[RFC v2 0/2] virtio_balloon: auto-ballooning support

[Luiz Capitulino <lcapitulino@redhat.com>]

Hi,

This series is a respin of automatic ballooning support I started
working on last year. Patch 2/2 contains all relevant technical
details and performance measurements results.

This is in RFC state because it's a work in progress.

Here's some information if you want to try automatic ballooning:

 1. You'll need 3.9+ for the host kernel
 2. Apply this series for the guest kernel
 3. Grab the QEMU bits from:
    git://repo.or.cz/qemu/qmp-unstable.git balloon/auto-ballooning/memcg/rfc
 4. Enable the balloon device in qemu with:
    -device virtio-balloon-pci,auto-balloon=true
 5. Balloon the guest memory down, say from 1G to 256MB
 6. Generate some pressure in the guest, say a kernel build with -j16

Any feedback is appreciated!

Luiz Capitulino (2):
  virtio_balloon: move balloon_lock mutex to callers
  virtio_balloon: auto-ballooning support

 drivers/virtio/virtio_balloon.c     | 63 ++++++++++++++++++++++++++++++++++---
 include/uapi/linux/virtio_balloon.h |  1 +
 2 files changed, 60 insertions(+), 4 deletions(-)

-- 
1.8.1.4

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