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Ingo Molnar 82f67cd9fc [PATCH] Add debugging feature /proc/timer_stat 
Add /proc/timer_stats support: debugging feature to profile timer expiration.
Both the starting site, process/PID and the expiration function is captured.
This allows the quick identification of timer event sources in a system.

Sample output:

# echo 1 > /proc/timer_stats
# cat /proc/timer_stats
Timer Stats Version: v0.1
Sample period: 4.010 s
  24,     0 swapper          hrtimer_stop_sched_tick (hrtimer_sched_tick)
  11,     0 swapper          sk_reset_timer (tcp_delack_timer)
   6,     0 swapper          hrtimer_stop_sched_tick (hrtimer_sched_tick)
   2,     1 swapper          queue_delayed_work_on (delayed_work_timer_fn)
  17,     0 swapper          hrtimer_restart_sched_tick (hrtimer_sched_tick)
   2,     1 swapper          queue_delayed_work_on (delayed_work_timer_fn)
   4,  2050 pcscd            do_nanosleep (hrtimer_wakeup)
   5,  4179 sshd             sk_reset_timer (tcp_write_timer)
   4,  2248 yum-updatesd     schedule_timeout (process_timeout)
  18,     0 swapper          hrtimer_restart_sched_tick (hrtimer_sched_tick)
   3,     0 swapper          sk_reset_timer (tcp_delack_timer)
   1,     1 swapper          neigh_table_init_no_netlink (neigh_periodic_timer)
   2,     1 swapper          e1000_up (e1000_watchdog)
   1,     1 init             schedule_timeout (process_timeout)
100 total events, 25.24 events/sec

[ cleanups and hrtimers support from Thomas Gleixner <tglx@linutronix.de> ]
[bunk@stusta.de: nr_entries can become static]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2007-02-16 08:13:59 -08:00
..
ABI [PATCH] pktcdvd: cleanup 2007-02-11 10:51:28 -08:00
DocBook [PATCH] fix DocBook build 2007-02-11 11:18:07 -08:00
RCU [PATCH] rcu: add sched torture type to rcutorture 2006-10-04 07:55:31 -07:00
accounting [PATCH] io-accounting: add to getdelays 2006-12-10 09:55:42 -08:00
aoe Fix typos in Documentation/: 'D'-'E' 2006-10-03 22:47:42 +02:00
arm [ARM] 4071/1: S3C24XX: Documentation update 2006-12-30 17:05:07 +00:00
auxdisplay [PATCH] drivers: add LCD support 2007-02-11 10:51:24 -08:00
block [PATCH] block: document io scheduler allow_merge_fn hook 2006-12-20 11:06:15 +01:00
cdrom [PATCH] pktcdvd: cleanup 2007-02-11 10:51:28 -08:00
connector [CONNECTOR]: Add userspace example code into Documentation/connector/ 2006-08-26 18:42:00 -07:00
console [PATCH] VT binding: Update documentation 2006-06-26 09:58:33 -07:00
cpu-freq Merge ../linus 2006-12-12 17:41:41 -05:00
cris Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
crypto [CRYPTO] doc: added the developer of Camellia cipher 2007-02-07 09:21:05 +11:00
device-mapper [PATCH] Fix dm-snapshot tutorial in Documentation 2005-11-07 07:53:54 -08:00
driver-model devres: device resource management 2007-02-09 17:39:36 -05:00
drivers/edac [PATCH] EDAC: Add memory scrubbing controls API to core 2007-02-12 09:48:32 -08:00
dvb V4L/DVB (4813): Added information about Technisat Sky2Pc cards 2006-12-10 08:51:18 -02:00
early-userspace earlyuserspace/README: fix homonym err 2005-11-08 17:16:50 +01:00
fault-injection [PATCH] fault-injection: Correct, disambiguate, and reformat documentation 2006-12-08 08:29:03 -08:00
fb [PATCH] fbdev driver for S3 Trio/Virge 2007-02-12 09:48:41 -08:00
filesystems [PATCH] ufs2 write: mount as rw 2007-02-12 09:48:40 -08:00
firmware_class [PATCH] drivers/base/firmware_class.c: cleanups 2006-05-21 12:59:19 -07:00
fujitsu/frv Fix typos in /Documentation : Misc 2006-11-30 05:21:10 +01:00
hrtimer [PATCH] Add debugging feature /proc/timer_stat 2007-02-16 08:13:59 -08:00
hrtimers [PATCH] hrtimers: move and add documentation 2007-02-16 08:13:58 -08:00
hwmon hwmon/w83793: Ignore disabled temperature channels 2007-01-18 22:14:24 +01:00
i2c i2c-parport: Add support for One For All remote JP1 interface 2007-02-13 22:09:02 +01:00
i2o spelling: s/retreive/retrieve/ 2006-01-10 00:10:13 +01:00
i386 [PATCH] Boot loader ID for Gujin 2007-01-26 14:59:48 -08:00
ia64 Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
infiniband IB/ipoib: Remove broken link from Kconfig and documentation 2006-08-03 10:48:31 -07:00
input Fix typos in /Documentation : Misc 2006-11-30 05:21:10 +01:00
ioctl [PATCH] Document how to decode an IOCTL number 2006-12-10 09:55:40 -08:00
isdn [PATCH] drivers/isdn/gigaset: new M101 driver (v2) 2007-02-12 09:48:30 -08:00
kbuild kconfig: Standardize "depends" -> "depends on" in Kconfig files 2006-12-12 20:04:19 +01:00
kdump [PATCH] kexec: fix references to init in documentation for kexec 2007-02-12 09:48:29 -08:00
m68k Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
mips [MIPS] Fixup migration to GENERIC_TIME 2006-10-31 20:13:23 +00:00
netlabel [NetLabel]: documentation 2006-09-22 14:53:31 -07:00
networking [DCCP]: Update documentation 2006-12-11 14:34:38 -08:00
parisc Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pcmcia [PATCH] pcmcia: expose tool in pcmcia/Documentation/pcmcia/ 2006-06-30 22:09:10 +02:00
power [PATCH] s2ram debugging documentation 2006-12-07 08:39:28 -08:00
powerpc [POWERPC] mpc5200 device tree bindings refinement 2007-02-13 15:35:53 +11:00
s390 [S390] Fix register usage description. 2007-02-05 21:17:34 +01:00
scsi Merge branch 'linus' 2007-01-31 11:24:00 -06:00
serial [SERIAL] Update parity handling documentation 2006-06-02 17:47:26 +01:00
sh Fix typos in Documentation/: 'H'-'M' 2006-10-03 22:50:39 +02:00
sound [ALSA] ASoC documentation updates 2007-02-09 09:04:04 +01:00
sparc Fix typos in Documentation/: 'Q'-'R' 2006-10-03 22:54:15 +02:00
spi [PATCH] spi: documentation does not need to set driver's bus_type field 2007-02-12 09:48:30 -08:00
sysctl [PATCH] x86: add sysctl for kstack_depth_to_print 2006-12-07 02:14:11 +01:00
telephony Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
uml Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
usb USB: add binary API to usbmon 2007-02-07 15:44:34 -08:00
video4linux V4L/DVB (4887): Remove the broken VIDEO_ZR36120 driver 2006-12-10 09:05:23 -02:00
vm Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
w1 [PATCH] w1: Userspace communication protocol over connector. 2006-06-22 11:22:50 -07:00
watchdog Fix typos in /Documentation : 'T'' 2006-11-30 04:55:36 +01:00
x86_64 [PATCH] x86-64: Allow to run a program when a machine check event is detected 2007-02-13 13:26:23 +01:00
00-INDEX Remove long-unmaintained ftape driver subsystem. 2006-12-03 22:22:41 -05:00
BUG-HUNTING Documentation: Update to BUG-HUNTING 2006-03-22 00:37:42 +01:00
Changes Fix typos in doc and comments 2006-11-30 05:32:19 +01:00
CodingStyle [PATCH] Add a new section to CodingStyle, promoting include/linux/kernel.h 2006-12-22 08:55:49 -08:00
DMA-API.txt [PATCH] Pass struct dev pointer to dma_cache_sync() 2006-12-07 08:39:41 -08:00
DMA-ISA-LPC.txt Fix typos in /Documentation : 'T'' 2006-11-30 04:55:36 +01:00
DMA-mapping.txt Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
HOWTO HOWTO: Add a reference to Harbison and Steele 2007-02-07 10:37:13 -08:00
IO-mapping.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
IPMI.txt [PATCH] IPMI: system interface hotplug 2006-12-07 08:39:47 -08:00
IRQ-affinity.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
IRQ.txt [PATCH] genirq: irq: document what an IRQ is 2006-06-29 10:26:25 -07:00
MSI-HOWTO.txt Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
ManagementStyle Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
PCIEBUS-HOWTO.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
README.DAC960 [PATCH] devfs: Last little devfs cleanups throughout the kernel tree. 2006-06-26 12:25:09 -07:00
README.cycladesZ Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
SAK.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
SecurityBugs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
SubmitChecklist [PATCH] SubmitChecklist update 2007-01-23 07:52:06 -08:00
SubmittingDrivers [PATCH] Documentation/SubmittingDrivers: minor update 2006-09-29 09:18:25 -07:00
SubmittingPatches Change Linus' email address too 2007-01-23 14:22:35 -08:00
VGA-softcursor.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
acpi-hotkey.txt Fix minor documentation typo 2006-04-01 01:49:22 +02:00
applying-patches.txt [PATCH] Docs update: typos, corrections and additions to applying-patches.txt 2006-01-10 08:01:54 -08:00
atomic_ops.txt Spelling fixes for Documentation/atomic_ops.txt 2006-06-26 18:27:35 +02:00
basic_profiling.txt [PATCH] oprofile: report anonymous region samples 2005-06-24 00:06:27 -07:00
binfmt_misc.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cachetlb.txt [ARM] pass vma for flush_anon_page() 2007-01-08 19:49:54 +00:00
cciss.txt Fix typos in Documentation/: 'D'-'E' 2006-10-03 22:47:42 +02:00
cli-sti-removal.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
computone.txt remove mentionings of devfs in documentation 2006-10-03 22:17:48 +02:00
cpqarray.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cpu-hotplug.txt Fix typos in /Documentation : Misc 2006-11-30 05:21:10 +01:00
cpusets.txt [PATCH] cpuset: top_cpuset tracks hotplug changes to node_online_map 2006-09-29 09:18:21 -07:00
cputopology.txt Fix typos in Documentation/: 'D'-'E' 2006-10-03 22:47:42 +02:00
dcdbas.txt [PATCH] dcdbas: add Dell Systems Management Base Driver with sysfs support 2005-09-07 16:57:27 -07:00
debugging-modules.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dell_rbu.txt Fix typos in Documentation/: 'N'-'P' 2006-10-03 22:52:05 +02:00
devices.txt [PATCH] New updated devices.txt - LANANA 2006-12-07 08:39:45 -08:00
digiepca.txt typo fixes: aquire -> acquire 2006-06-30 18:23:04 +02:00
dnotify.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dontdiff dontdiff: add utsrelease.h 2006-09-25 13:33:04 +02:00
ecryptfs.txt [PATCH] ecryptfs: fs/Makefile and fs/Kconfig 2006-10-04 07:55:24 -07:00
eisa.txt Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
exception.txt Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
feature-removal-schedule.txt Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2007-02-11 11:50:24 -08:00
floppy.txt [PATCH] kernel Doc/ URL corrections 2005-11-22 09:14:30 -08:00
gpio.txt [PATCH] GPIO core documentation 2007-02-16 08:13:55 -08:00
hayes-esp.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
highuid.txt Fix "can not" in Documentation and Kconfig 2006-10-03 22:53:09 +02:00
hpet.txt Documentation/hpet.txt typo 2006-01-15 02:09:54 +01:00
hw_random.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ibm-acpi.txt ACPI: ibm-acpi: implement fan watchdog command 2006-12-07 01:38:44 -05:00
ide.txt Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
initrd.txt [PATCH] documentation: Documentation/initrd.txt 2006-07-31 13:28:44 -07:00
io_ordering.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ioctl-number.txt [PATCH] Doc: isicom, remove reserved ioctl-number 2007-02-11 10:51:29 -08:00
iostats.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irqflags-tracing.txt [PATCH] lockdep: irqtrace subsystem, docs 2006-07-03 15:27:03 -07:00
isapnp.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
java.txt Fix "can not" in Documentation and Kconfig 2006-10-03 22:53:09 +02:00
kernel-doc-nano-HOWTO.txt [PATCH] Discuss a couple common errors in kernel-doc usage. 2007-02-11 10:51:32 -08:00
kernel-docs.txt remove mentionings of devfs in documentation 2006-10-03 22:17:48 +02:00
kernel-parameters.txt [PATCH] hrtimers: add high resolution timer support 2007-02-16 08:13:59 -08:00
keys-request-key.txt [PATCH] Keys: Allow in-kernel key requestor to pass auxiliary data to upcaller 2006-06-29 10:26:20 -07:00
keys.txt Fix typos in /Documentation : Misc 2006-11-30 05:21:10 +01:00
kobject.txt Fix typos in Documentation/: 'D'-'E' 2006-10-03 22:47:42 +02:00
kprobes.txt [PATCH] Don't give bad kprobes example aka ") < 0))" typo 2006-11-16 11:43:38 -08:00
kref.txt [PATCH] kref: add link to original documentation to the kref documentation. 2005-04-18 21:57:30 -07:00
laptop-mode.txt Fix typos in /Documentation : Misc 2006-11-30 05:21:10 +01:00
ldm.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
leds-class.txt [PATCH] LED: class documentation 2006-03-31 12:18:56 -08:00
local_ops.txt [PATCH] local_t: Documentation 2007-02-11 10:51:32 -08:00
lockdep-design.txt [PATCH] fix lockdep-design.txt 2006-10-11 11:14:24 -07:00
locks.txt [PATCH] Docs update: remove obsolete patch from locks.txt 2006-01-10 08:01:54 -08:00
logo.gif Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
logo.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
magic-number.txt [PATCH] mm: rename kmem_cache_s to kmem_cache 2005-11-07 07:53:24 -08:00
mandatory.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mca.txt Fix some typos in Documentation/: 'A' 2006-10-03 22:45:33 +02:00
md.txt Fix typos in Documentation/: 'Q'-'R' 2006-10-03 22:54:15 +02:00
memory-barriers.txt Fix typos in /Documentation : 'T'' 2006-11-30 04:55:36 +01:00
memory.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mono.txt Fix "can not" in Documentation and Kconfig 2006-10-03 22:53:09 +02:00
moxa-smartio Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mtrr.txt [PATCH] Doc: fix mtrr userspace programs to build cleanly 2006-04-11 06:18:44 -07:00
mutex-design.txt [PATCH] mutex subsystem, documentation 2006-01-09 15:59:20 -08:00
nbd.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nfsroot.txt [PATCH] fix the defaults mentioned in Documentation/nfsroot.txt 2007-02-12 09:48:28 -08:00
nmi_watchdog.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nommu-mmap.txt [PATCH] NOMMU: Make futexes work under NOMMU conditions 2006-09-27 08:26:15 -07:00
numastat.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
oops-tracing.txt [PATCH] doc: refer to kdump in oops-tracing.txt 2006-01-11 18:42:10 -08:00
paride.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
parport-lowlevel.txt [PATCH] parport: fix documentation 2006-02-03 08:32:06 -08:00
parport.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci-error-recovery.txt Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
pci.txt PCI: rework Documentation/pci.txt 2007-01-22 12:00:54 -08:00
pcieaer-howto.txt PCI-Express AER implemetation: aer howto document 2006-09-26 17:43:52 -07:00
pi-futex.txt fix a typo in Documentation/pi-futex.txt 2006-10-03 23:39:02 +02:00
pm.txt Fix "can not" in Documentation and Kconfig 2006-10-03 22:53:09 +02:00
pnp.txt Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
preempt-locking.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
prio_tree.txt Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
ramdisk.txt [PATCH] Update ramdisk documentation 2006-07-14 21:53:53 -07:00
rbtree.txt [PATCH] Documentation/rbtree.txt 2007-02-11 10:51:35 -08:00
riscom8.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
robust-futex-ABI.txt Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00
robust-futexes.txt Fix typos in /Documentation : Misc 2006-11-30 05:21:10 +01:00
rocket.txt Fix typos in Documentation/: 'S' 2006-10-03 22:55:17 +02:00
rpc-cache.txt Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
rt-mutex-design.txt [PATCH] typo fixes for rt-mutex-design.txt 2006-10-01 00:39:24 -07:00
rt-mutex.txt [PATCH] pi-futex: rt mutex docs 2006-06-27 17:32:47 -07:00
rtc.txt [PATCH] some rtc documentation updates 2007-02-11 11:18:06 -08:00
sched-arch.txt [PATCH] sched: resched and cpu_idle rework 2005-11-09 07:56:33 -08:00
sched-coding.txt Fix typos in Documentation/: 'H'-'M' 2006-10-03 22:50:39 +02:00
sched-design.txt Fix typos in Documentation/: 'H'-'M' 2006-10-03 22:50:39 +02:00
sched-domains.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sched-stats.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
serial-console.txt [PATCH] doc: more serial-console info 2006-03-25 08:23:00 -08:00
sgi-ioc4.txt [PATCH] ioc4: Core driver rewrite 2005-06-21 18:46:32 -07:00
sgi-visws.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sharedsubtree.txt Fix typos in /Documentation : 'T'' 2006-11-30 04:55:36 +01:00
smart-config.txt kbuild: remove checkconfig.pl 2006-02-19 09:51:22 +01:00
smp.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sonypi.txt [PATCH] sonypi SPIC initialisation fix 2005-09-07 16:57:24 -07:00
sparse.txt kbuild: clarify "make C=" build option 2006-09-25 10:10:56 +02:00
specialix.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
spinlocks.txt fix rwlock usage example 2006-03-22 00:19:39 +01:00
stable_api_nonsense.txt [PATCH] i386: always enable regparm 2006-12-07 02:14:12 +01:00
stable_kernel_rules.txt Fix typos in /Documentation : Misc 2006-11-30 05:21:10 +01:00
stallion.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
svga.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sx.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sysrq.txt [PATCH] sysrq: alphabetize command keys doc 2007-02-11 10:51:32 -08:00
time_interpolators.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tipar.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tty.txt [PATCH] Update to Documentation/tty.txt on line disciplines 2006-12-30 10:55:55 -08:00
unicode.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unshare.txt Documentation: remove duplicated words 2006-10-03 22:57:56 +02:00
video-output.txt output: Add output class document 2006-12-20 01:46:58 -05:00
voyager.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xterm-linux.xpm Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
zorro.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00

README.cycladesZ 

The Cyclades-Z must have firmware loaded onto the card before it will
operate.  This operation should be performed during system startup,

The firmware, loader program and the latest device driver code are
available from Cyclades at
    ftp://ftp.cyclades.com/pub/cyclades/cyclades-z/linux/