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c794ceb56a
freebsd-dev/sys
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Paul Saab c794ceb56a Implement write combining for crashdumps. This is useful when 
write caching is disabled on both SCSI and IDE disks where large
memory dumps could take up to an hour to complete.

Taking an i386 scsi based system with 512MB of ram and timing (in
seconds) how long it took to complete a dump, the following results
were obtained:

Before:				After:
	WCE           TIME		WCE           TIME
	------------------		------------------
	1	141.820972		1	 15.600111
	0	797.265072		0	 65.480465

Obtained from:	Yahoo!
Reviewed by:	peter
2000-10-17 10:05:49 +00:00
..
alpha Implement write combining for crashdumps. This is useful when 2000-10-17 10:05:49 +00:00
amd64 Implement write combining for crashdumps. This is useful when 2000-10-17 10:05:49 +00:00
boot Convert from the Alpha compontents to PowerPC ones. 2000-10-16 19:58:32 +00:00
cam Implement write combining for crashdumps. This is useful when 2000-10-17 10:05:49 +00:00
coda Forward-declare struct mbuf so that this file is less self-insufficient 2000-10-05 11:58:22 +00:00
compat A start at an implemention of linux_rt_sendsig & linux_rt_sigreturn 2000-10-17 00:00:20 +00:00
compile
conf Add new bktr options 2000-10-17 07:59:56 +00:00
contrib/dev Remove unneeded #include <machine/clock.h> 2000-10-15 14:19:01 +00:00
crypto Fix broken const'ness in declaration of sha1_loop(). 2000-10-09 18:49:14 +00:00
ddb Previous commit changing SYSCTL_HANDLER_ARGS violated KNF. 2000-07-04 11:25:35 +00:00
dev Implement write combining for crashdumps. This is useful when 2000-10-17 10:05:49 +00:00
fs Fix nullfs breakage caused by incomplete migration of v_interlock from 2000-10-15 06:25:42 +00:00
geom Avoid the modules madness I inadvertently introduced by making the 2000-09-02 19:17:34 +00:00
gnu Remove unneeded #include <machine/clock.h> 2000-10-15 14:19:01 +00:00
i4b Remove unneeded #include <machine/clock.h> 2000-10-15 14:19:01 +00:00
i386 Implement write combining for crashdumps. This is useful when 2000-10-17 10:05:49 +00:00
ia64 Implement write combining for crashdumps. This is useful when 2000-10-17 10:05:49 +00:00
isa Remove unneeded #include <machine/clock.h> 2000-10-15 14:19:01 +00:00
isofs/cd9660 Blow away the v_specmountpoint define, replacing it with what it was 2000-10-09 17:31:39 +00:00
kern Put the header section in the header file not the c file. 2000-10-15 15:19:35 +00:00
libkern Fix compilation of profiled kernels by including <machine/lock.h> 2000-10-14 08:34:27 +00:00
miscfs Fix nullfs breakage caused by incomplete migration of v_interlock from 2000-10-15 06:25:42 +00:00
modules After some complaints about the dir names, the random device is 2000-10-14 10:59:56 +00:00
msdosfs Blow away the v_specmountpoint define, replacing it with what it was 2000-10-09 17:31:39 +00:00
net BPF wants packets in host byte order whereas TUN_IFHEAD wants them 2000-10-15 18:49:17 +00:00
netatalk Just need to pass the address family to if_simloop(), not the whole sockaddr. 2000-05-24 21:16:56 +00:00
netatm Remove unneeded #include <machine/clock.h> 2000-10-15 14:19:01 +00:00
netgraph Remove unneeded #include <machine/clock.h> 2000-10-15 14:19:01 +00:00
netinet Backout my wrong attempt to fix the compilation warning in ip_input.c 2000-10-12 16:33:41 +00:00
netinet6 Fix broken const'ness in declaration of sha1_loop(). 2000-10-09 18:49:14 +00:00
netipx Add $FreeBSD$ 2000-05-01 20:32:07 +00:00
netkey make sure we have IV that is random enough. memory allocator on 2000-08-28 08:24:46 +00:00
netnatm Back out the previous change to the queue(3) interface. 2000-05-26 02:09:24 +00:00
netncp Convert lockmgr locks from using simple locks to using mutexes. 2000-10-04 01:29:17 +00:00
netns Clean up some loose ends in the network code, including the X.25 and ISO 2000-02-13 03:32:07 +00:00
nfs Make nfs PDIRUNLOCK aware. Now it is possible to use nullfs mounts on top 2000-10-15 08:06:32 +00:00
nfsclient Make nfs PDIRUNLOCK aware. Now it is possible to use nullfs mounts on top 2000-10-15 08:06:32 +00:00
nfsserver Major update to the way synchronization is done in the kernel. Highlights 2000-09-07 01:33:02 +00:00
ntfs Blow away the v_specmountpoint define, replacing it with what it was 2000-10-09 17:31:39 +00:00
nwfs Convert lockmgr locks from using simple locks to using mutexes. 2000-10-04 01:29:17 +00:00
pc98 Remove unneeded #include <machine/clock.h> 2000-10-15 14:19:01 +00:00
pccard Remove unneeded #include <machine/clock.h> 2000-10-15 14:19:01 +00:00
pci Add support for cardbus card's chips. This will make the 3c575 cards 2000-10-16 23:16:02 +00:00
posix4 Add $FreeBSD$ 2000-05-01 20:32:07 +00:00
powerpc Move DELAY() from <machine/clock.h> to <sys/systm.h> 2000-10-15 09:51:49 +00:00
rpc
sys Correct check for NULL in MEXT_INIT_REF() which should be checking whether 2000-10-15 17:57:00 +00:00
tools remove crufty exec stuff, perl is in the base system 2000-06-27 19:09:55 +00:00
ufs Initial commit of IFS - a inode-namespaced FFS. Here is a short 2000-10-14 03:02:30 +00:00
vm Implement write combining for crashdumps. This is useful when 2000-10-17 10:05:49 +00:00
Makefile I should know better than to touch this without testing a 'make release' 2000-08-24 18:53:09 +00:00