Re: [dpdk-dev] [RFC PATCH 0/7] add OSv support

[Bruce Richardson <bruce.richardson@intel.com>]

On Fri, Mar 13, 2015 at 06:05:41AM +0900, Takuya ASADA wrote:
> Hi DPDK developers,
> 
> I'd like to contribute a new EAL to support our open-sourced operating system called "OSv".
> It is a new operating system build from scratch for cloud computing, to run application faster with lower footprint on IaaS.
> Unlike general propose OS, it is a library OS designed to run single application per one instance, everything run in kernel mode, single memory space.
> It's not using Linux kernel but has compatibility with Linux application, not perfect but we already supported various applications such as Cassandra, memcached, Redis, etc.
> 
> In DPDK case, PMDs can access devices directly, without kernel driver help.
> At this point I haven't enough optimized performance of the EAL yet, but it has potential to get better performance than Linux with fewer resources.
> 
> OSv web site: http://osv.io
> USENIX ATC'14 paper: https://www.usenix.org/conference/atc14/technical-sessions/presentation/kivity

This sounds really interesting. Any chance of adding in a "Getting Started Guide"
with your patchset to make it easy for us to try out DPDK on OSv?

> 
> Takuya ASADA (7):
>   mk: support compiling C++ code
>   eal: Add extern C on eal_hugepages.h
>   eal: Add extern C on eal_thread.h
>   eal: Add extern C on eal_private.h
>   add OSv support
>   virtio: enable MSI-X on OSv
>   app/test: support OSv
> 
>  app/test/test_eal_flags.c                          |  34 +--
>  app/test/test_timer_perf.c                         |   2 +-
>  config/{common_linuxapp => common_osvapp}          |  20 +-
>  ...xapp-gcc => defconfig_x86_64-native-osvapp-gcc} |   2 +-
>  lib/librte_eal/Makefile                            |   2 +
>  lib/librte_eal/common/eal_hugepages.h              |   8 +
>  lib/librte_eal/common/eal_private.h                |   8 +
>  lib/librte_eal/common/eal_thread.h                 |   8 +
>  Makefile => lib/librte_eal/osvapp/Makefile         |   5 +-
>  lib/librte_eal/osvapp/eal/Makefile                 | 115 ++++++++
>  lib/librte_eal/{linuxapp => osvapp}/eal/eal.c      | 123 +-------
>  .../{linuxapp => osvapp}/eal/eal_alarm.c           |   0
>  .../{linuxapp => osvapp}/eal/eal_debug.c           |   0
>  lib/librte_eal/osvapp/eal/eal_hugepage_info.cc     |  63 +++++
>  .../{bsdapp => osvapp}/eal/eal_interrupts.c        |   0
>  .../eal/eal_lcore.c => osvapp/eal/eal_lcore.cc}    |  53 ++--
>  lib/librte_eal/{bsdapp => osvapp}/eal/eal_log.c    |   0
>  lib/librte_eal/osvapp/eal/eal_memory.cc            | 148 ++++++++++
>  lib/librte_eal/osvapp/eal/eal_pci.cc               | 311 +++++++++++++++++++++
>  .../{linuxapp => osvapp}/eal/eal_thread.c          |   0
>  lib/librte_eal/osvapp/eal/eal_timer.c              | 121 ++++++++
>  .../eal/include/exec-env/rte_interrupts.h          |   0
>  lib/librte_pmd_virtio/virtio_ethdev.c              |  15 +-
>  mk/exec-env/{linuxapp => osvapp}/rte.app.mk        |   0
>  mk/exec-env/{linuxapp => osvapp}/rte.vars.mk       |   6 +-
>  mk/internal/rte.compile-pre.mk                     |  41 ++-
>  mk/target/generic/rte.vars.mk                      |   4 +
>  mk/toolchain/gcc/rte.vars.mk                       |   5 +-
>  28 files changed, 907 insertions(+), 187 deletions(-)
>  copy config/{common_linuxapp => common_osvapp} (97%)
>  copy config/{defconfig_x86_64-native-linuxapp-gcc => defconfig_x86_64-native-osvapp-gcc} (98%)
>  copy Makefile => lib/librte_eal/osvapp/Makefile (93%)
>  create mode 100644 lib/librte_eal/osvapp/eal/Makefile
>  copy lib/librte_eal/{linuxapp => osvapp}/eal/eal.c (87%)
>  copy lib/librte_eal/{linuxapp => osvapp}/eal/eal_alarm.c (100%)
>  copy lib/librte_eal/{linuxapp => osvapp}/eal/eal_debug.c (100%)
>  create mode 100644 lib/librte_eal/osvapp/eal/eal_hugepage_info.cc
>  copy lib/librte_eal/{bsdapp => osvapp}/eal/eal_interrupts.c (100%)
>  copy lib/librte_eal/{bsdapp/eal/eal_lcore.c => osvapp/eal/eal_lcore.cc} (80%)
>  copy lib/librte_eal/{bsdapp => osvapp}/eal/eal_log.c (100%)
>  create mode 100644 lib/librte_eal/osvapp/eal/eal_memory.cc
>  create mode 100644 lib/librte_eal/osvapp/eal/eal_pci.cc
>  copy lib/librte_eal/{linuxapp => osvapp}/eal/eal_thread.c (100%)
>  create mode 100644 lib/librte_eal/osvapp/eal/eal_timer.c
>  copy lib/librte_eal/{bsdapp => osvapp}/eal/include/exec-env/rte_interrupts.h (100%)
>  copy mk/exec-env/{linuxapp => osvapp}/rte.app.mk (100%)
>  copy mk/exec-env/{linuxapp => osvapp}/rte.vars.mk (95%)
> 
> -- 
> 2.1.0
>