[LITMUS^RT] Updates to LITMUS^RT, liblitmus, and feather-trace-tools

[Namhoon Kim]

Hi,

Sorry for the late response. We will test this version on our ARM machines.

-Namhoon

On Sun, Mar 20, 2016 at 3:17 PM, Björn Brandenburg <bbb at mpi-sws.org> wrote:

> Dear all,
>
> I’ve pushed more changes to LITMUS^RT and liblitmus. These patches add
> major new features.
>
> In particular, I’ve merged the basic reservation-based scheduling
> infrastructure that previously existed in the wip-reservations branch.
> However, the code has seen substantial changes since the earlier preview
> version. There’s a tutorial on how to work with the new reservations here:
>
>
> https://github.com/LITMUS-RT/liblitmus/blob/master/doc/howto-use-resctl.md
>
> A summary of all changes is provided at the end of the email.
>
> Again, please help with testing.
>
> > On 08 Mar 2016, at 17:26, Björn Brandenburg <bbb at mpi-sws.org> wrote:
> >
> > @UNC: can you please contribute to the testing effort, especially on ARM?
> >
>
> Is anyone at UNC still reading this email list? I haven’t heard anything
> at all…
>
> Thanks,
> Björn
>
>
> Here are the new patches in the kernel:
>
>         dbf173a Add partitioned reservation-based scheduler plugin (P-RES)
>         2a38056 Add basic generic reservation-based scheduling
> infrastructure
>         095f515 Add reservation configuration types to rt_param.h
>         8c9a840 LITMUS^RT syscall: expose sys_reservation_create() via
> ioctl()
>         c1e58e8 Add reservation creation API to plugin interface & syscalls
>         59a6e9e hrtimer integration: properly trace late-added timers
>         e9b22ab Hook into hrtimer to report large latencies
>         8d35f99 Add KConfig options for timer latency warnings
>         6a09acc Feather-Trace: cosmetic change in latency callback
>
>          include/linux/hrtimer.h                       |   3 +
>          include/litmus/ctrlpage.h                     |   6 +
>          include/litmus/reservations/alloc.h           |  15 +
>          include/litmus/reservations/budget-notifier.h |  50 +++
>          include/litmus/reservations/polling.h         |  19 +
>          include/litmus/reservations/reservation.h     | 223 ++++++++++
>          include/litmus/reservations/table-driven.h    |  23 +
>          include/litmus/rt_param.h                     |  41 ++
>          include/litmus/sched_plugin.h                 |   8 +
>          kernel/time/hrtimer.c                         |  41 +-
>          litmus/Kconfig                                |  24 +-
>          litmus/Makefile                               |   4 +
>          litmus/ctrldev.c                              |   6 +
>          litmus/litmus.c                               |  10 +
>          litmus/reservations/Makefile                  |   3 +
>          litmus/reservations/alloc.c                   | 143 +++++++
>          litmus/reservations/budget-notifier.c         |  26 ++
>          litmus/reservations/core.c                    | 392
> +++++++++++++++++
>          litmus/reservations/polling.c                 | 256 ++++++++++++
>          litmus/reservations/table-driven.c            | 269 ++++++++++++
>          litmus/sched_plugin.c                         |  13 +
>          litmus/sched_pres.c                           | 578
> ++++++++++++++++++++++++++
>          litmus/trace.c                                |   3 +-
>          23 files changed, 2152 insertions(+), 4 deletions(-)
>
>
> Changes to liblitmus:
>
>         f7aa7b6 Add documentation for resctl
>         e742799 Add -b (background cache-thrashing loop) option to rtspin
>         a409d6c Add memory thrashing option to rtspin
>         e2c555d Add -u (underrun) to rtspin
>         0d3feb8 Add -R (create sporadic reservation) flag to rtspin
>         13559d1 Add -R (create sporadic reservation) flag to rt_launch
>         be24daf resctl: support specifying open intervals [$start,$end)
>         3d2d58b resctl: support parsing priority values larger than 2^32
>         9dcbb55 resctl: default to max. priority for table-driven
> reservations
>         3015c39 Add resctrl, a tool for setting up reservations
>         626d8bd Add reservation_create() LITMUS^RT system call
>
>          .gitignore              |   7 ++
>          Makefile                |   5 +-
>          bin/resctl.c            | 256
> ++++++++++++++++++++++++++++++++++++++++++++++++
>          bin/rt_launch.c         |  30 +++++-
>          bin/rtspin.c            | 141 +++++++++++++++++++++++---
>          doc/howto-use-resctl.md | 144 +++++++++++++++++++++++++++
>          include/litmus.h        |   8 ++
>          src/syscalls.c          |   8 ++
>          8 files changed, 580 insertions(+), 19 deletions(-)
>
> _______________________________________________
> litmus-dev mailing list
> litmus-dev at lists.litmus-rt.org
> https://lists.litmus-rt.org/listinfo/litmus-dev
>
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