linux-2.6

dect

Archived

This repository has been archived on 2022-02-17. You can view files and clone it, but cannot push or open issues or pull requests.

History

Tejun Heo 3270476a6c workqueue: reimplement WQ_HIGHPRI using a separate worker_pool WQ_HIGHPRI was implemented by queueing highpri work items at the head of the global worklist. Other than queueing at the head, they weren't handled differently; unfortunately, this could lead to execution latency of a few seconds on heavily loaded systems. Now that workqueue code has been updated to deal with multiple worker_pools per global_cwq, this patch reimplements WQ_HIGHPRI using a separate worker_pool. NR_WORKER_POOLS is bumped to two and gcwq->pools[0] is used for normal pri work items and ->pools[1] for highpri. Highpri workers get -20 nice level and has 'H' suffix in their names. Note that this change increases the number of kworkers per cpu. POOL_HIGHPRI_PENDING, pool_determine_ins_pos() and highpri chain wakeup code in process_one_work() are no longer used and removed. This allows proper prioritization of highpri work items and removes high execution latency of highpri work items. v2: nr_running indexing bug in get_pool_nr_running() fixed. v3: Refreshed for the get_pool_nr_running() update in the previous patch. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Josh Hunt <joshhunt00@gmail.com> LKML-Reference: <CAKA=qzaHqwZ8eqpLNFjxnO2fX-tgAOjmpvxgBFjv6dJeQaOW1w@mail.gmail.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fengguang Wu <fengguang.wu@intel.com>		2012-07-13 22:24:45 -07:00
..
ABI	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2012-07-03 15:45:10 -07:00
DocBook	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2012-06-25 14:53:09 -07:00
EDID	…
PCI	…
RCU	…
accounting	…
acpi	…
aoe	…
arm	Viresh has moved	2012-06-20 14:39:36 -07:00
auxdisplay	…
backlight	…
blackfin	…
block	…
blockdev	…
cdrom	…
cgroups	memcg: move charges to root cgroup if use_hierarchy=0	2012-05-29 16:22:27 -07:00
connector	…
console	…
cpu-freq	…
cpuidle	…
cris	…
crypto	…
development-process	…
device-mapper	dm: verity fix documentation	2012-07-03 12:55:41 +01:00
devicetree	dt: mc13xxx.txt: Fix gpio number assignment	2012-06-13 13:34:54 -05:00
driver-model	Pin control subsystem changes for kernel 3.5:	2012-05-21 16:58:23 -07:00
dvb	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2012-05-24 10:21:51 -07:00
early-userspace	…
extcon	…
fault-injection	…
fb	…
filesystems	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-06-01 10:34:35 -07:00
firmware_class	…
frv	…
hid	…
hwmon	hwmon: (coretemp) Document TjMax for 3rd generation i5/i7 processors	2012-06-17 18:05:06 +02:00
i2c	i2c: Split I2C_M_NOSTART support out of I2C_FUNC_PROTOCOL_MANGLING	2012-05-30 10:55:34 +02:00
i2o	…
ia64	…
ide	…
infiniband	…
input	…
ioctl	…
isdn	…
ja_JP	…
kbuild	Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild	2012-05-28 10:37:56 -07:00
kdump	…
ko_KR	…
laptops	…
leds	leds: add new transient trigger for one shot timer activation	2012-05-29 16:22:32 -07:00
m68k	…
make	…
memory-devices	…
mips	…
misc-devices	…
mmc	…
mn10300	…
mtd	…
namespaces	…
netlabel	…
networking	stmmac: update driver's doc	2012-06-06 09:34:56 -07:00
nfc	…
parisc	…
pcmcia	…
power	A bunch of fixes for v3.5, nothing extraordinary.	2012-05-31 12:10:15 -07:00
powerpc	Revert "powerpc/hw-breakpoint: Use generic hw-breakpoint interfaces for new PPC ptrace flags"	2012-05-22 14:37:24 +10:00
pps	…
prctl	security: Minor improvements to no_new_privs documentation	2012-07-08 00:25:48 +10:00
pti	…
ptp	…
rapidio	…
s390	…
scheduler	…
scsi	Merge branch 'delete-mca' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2012-05-23 17:12:06 -07:00
security	…
serial	…
sh	…
sound	Sound updates for 3.5-rc1	2012-05-23 13:05:43 -07:00
spi	…
sysctl	mqueue: separate mqueue default value from maximum value	2012-05-31 17:49:31 -07:00
target	…
telephony	…
thermal	…
timers	…
trace	…
usb	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2012-05-22 19:22:50 -07:00
vDSO	…
video4linux	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2012-05-24 10:21:51 -07:00
virtual	KVM: Add missing KVM_IRQFD API documentation	2012-07-02 21:10:30 -03:00
vm	Frontswap provides a "transcendent memory" interface for swap pages.	2012-06-04 12:28:45 -07:00
w1	…
watchdog	Watchdog: DA9052/53 PMIC watchdog support	2012-05-30 07:56:12 +02:00
wimax	…
x86	x86, efi: Add EFI boot stub documentation	2012-06-01 09:11:41 -07:00
zh_CN	…
.gitignore	…
00-INDEX	…
BUG-HUNTING	…
Changes	…
CodingStyle	CodingStyle: add kmalloc_array() to memory allocators	2012-05-31 17:49:26 -07:00
DMA-API-HOWTO.txt	…
DMA-API.txt	…
DMA-ISA-LPC.txt	…
DMA-attributes.txt	…
HOWTO	…
IPMI.txt	…
IRQ-affinity.txt	…
IRQ-domain.txt	…
IRQ.txt	…
Intel-IOMMU.txt	…
Makefile	…
ManagementStyle	…
SAK.txt	…
SM501.txt	…
SecurityBugs	…
SubmitChecklist	…
SubmittingDrivers	…
SubmittingPatches	Documentation/SubmittingPatches: suggested the use of scripts/get_maintainer.pl	2012-05-25 16:18:30 +02:00
VGA-softcursor.txt	…
applying-patches.txt	…
atomic_ops.txt	…
bad_memory.txt	…
basic_profiling.txt	…
binfmt_misc.txt	…
braille-console.txt	…
bt8xxgpio.txt	…
btmrvl.txt	…
bus-virt-phys-mapping.txt	…
cachetlb.txt	…
circular-buffers.txt	…
clk.txt	…
coccinelle.txt	…
cpu-hotplug.txt	…
cpu-load.txt	…
cputopology.txt	…
crc32.txt	…
dcdbas.txt	…
debugging-modules.txt	…
debugging-via-ohci1394.txt	…
dell_rbu.txt	…
devices.txt	Merge branch 'delete-mca' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2012-05-23 17:12:06 -07:00
digsig.txt	…
dma-buf-sharing.txt	dma-buf: add initial vmap documentation	2012-05-25 12:51:11 +05:30
dmaengine.txt	…
dontdiff	…
dynamic-debug-howto.txt	…
edac.txt	…
eisa.txt	…
email-clients.txt	…
feature-removal-schedule.txt	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-05-31 10:32:36 -07:00
flexible-arrays.txt	…
futex-requeue-pi.txt	…
gcov.txt	…
gpio.txt	…
highuid.txt	…
hw_random.txt	…
hwspinlock.txt	…
init.txt	…
initrd.txt	Documentation/initrd.txt: Change the location of util-linux	2012-05-25 16:18:34 +02:00
intel_txt.txt	…
io-mapping.txt	…
io_ordering.txt	…
iostats.txt	…
irqflags-tracing.txt	…
isapnp.txt	…
java.txt	…
kernel-doc-nano-HOWTO.txt	…
kernel-docs.txt	…
kernel-parameters.txt	Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-06-04 11:25:31 -07:00
kmemcheck.txt	…
kmemleak.txt	…
kobject.txt	…
kprobes.txt	…
kref.txt	…
ldm.txt	…
local_ops.txt	…
lockdep-design.txt	…
lockstat.txt	…
lockup-watchdogs.txt	…
logo.gif	…
logo.txt	…
magic-number.txt	…
md.txt	…
media-framework.txt	…
memory-barriers.txt	…
memory-hotplug.txt	…
memory.txt	…
mono.txt	…
mutex-design.txt	…
nommu-mmap.txt	…
numastat.txt	…
oops-tracing.txt	…
padata.txt	…
parport-lowlevel.txt	…
parport.txt	…
pi-futex.txt	…
pinctrl.txt	…
pnp.txt	…
preempt-locking.txt	…
printk-formats.txt	…
prio_tree.txt	…
ramoops.txt	…
rbtree.txt	…
remoteproc.txt	…
rfkill.txt	…
robust-futex-ABI.txt	…
robust-futexes.txt	…
rpmsg.txt	…
rt-mutex-design.txt	…
rt-mutex.txt	…
rtc.txt	…
serial-console.txt	…
sgi-ioc4.txt	…
sgi-visws.txt	…
sparse.txt	…
spinlocks.txt	…
stable_api_nonsense.txt	…
stable_kernel_rules.txt	stable: Allow merging of backports for serious user-visible performance issues	2012-06-25 12:11:58 -07:00
static-keys.txt	…
svga.txt	…
sysfs-rules.txt	…
sysrq.txt	…
unaligned-memory-access.txt	…
unicode.txt	…
unshare.txt	…
vgaarbiter.txt	…
video-output.txt	…
vme_api.txt	…
volatile-considered-harmful.txt	…
workqueue.txt	workqueue: reimplement WQ_HIGHPRI using a separate worker_pool	2012-07-13 22:24:45 -07:00
xz.txt	…
zorro.txt	…