freebsd-skq/sys/sys
cem 6659d8ab68 Drop CACHE_LINE_SIZE to 64 bytes on x86
The actual cache line size has always been 64 bytes.

The 128 number arose as an optimization for Core 2 era Intel processors.  By
default (configurable in BIOS), these CPUs would prefetch adjacent cache
lines unintelligently.  Newer CPUs prefetch more intelligently.

The latest Core 2 era CPU was introduced in September 2008 (Xeon 7400
series, "Dunnington").  If you are still using one of these CPUs, especially
in a multi-socket configuration, consider locating the "adjacent cache line
prefetch" option in BIOS and disabling it.

Reported by:	mjg
Reviewed by:	np
Discussed with:	jhb
Sponsored by:	Dell EMC Isilon
2017-08-28 22:28:41 +00:00
..
disk
_bitset.h
_bus_dma.h
_callout.h
_cpuset.h
_ffcounter.h
_iovec.h
_kstack_cache.h
_lock.h
_lockmgr.h
_mutex.h
_null.h
_pctrie.h Merge ^/head r321239 through r321306. 2017-07-20 20:37:23 +00:00
_pthreadtypes.h
_rmlock.h
_rwlock.h
_semaphore.h
_sigset.h
_sockaddr_storage.h
_stack.h
_stdint.h
_sx.h
_task.h
_termios.h Relax visibility for some termios symbols. 2017-08-04 09:45:40 +00:00
_timespec.h
_timeval.h
_types.h Define a new __INO64 macro in <sys/_types.h>, to indicate the system 2017-05-26 16:29:55 +00:00
_ucontext.h
_umtx.h
_unrhdr.h
_vm_domain.h
aac_ioctl.h
acct.h Solve the y2038 problem for powerpc 2017-06-26 02:25:19 +00:00
acl.h
agpio.h
aio.h
alq.h
apm.h
assym.h
ata.h Fix IORDY bits definition. 2017-07-29 13:54:28 +00:00
bio.h
bitset.h Fix BIT_FLS(). 2017-07-11 12:35:44 +00:00
bitstring.h
blist.h The *_meta_* functions include a radix parameter, a blk parameter, and 2017-08-13 16:39:49 +00:00
boot.h
buf_ring.h
buf.h Add the definition of maxbcachebuf to sys/buf.h. 2017-06-19 22:07:53 +00:00
bufobj.h
bus_dma_internal.h Clean up MD pollution of bus_dma.h: 2017-07-01 05:35:29 +00:00
bus_dma.h Clean up MD pollution of bus_dma.h: 2017-07-01 05:35:29 +00:00
bus.h
busdma_bufalloc.h
callout.h
capability.h
caprights.h
capsicum.h
cdefs.h Make _Static_assert() work with GCC in older C++ standards. 2017-08-28 09:35:17 +00:00
cdio.h
cdrio.h
cfictl.h
chio.h
clock.h Add clock_schedule(), a feature that allows realtime clock drivers to 2017-07-31 01:18:21 +00:00
cnv.h
condvar.h
conf.h Rename mkdumpheader() and group EKCD functions in kern_shutdown.c. 2017-08-18 04:04:09 +00:00
cons.h
consio.h Support setting the colors of cursors for the VGA renderer. 2017-08-25 07:04:41 +00:00
copyright.h Bump copyright year. 2017-07-30 06:27:32 +00:00
counter.h
cpu.h
cpuctl.h
cpuset.h Extend cpuset_get/setaffinity() APIs 2017-05-03 18:41:08 +00:00
ctype.h
dataacq.h
devicestat.h
devmap.h
digiio.h
dir.h
dirent.h Commit the 64-bit inode project. 2017-05-23 09:29:05 +00:00
disk_zone.h
disk.h
disklabel.h
diskmbr.h
dkstat.h
dnv.h
domain.h
dtrace_bsd.h
dvdio.h
efi.h Merge ^/head r321239 through r321306. 2017-07-20 20:37:23 +00:00
efiio.h
elf32.h
elf64.h
elf_common.h
elf_generic.h
elf.h
endian.h
errno.h
eui64.h
event.h Add abstime kqueue(2) timers and expand struct kevent members. 2017-06-17 00:57:26 +00:00
eventhandler.h
eventvar.h
exec.h
extattr.h
fail.h
fbio.h Attempt to determine the modes in which 8-bit wide characters are actually 2017-04-20 13:46:55 +00:00
fcntl.h
fdcio.h
file.h
filedesc.h
filio.h
firmware.h
fnv_hash.h
gmon.h
gpio.h
gpt.h
gtaskqueue.h Move some other SI_SUB_INIT_IF initializations to SI_SUB_TASKQ 2017-08-18 18:55:07 +00:00
gzio.h
hash.h
hhook.h
iconv.h
imgact_aout.h
imgact_binmisc.h
imgact_elf.h
imgact.h
inflate.h
interrupt.h Extend cpuset_get/setaffinity() APIs 2017-05-03 18:41:08 +00:00
intr.h
ioccom.h
ioctl_compat.h
ioctl.h
iov_schema.h
iov.h
ipc.h
ipmi.h
jail.h - Extend pr_allow flags visually to 32 bits, to make it more obvious at first look how much flags we still 2017-07-09 06:40:16 +00:00
joystick.h
kbio.h
kdb.h
kenv.h
kernel.h Add SI_SUB_TASKQ after SI_SUB_INTR and move taskqueue initialization there for EARLY_AP_STARTUP 2017-08-16 21:42:27 +00:00
kerneldump.h Rename mkdumpheader() and group EKCD functions in kern_shutdown.c. 2017-08-18 04:04:09 +00:00
khelp.h
kobj.h - Also outside of the KOBJOPLOOKUP macro - which in turn is used by 2017-05-08 21:08:39 +00:00
ksem.h
kthread.h
ktr_class.h
ktr.h
ktrace.h
libkern.h armv8 has support for optional CRC32C instructions. This patch checks if they are 2017-04-27 17:53:05 +00:00
limits.h
link_aout.h
link_elf.h
linker_set.h
linker.h
lock_profile.h
lock.h
lockf.h
lockmgr.h
lockstat.h
loginclass.h
mac.h
malloc.h
mbpool.h
mbuf.h Fixed typo. 2017-04-08 04:41:46 +00:00
mchain.h
md4.h
md5.h
mdioctl.h Add ability to label md(4) devices. 2017-08-28 15:54:07 +00:00
memdesc.h
memrange.h
mman.h Implement address space guards. 2017-06-24 17:01:11 +00:00
module_khelp.h
module.h Add the infrastructure to support loading multiple versions of TCP 2017-06-08 20:41:28 +00:00
mount.h Add MD_VERIFY option to enable O_VERIFY in open for vnode type. 2017-05-31 21:18:11 +00:00
mouse.h
mpt_ioctl.h
mqueue.h
msg.h
msgbuf.h
mtio.h
mutex.h
namei.h
nlist_aout.h
numa.h
nv.h
osd.h
param.h Drop CACHE_LINE_SIZE to 64 bytes on x86 2017-08-28 22:28:41 +00:00
pciio.h
pcpu.h - Remove 'struct vmmeter' from 'struct pcpu', leaving only global vmmeter 2017-04-17 17:34:47 +00:00
pctrie.h Make the number of children for pctrie node available outside subr_pctrie.c. 2017-07-27 16:40:14 +00:00
pioctl.h
pipe.h
pmc.h Fix HWPMC interrupt handling in Counting Mode 2017-06-13 18:51:23 +00:00
pmckern.h
pmclog.h
poll.h
posix4.h
power.h
priority.h
priv.h
proc.h Move struct syscall_args syscall arguments parameters container into 2017-06-12 21:03:23 +00:00
procctl.h
procdesc.h
procfs.h
protosw.h
ptio.h
ptrace.h Store a 32-bit PT_LWPINFO struct for 32-bit process core dumps. 2017-06-29 21:31:13 +00:00
queue.h
racct.h
random.h Replace the RC4 algorithm for generating in-kernel secure random 2017-04-16 09:11:02 +00:00
rangelock.h
rctl.h
reboot.h
refcount.h Correct fences for sys/refcount.h. 2017-06-30 16:16:21 +00:00
regression.h
resource.h
resourcevar.h
rman.h
rmlock.h
rtprio.h
runq.h
rwlock.h
sbuf.h Implement simple record boundary tracking in sbuf(9) to avoid record splitting 2017-08-17 07:20:09 +00:00
sched.h
sdt.h
select.h
selinfo.h
sem.h
sema.h
seq.h
serial.h
sf_buf.h
sglist.h sglist.h: Fix sg_refs signedness to match refcount(9) 2017-06-22 15:52:18 +00:00
shm.h
sigio.h
signal.h Store a 32-bit PT_LWPINFO struct for 32-bit process core dumps. 2017-06-29 21:31:13 +00:00
signalvar.h
sleepqueue.h
slicer.h
smp.h subr_smp: Clean up topology analysis, add additional layers 2017-08-22 00:10:15 +00:00
snoop.h
sockbuf.h Provide sbsetopt() that handles socket buffer related socket options. 2017-06-25 01:41:07 +00:00
socket.h Listening sockets improvements. 2017-06-08 21:30:34 +00:00
socketvar.h Listening sockets improvements. 2017-06-08 21:30:34 +00:00
sockio.h Persistently store NIC's hardware MAC address, and add a way to retrive it 2017-05-10 22:13:47 +00:00
sockopt.h Rename accept filter getopt/setopt functions, so that they are prefixed 2017-06-02 17:49:21 +00:00
sockstate.h
soundcard.h
spigenio.h
stack.h
stat.h Commit the 64-bit inode project. 2017-05-23 09:29:05 +00:00
statvfs.h
stdatomic.h
stddef.h
stdint.h
sun_disklabel.h
sx.h
syscall.h Regen. 2017-06-17 00:58:19 +00:00
syscall.mk Regen. 2017-06-17 00:58:19 +00:00
syscallsubr.h Commit the 64-bit inode project. 2017-05-23 09:29:05 +00:00
sysctl.h
sysent.h Merge ^/head r320971 through r320993. 2017-07-14 17:38:44 +00:00
syslimits.h
syslog.h
sysproto.h Regen. 2017-06-17 00:58:19 +00:00
systm.h Allow sysctl kern.vm_guest to return bhyve when running under bhyve. 2017-06-08 04:02:14 +00:00
taskqueue.h Add SI_SUB_TASKQ after SI_SUB_INTR and move taskqueue initialization there for EARLY_AP_STARTUP 2017-08-16 21:42:27 +00:00
terminal.h
termios.h
thr.h
tiio.h
time.h Add inline functions to convert between sbintime_t and decimal time units. 2017-07-29 17:00:23 +00:00
timeb.h
timeet.h
timeffc.h
timepps.h
timers.h
times.h
timespec.h
timetc.h
timex.h
tree.h
tty.h Commit the 64-bit inode project. 2017-05-23 09:29:05 +00:00
ttycom.h
ttydefaults.h
ttydevsw.h
ttydisc.h
ttyhook.h
ttyqueue.h
turnstile.h
types.h Remove trivial comments. Remove and-ing with UINT_MAX for minor(), 2017-08-06 12:27:20 +00:00
ucontext.h
ucred.h
uio.h
umtx.h
un.h
unistd.h
unpcb.h Remove write only flag UNP_HAVEPCCACHED. 2017-06-02 17:39:05 +00:00
user.h procstat(1): Add TCP socket send/recv buffer size 2017-05-26 22:17:44 +00:00
utsname.h
uuid.h Add a helper function for comparing struct uuids. 2017-06-12 20:14:44 +00:00
vdso.h
vmem.h
vmmeter.h - Remove 'struct vmmeter' from 'struct pcpu', leaving only global vmmeter 2017-04-17 17:34:47 +00:00
vnode.h Allow vinvalbuf() to operate with the shared vnode lock. 2017-08-20 10:07:45 +00:00
vtoc.h
wait.h
watchdog.h
zlib.h
zutil.h