• Linus Torvalds's avatar
    Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d4e79615
    Linus Torvalds authored
    Pull scheduler updates from Ingo Molnar:
     "The main changes in this cycle are:
    
       - Make schedstats a runtime tunable (disabled by default) and
         optimize it via static keys.
    
         As most distributions enable CONFIG_SCHEDSTATS=y due to its
         instrumentation value, this is a nice performance enhancement.
         (Mel Gorman)
    
       - Implement 'simple waitqueues' (swait): these are just pure
         waitqueues without any of the more complex features of full-blown
         waitqueues (callbacks, wake flags, wake keys, etc.).  Simple
         waitqueues have less memory overhead and are faster.
    
         Use simple waitqueues in the RCU code (in 4 different places) and
         for handling KVM vCPU wakeups.
    
         (Peter Zijlstra, Daniel Wagner, Thomas Gleixner, Paul Gortmaker,
         Marcelo Tosatti)
    
       - sched/numa enhancements (Rik van Riel)
    
       - NOHZ performance enhancements (Rik van Riel)
    
       - Various sched/deadline enhancements (Steven Rostedt)
    
       - Various fixes (Peter Zijlstra)
    
       - ... and a number of other fixes, cleanups and smaller enhancements"
    
    * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (29 commits)
      sched/cputime: Fix steal_account_process_tick() to always return jiffies
      sched/deadline: Remove dl_new from struct sched_dl_entity
      Revert "kbuild: Add option to turn incompatible pointer check into error"
      sched/deadline: Remove superfluous call to switched_to_dl()
      sched/debug: Fix preempt_disable_ip recording for preempt_disable()
      sched, time: Switch VIRT_CPU_ACCOUNTING_GEN to jiffy granularity
      time, acct: Drop irq save & restore from __acct_update_integrals()
      acct, time: Change indentation in __acct_update_integrals()
      sched, time: Remove non-power-of-two divides from __acct_update_integrals()
      sched/rt: Kick RT bandwidth timer immediately on start up
      sched/debug: Add deadline scheduler bandwidth ratio to /proc/sched_debug
      sched/debug: Move sched_domain_sysctl to debug.c
      sched/debug: Move the /sys/kernel/debug/sched_features file setup into debug.c
      sched/rt: Fix PI handling vs. sched_setscheduler()
      sched/core: Remove duplicated sched_group_set_shares() prototype
      sched/fair: Consolidate nohz CPU load update code
      sched/fair: Avoid using decay_load_missed() with a negative value
      sched/deadline: Always calculate end of period on sched_yield()
      sched/cgroup: Fix cgroup entity load tracking tear-down
      rcu: Use simple wait queues where possible in rcutree
      ...
    d4e79615
kernel-parameters.txt 151 KB