Re: [PATCH v2 0/2] Initialize backend memory objects in parallel

[Mark Kanda]

Ping.

Any comments?

Thanks/regards,
-Mark

On 1/22/24 9:32 AM, Mark Kanda wrote:
> v2:
> - require MADV_POPULATE_WRITE (simplify the implementation)
> - require prealloc context threads to ensure optimal thread placement
> - use machine phase 'initialized' to detremine when to allow parallel init
>
> QEMU initializes preallocated backend memory when parsing the corresponding
> objects from the command line. In certain scenarios, such as memory being
> preallocated across multiple numa nodes, this approach is not optimal due to
> the unnecessary serialization.
>
> This series addresses this issue by initializing the backend memory objects in
> parallel.
>
> Mark Kanda (2):
>    oslib-posix: refactor memory prealloc threads
>    oslib-posix: initialize backend memory objects in parallel
>
>   backends/hostmem.c     |   8 +++-
>   hw/virtio/virtio-mem.c |   4 +-
>   include/qemu/osdep.h   |  14 +++++-
>   system/vl.c            |   6 +++
>   util/oslib-posix.c     | 103 ++++++++++++++++++++++++++++-------------
>   util/oslib-win32.c     |   8 +++-
>   6 files changed, 103 insertions(+), 40 deletions(-)