Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1430728

[patch V3 00/22] timer: Refactor the timer wheel

Show all headers | View raw

This is the third version of the timer wheel rework series. The previous
versions can be found here:

V1:   http://lkml.kernel.org/r/20160613070440.950649741@linutronix.de
V2:   http://lkml.kernel.org/r/20160617121134.417319325@linutronix.de

The series is also available in git:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.timers

Changes vs. V2:

 - Removed the 1000Hz granularity reduction to 4ms. Eric explained that
   datacenter workloads require the granularity in the first level wheel.

 - Fixed the typo in tilepro. 

 - Converted sigtimedwait() to hrtimers

 - To avoid the cascading I extended the wheel by another level. This removes
   the rarely executed cascading code path, but increases the storage size for
   HZ>100 slightly. If the tiny folks care, there is an simple option to cut
   the storage size in half for the price of reduced granularity.

Thanks,

	tglx

----
 arch/x86/kernel/apic/x2apic_uv_x.c  |    4 
 arch/x86/kernel/cpu/mcheck/mce.c    |    4 
 block/genhd.c                       |    5 
 drivers/cpufreq/powernv-cpufreq.c   |    5 
 drivers/mmc/host/jz4740_mmc.c       |    2 
 drivers/net/ethernet/tile/tilepro.c |    4 
 drivers/power/bq27xxx_battery.c     |    5 
 drivers/tty/metag_da.c              |    4 
 drivers/tty/mips_ejtag_fdc.c        |    4 
 drivers/usb/host/ohci-hcd.c         |    1 
 drivers/usb/host/xhci.c             |    2 
 include/linux/list.h                |   10 
 include/linux/timer.h               |   34 -
 kernel/signal.c                     |   24 
 kernel/time/tick-internal.h         |    1 
 kernel/time/tick-sched.c            |   46 -
 kernel/time/timer.c                 | 1096 +++++++++++++++++++++---------------
 lib/random32.c                      |    1 
 net/ipv4/inet_connection_sock.c     |    7 
 net/ipv4/inet_timewait_sock.c       |    5 
 20 files changed, 734 insertions(+), 530 deletions(-)

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[patch V3 00/22] timer: Refactor the timer wheel Thomas Gleixner <tglx@linutronix.de> - 2016-06-24 16:50 +0200
  [patch V3 06/22] drivers/tty/metag_da: Initialize timer as pinned Thomas Gleixner <tglx@linutronix.de> - 2016-06-24 16:50 +0200
  [patch V3 02/22] x86/apic/uv: Initialize timer as pinned Thomas Gleixner <tglx@linutronix.de> - 2016-06-24 16:50 +0200
  Re: [patch V3 00/22] timer: Refactor the timer wheel Josh Triplett <josh@joshtriplett.org> - 2016-06-24 19:10 +0200
  Re: [patch V3 00/22] timer: Refactor the timer wheel "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-06-27 06:30 +0200
    Re: [patch V3 00/22] timer: Refactor the timer wheel "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-06-28 02:00 +0200

csiph-web