Re: [PATCH 00/14] sched: SCHED_DEADLINE v8

[Juri Lelli <juri.lelli@gmail.com>]

Ok,

I forgot a space after the last Cc with git send-mail, sorry about that. Here
the Cc list is right.

Thanks,

- Juri

On 10/14/2013 12:43 PM, Juri Lelli wrote:
> Hello everyone,
> 
> here we go with a new version of the SCHED_DEADLINE patchset (v8). I know that
> it has been a while since I released last version [1], but I thought not to
> spam the mailing list with simple updates. Well... this IS basically an update
> to 3.12-rc5, but it comes right before the next Kernel Summit and Real Time
> Linux Workshop and, since I'll be present at both events, it is probably time
> to fire-up the discussion again.
> 
> Moreover, interesting news:
> 
>  - a better mechanism for coordinating mutually exclusive access to critical
>    sections is coming soon (we wrote a paper about it for RTLWS15 [2]);
>  - the patchset is now available in the 3.4 and 3.10 Yocto kernels [3] (thanks
>    a lot for this to Bruce Ashfield and Insop Song); even though it is hard to
>    say how many new users we got with this, we can say that having
>    SCHED_DEADLINE in Yocto provides availabily to OSVs like Wind River and
>    others;
>  - a european project has started (JUNIPER [4]) for which we will provide
>    kernel level support based on this patchset (and we will soon have a real
>    use case for it! yayyy! :)).
> 
> The development is taking place at:
>    https://github.com/jlelli/sched-deadline
> 
> branch: sched-dl-V8 (this patchset on top of tip/master).
> 
> Check the repositories frequently if you're interested, and feel free to
> e-mail me for any issue you run into.
> 
> Test applications:
>   https://github.com/gbagnoli/rt-app 
>   https://github.com/jlelli/schedtool-dl
> 
> Development mailing list: linux-dl; you can subscribe from here:
> http://feanor.sssup.it/mailman/listinfo/linux-dl
> or via e-mail (send a message to linux-dl-request@retis.sssup.it with
> just the word `help' as subject or in the body to receive info).
> 
> The code was being jointly developed by ReTiS Lab (http://retis.sssup.it)
> and Evidence S.r.l (http://www.evidence.eu.com) in the context of the ACTORS
> EU-funded project (http://www.actors-project.eu) and the S(o)OS EU-funded
> project (http://www.soos-project.eu/). Development is now supported by the
> JUNIPER EU-funded project [4].
> 
> As usual, any kind of feedback is welcome and appreciated.
> 
> Thanks in advice and regards,
> 
>  - Juri
> 
> [1] http://lwn.net/Articles/376502, http://lwn.net/Articles/353797,
>     http://lwn.net/Articles/412410, http://lwn.net/Articles/490944,
>     http://lwn.net/Articles/498472, http://lwn.net/Articles/521091,
>     http://lwn.net/Articles/537388
> 
> [2] https://www.osadl.org/?id=1743
> 
> [3] https://www.yoctoproject.org/
> 
> [4] http://www.juniper-project.org/page/overview
> 
> Dario Faggioli (9):
>   sched: add sched_class->task_dead.
>   sched: add extended scheduling interface.
>   sched: SCHED_DEADLINE structures & implementation.
>   sched: SCHED_DEADLINE avg_update accounting.
>   sched: add schedstats for -deadline tasks.
>   sched: add latency tracing for -deadline tasks.
>   sched: drafted deadline inheritance logic.
>   sched: add bandwidth management for sched_dl.
>   sched: add sched_dl documentation.
> 
> Harald Gustafsson (1):
>   sched: add period support for -deadline tasks.
> 
> Juri Lelli (3):
>   sched: SCHED_DEADLINE SMP-related data structures & logic.
>   sched: make dl_bw a sub-quota of rt_bw
>   sched: speed up -dl pushes with a push-heap.
> 
> Peter Zijlstra (1):
>   rtmutex: turn the plist into an rb-tree.
> 
>  Documentation/scheduler/sched-deadline.txt |  196 ++++
>  arch/arm/include/asm/unistd.h              |    2 +-
>  arch/arm/include/uapi/asm/unistd.h         |    3 +
>  arch/arm/kernel/calls.S                    |    3 +
>  arch/x86/syscalls/syscall_32.tbl           |    3 +
>  arch/x86/syscalls/syscall_64.tbl           |    3 +
>  include/linux/init_task.h                  |   10 +
>  include/linux/rtmutex.h                    |   18 +-
>  include/linux/sched.h                      |  122 +-
>  include/linux/sched/deadline.h             |   24 +
>  include/linux/sched/rt.h                   |    3 +-
>  include/linux/sched/sysctl.h               |   11 +
>  include/linux/syscalls.h                   |    7 +
>  include/uapi/linux/sched.h                 |    1 +
>  kernel/fork.c                              |    8 +-
>  kernel/futex.c                             |    2 +
>  kernel/hrtimer.c                           |    3 +-
>  kernel/rtmutex-debug.c                     |    8 +-
>  kernel/rtmutex.c                           |  164 ++-
>  kernel/rtmutex_common.h                    |   22 +-
>  kernel/sched/Makefile                      |    4 +-
>  kernel/sched/core.c                        |  660 ++++++++++-
>  kernel/sched/cpudeadline.c                 |  216 ++++
>  kernel/sched/cpudeadline.h                 |   33 +
>  kernel/sched/deadline.c                    | 1658 ++++++++++++++++++++++++++++
>  kernel/sched/debug.c                       |   46 +
>  kernel/sched/rt.c                          |    2 +-
>  kernel/sched/sched.h                       |  150 +++
>  kernel/sched/stop_task.c                   |    2 +-
>  kernel/sysctl.c                            |    7 +
>  kernel/trace/trace_sched_wakeup.c          |   45 +-
>  kernel/trace/trace_selftest.c              |   28 +-
>  32 files changed, 3343 insertions(+), 121 deletions(-)
>  create mode 100644 Documentation/scheduler/sched-deadline.txt
>  create mode 100644 include/linux/sched/deadline.h
>  create mode 100644 kernel/sched/cpudeadline.c
>  create mode 100644 kernel/sched/cpudeadline.h
>  create mode 100644 kernel/sched/deadline.c
>