-31 22:31:47 +00:00
db_examine.c
db_expr.c
db_extern.h
db_input.c	Fix CTRL-T to behave properly. It should swaps the current and previous	2000-07-28 16:33:39 +00:00
db_interface.h	Add an easy way to dump the message buffer from ddb.	2001-07-31 04:28:16 +00:00
db_lex.c	printf format safety	2000-07-08 17:10:22 +00:00
db_lex.h
db_output.c	allow one to #define DB_MAX_LINE and DB_MAX_WIDTH independantly.	2001-07-01 12:16:25 +00:00
db_output.h
db_print.c
db_run.c
db_run.h
db_sym.c	Add a port to IBM's PPC405GP Reference Board (the "walnut")	2001-06-13 06:01:44 +00:00
db_sym.h
db_trap.c
db_variables.c
db_variables.h
db_watch.c	Update pmap_update to now take the updated pmap as an argument.	2001-09-10 21:19:08 +00:00
db_watch.h	replace vm_map{,_entry}_t with struct vm_map{,_entry} *.	2001-06-02 18:09:08 +00:00
db_write_cmd.c
db_xxx.c	Optimization suggested by Bill Sommerfeld: Keep a hint as to the	2001-09-11 04:32:19 +00:00
ddbvar.h	Add options DDB_FROMCONSOLE and sysctl ddb.fromconsole, analagous to	1998-10-29 21:22:32 +00:00
TODO