[Xen-devel] [PATCH v8 00/13] Implement vcpu soft affinity for credit1

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

Hi everyone,

Here it comes v8 of the soft affinity series. This posting addresses all the
comments received during v7 review.

However, there are a few new stuff, which need reviewing or re-reviewing. In
fact, the most notable difference between v8 and v7 is that, I incorporated in
the series a patch from Wei's "JSON infrastructure" series, more specifically
the one about pushing the handling of vcpu pinning from xl, down to libxl.

As explained in the changelog of patch 10 ("libxl/xl: deprecate the
build_info->cpumap field") this has a number of advantages. First of all it
makes both the development (for both of us!) and the reviewing easier.
Moreover, it makes libxl code more straightforward (as compared to what it'd
look like whit mine and Wei's series applied one on top of the other), and it
also makes xl a bit more powerful (see patch 10 for details) when it comes to
specify vcpu hard and soft affinity... for free!! :-D

The only downside is that a few patches in the series are either new, or just
too different from previous versions, and hence I removed all the Reviewed and
Acked tags from there... I guess the review of this round should concentrate on
them.  I am talking about the following patches:

  08/13  xl: enable getting and setting soft affinity
  09/13  libxl/xl: push VCPU affinity pinning down to libxl
  10/13  libxl/xl: deprecate the build_info->cpumap field
  11/13  xl: move the vcpu affinity parsing in a function
  12/13  xl: enable for specifying soft-affinity in the config file


Patch 13 ("libxl: automatic NUMA placement affects soft affinity") is changed a
little bit, but not enough to justify killing the Ack-s... Feel free to re-look
at it, of course.

The other paches have, I think, all the proper Ack-s to be checked in already.

Patches are available here:

  git://xenbits.xen.org/people/dariof/xen.git numa/per-vcpu-affinity-v8

Thanks and Regards,
Dario

---

Dario Faggioli (12):
      xen: sched: rename v->cpu_affinity into v->cpu_hard_affinity
      xen: sched: introduce soft-affinity and use it instead d->node-affinity
      xen: derive NUMA node affinity from hard and soft CPU affinity
      xen/libxc: sched: DOMCTL_*vcpuaffinity works with hard and soft affinity
      libxc/libxl: bump library SONAMEs
      libxc: get and set soft and hard affinity
      libxl: get and set soft affinity
      xl: enable getting and setting soft affinity
      libxl/xl: deprecate the build_info->cpumap field
      xl: move the vcpu affinity parsing in a function
      xl: enable for specifying soft-affinity in the config file
      libxl: automatic NUMA placement affects soft affinity

Wei Liu (1):
      libxl/xl: push VCPU affinity pinning down to libxl


 docs/man/xl.cfg.pod.5                |   50 +++++--
 docs/man/xl.pod.1                    |   32 +++-
 docs/misc/xl-numa-placement.markdown |  162 +++++++++++++++-------
 tools/libxc/Makefile                 |    2 
 tools/libxc/xc_domain.c              |   72 ++++++----
 tools/libxc/xenctrl.h                |   55 +++++++-
 tools/libxl/Makefile                 |    2 
 tools/libxl/libxl.c                  |   97 ++++++++++++-
 tools/libxl/libxl.h                  |   55 +++++++-
 tools/libxl/libxl_create.c           |    6 -
 tools/libxl/libxl_dom.c              |   53 +++++++
 tools/libxl/libxl_types.idl          |   11 +-
 tools/libxl/libxl_utils.h            |   25 +++
 tools/libxl/xl_cmdimpl.c             |  246 ++++++++++++++++++----------------
 tools/libxl/xl_cmdtable.c            |    2 
 tools/ocaml/libs/xc/xenctrl_stubs.c  |    8 +
 tools/python/xen/lowlevel/xc/xc.c    |    6 +
 xen/arch/x86/traps.c                 |   13 +-
 xen/common/domain.c                  |   86 +++++++-----
 xen/common/domctl.c                  |  107 +++++++++++++--
 xen/common/keyhandler.c              |    4 -
 xen/common/sched_credit.c            |  161 +++++++++-------------
 xen/common/sched_sedf.c              |    2 
 xen/common/schedule.c                |   66 ++++++---
 xen/common/wait.c                    |   10 +
 xen/include/public/domctl.h          |   29 ++++
 xen/include/xen/sched-if.h           |    2 
 xen/include/xen/sched.h              |   15 +-
 28 files changed, 936 insertions(+), 443 deletions(-)

--
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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