linux-stable/Documentation
Jerome Marchand 49f0ce5f92 mm: add overcommit_kbytes sysctl variable
Some applications that run on HPC clusters are designed around the
availability of RAM and the overcommit ratio is fine tuned to get the
maximum usage of memory without swapping.  With growing memory, the
1%-of-all-RAM grain provided by overcommit_ratio has become too coarse
for these workload (on a 2TB machine it represents no less than 20GB).

This patch adds the new overcommit_kbytes sysctl variable that allow a
much finer grain.

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: fix nommu build]
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-21 16:19:44 -08:00
..
ABI USB patches for 3.14-rc1 2014-01-20 16:13:02 -08:00
accounting
acpi GPIO tree bulk changes for v3.14 2014-01-21 10:09:12 -08:00
aoe
arm gpio: samsung: Update documentation 2014-01-07 19:00:59 +01:00
arm64
auxdisplay
backlight backlight: lp855x_bl: support new LP8555 device 2013-11-13 12:09:14 +09:00
blackfin
block null_blk: set use_per_node_hctx param to false 2013-12-21 09:30:33 -07:00
blockdev floppy: Correct documentation of driver options when used as a module. 2013-11-08 09:10:31 -07:00
bus-devices
cdrom
cgroups memcg: support hierarchical memory.numa_stats 2013-11-13 12:09:06 +09:00
connector
console
cpu-freq
cpuidle
cris
crypto
development-process
device-mapper dm cache: update Documentation for invalidate_cblocks's range syntax 2013-12-10 16:35:15 -05:00
devicetree Highlights: 2014-01-21 11:36:20 -08:00
DocBook Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2013-12-12 11:06:13 -08:00
driver-model Staging driver tree patches for 3.14-rc1 2014-01-20 15:51:35 -08:00
dvb
early-userspace
EDID
extcon extcon: fix switch class porting guide (Documentation) 2014-01-07 11:54:28 +09:00
fault-injection
fb
filesystems /proc/meminfo: provide estimated available memory 2014-01-21 16:19:43 -08:00
firmware_class
fmc
frv
gpio gpiolib: return -ENOENT if no GPIO mapping exists 2013-12-12 19:33:59 +01:00
hid
hwmon Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2013-11-15 16:35:10 -08:00
i2c Documentation: i2c: Remove obsolete example 2014-01-09 23:02:46 +01:00
i2o
ia64
ide
infiniband
input
ioctl
isdn
ja_JP Documentation: ja_JP: Update broken link to tpp 2013-12-10 23:09:08 -08:00
kbuild
kdump
kmsg/s390 s390/zcrypt: add support for EP11 coprocessor cards 2013-12-18 17:37:15 +01:00
ko_KR Documentation: HOWTO: Updates on subsystem trees, patchwork, -next (vs. -mm) in ko_KR 2014-01-08 15:32:51 -08:00
laptops
leds
m68k
make
memory-devices
metag
mic misc: mic: Fix endianness issues. 2013-11-27 11:03:38 -08:00
mips
misc-devices Documentation/misc-devices/mei/mei-amt-version.c: remove unneeded call of mei_deinit() 2014-01-08 15:20:20 -08:00
mmc
mn10300
mtd
namespaces
netlabel
networking ipv4: improve documentation of ip_no_pmtu_disc 2013-12-17 15:20:15 -05:00
nfc
parisc
PCI
pcmcia
power More ACPI and power management updates for 3.13-rc1 2013-11-20 13:25:04 -08:00
powerpc
pps
prctl
pti
ptp
rapidio
RCU Merge branches 'doc.2013.12.03a', 'fixes.2013.12.12a', 'rcutorture.2013.12.03a' and 'sparse.2013.12.12a' into HEAD 2013-12-12 12:35:38 -08:00
s390
scheduler H8/300 has been dead for several years, the kernel for it has 2013-11-12 14:13:14 +09:00
scsi
security ima: update IMA-templates.txt documentation 2014-01-03 07:42:59 -05:00
serial
sh
sound ASoC: docs: Update the Overview document 2014-01-07 17:56:32 +00:00
spi
sysctl mm: add overcommit_kbytes sysctl variable 2014-01-21 16:19:44 -08:00
target
thermal
timers
tpm
trace Documentation/trace/tracepoints.txt: add links to TRACE_EVENT documentation 2013-11-13 12:09:32 +09:00
usb
vDSO
video4linux
virtual
vm mm: add overcommit_kbytes sysctl variable 2014-01-21 16:19:44 -08:00
w1
watchdog
wimax
x86 x86: Add xloadflags bit for EFI runtime support on kexec 2013-12-29 13:09:06 +00:00
xtensa
zh_CN Documentation: zh_CN: Update broken link to tpp 2013-12-10 23:09:08 -08:00
.gitignore
00-INDEX
applying-patches.txt
assoc_array.txt KEYS: Fix multiple key add into associative array 2013-12-02 11:24:18 +00:00
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
bcache.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
Changes remove obsolete references to powertweak 2013-11-27 20:34:32 -08:00
circular-buffers.txt documentation: Update circular buffer for load-acquire/store-release 2013-12-03 10:08:57 -08:00
clk.txt
coccinelle.txt
CodingStyle
cpu-hotplug.txt MAINTAINERS: update Zwane Mwaikambo's e-mail address 2013-11-13 12:09:14 +09:00
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt
digsig.txt
DMA-API-HOWTO.txt
DMA-API.txt
DMA-attributes.txt
dma-buf-sharing.txt
DMA-ISA-LPC.txt
dmaengine.txt
dmatest.txt dmatest: add a 'wait' parameter 2013-11-14 11:04:40 -08:00
dontdiff
dynamic-debug-howto.txt
edac.txt
efi-stub.txt
eisa.txt
email-clients.txt
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt gcov: compile specific gcov implementation based on gcc version 2013-11-13 12:09:34 +09:00
highuid.txt
HOWTO Documentation: HOWTO: Update broken links to tpp 2013-12-10 23:09:08 -08:00
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt
Intel-IOMMU.txt
intel_txt.txt
io-mapping.txt
io_ordering.txt
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt Merge branch 'x86-kaslr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-01-20 14:45:50 -08:00
kernel-per-CPU-kthreads.txt
kmemcheck.txt
kmemleak.txt
kobject.txt kobject: remove kset from sysfs immediately in kset_unregister() 2013-12-07 21:20:11 -08:00
kprobes.txt
kref.txt
ldm.txt
local_ops.txt
lockdep-design.txt
lockstat.txt
lockup-watchdogs.txt
logo.gif
logo.txt
magic-number.txt
Makefile
ManagementStyle
md.txt
media-framework.txt
memory-barriers.txt locking/doc: Rename LOCK/UNLOCK to ACQUIRE/RELEASE 2014-01-12 10:37:13 +01:00
memory-hotplug.txt
module-signing.txt Add Documentation/module-signing.txt file 2013-12-13 15:59:11 +00:00
mono.txt
mutex-design.txt locking/doc: Update references to kernel/mutex.c 2013-11-11 12:41:33 +01:00
nommu-mmap.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
phy.txt
pi-futex.txt
pinctrl.txt pinctrl: Fix some typos and grammar issues in the documentation 2014-01-15 13:59:50 +01:00
pnp.txt
preempt-locking.txt
printk-formats.txt
pwm.txt
ramoops.txt
rbtree.txt
remoteproc.txt
rfkill.txt
robust-futex-ABI.txt Documentation/robust-futex-API: Count properly to 4 2013-11-30 14:08:28 +01:00
robust-futexes.txt
rpmsg.txt
rt-mutex-design.txt
rt-mutex.txt
rtc.txt
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
smsc_ece1099.txt
sparse.txt
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt
static-keys.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches
svga.txt
sysfs-rules.txt
sysrq.txt
this_cpu_ops.txt
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
vme_api.txt VME: Rename vme_slot_get to avoid confusion with reference counting 2013-12-03 11:15:58 -08:00
volatile-considered-harmful.txt
workqueue.txt
ww-mutex-design.txt
xz.txt
zorro.txt zorro/UAPI: Disintegrate include/linux/zorro*.h 2013-11-26 11:09:08 +01:00