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

[Mark Kanda <mark.kanda@oracle.com>]

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(-)

-- 
2.39.3