xemu/hw/virtio
Yangming e919402b9e virtio-balloon: optimize the virtio-balloon on the ARM platform
Optimize the virtio-balloon feature on the ARM platform by adding
a variable to keep track of the current hot-plugged pc-dimm size,
instead of traversing the virtual machine's memory modules to count
the current RAM size during the balloon inflation or deflation
process. This variable can be updated only when plugging or unplugging
the device, which will result in an increase of approximately 60%
efficiency of balloon process on the ARM platform.

We tested the total amount of time required for the balloon inflation process on ARM:
inflate the balloon to 64GB of a 128GB guest under stress.
Before: 102 seconds
After: 42 seconds

Signed-off-by: Qi Xi <xiqi2@huawei.com>
Signed-off-by: Ming Yang yangming73@huawei.com
Message-Id: <e13bc78f96774bfab4576814c293aa52@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
2023-04-21 04:25:52 -04:00
..
Kconfig vdpa: add vdpa-dev support 2022-12-21 06:35:28 -05:00
meson.build virtio: Move HMP commands from monitor/ to hw/virtio/ 2023-02-04 07:56:54 +01:00
trace-events vdpa: add vhost_vdpa_suspend 2023-03-07 12:38:59 -05:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vdpa-dev-pci.c vdpa: add vdpa-dev-pci support 2022-12-21 06:35:28 -05:00
vdpa-dev.c vdpa-dev: get iova range explicitly 2023-01-08 01:54:22 -05:00
vhost-backend.c vhost: add method vhost_set_vring_err 2022-06-27 18:53:18 -04:00
vhost-iova-tree.c util: accept iova_tree_remove_parameter by value 2022-09-02 10:22:39 +08:00
vhost-iova-tree.h util: accept iova_tree_remove_parameter by value 2022-09-02 10:22:39 +08:00
vhost-scsi-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-shadow-virtqueue.c vdpa: rewind at get_base, not set_base 2023-03-07 12:38:59 -05:00
vhost-shadow-virtqueue.h vhost: move iova_tree set to vhost_svq_start 2022-12-21 06:35:28 -05:00
vhost-stub.c vhost-user: simplify vhost_user_init/vhost_user_cleanup 2019-03-12 21:22:31 -04:00
vhost-user-blk-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-fs-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-fs.c vhost-user-fs: Back up vqs before cleaning up vhost_dev 2023-02-09 10:21:11 -05:00
vhost-user-gpio-pci.c hw/virtio: add vhost-user-gpio-pci boilerplate 2022-10-07 09:41:51 -04:00
vhost-user-gpio.c vhost-user-gpio: Configure vhost_dev when connecting 2023-03-02 03:10:47 -05:00
vhost-user-i2c-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-i2c.c vhost-user-i2c: Back up vqs before cleaning up vhost_dev 2023-03-02 03:10:47 -05:00
vhost-user-input-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-rng-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-rng.c vhost-user-rng: Back up vqs before cleaning up vhost_dev 2023-03-02 03:10:47 -05:00
vhost-user-scsi-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-vsock-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-vsock.c hw/virtio: introduce virtio_device_should_start 2022-11-07 14:08:18 -05:00
vhost-user.c hw/virtio/vhost-user: avoid using unitialized errp 2023-03-07 19:51:07 -05:00
vhost-vdpa.c vdpa: return VHOST_F_LOG_ALL in vhost-vdpa devices 2023-03-07 12:38:59 -05:00
vhost-vsock-common.c virtio: introduce macro VIRTIO_CONFIG_IRQ_IDX 2023-01-08 01:54:22 -05:00
vhost-vsock-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-vsock.c hw/virtio: introduce virtio_device_should_start 2022-11-07 14:08:18 -05:00
vhost.c vhost: Drop unused eventfd_add|del hooks 2023-04-21 04:25:52 -04:00
virtio-9p-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-balloon-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-balloon.c virtio-balloon: optimize the virtio-balloon on the ARM platform 2023-04-21 04:25:52 -04:00
virtio-blk-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-bus.c virtio: stop ioeventfd on reset 2022-06-14 16:50:30 +02:00
virtio-config-io.c hw/virtio: Extract config read/write accessors to virtio-config-io.c 2022-12-21 07:32:24 -05:00
virtio-crypto-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-crypto.c cryptodev: Use CryptoDevBackendOpInfo for operation 2023-03-07 12:38:59 -05:00
virtio-hmp-cmds.c virtio: Move HMP commands from monitor/ to hw/virtio/ 2023-02-04 07:56:54 +01:00
virtio-input-host-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-input-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-iommu-pci.c hw/virtio/virtio-iommu-pci: Enforce the device is plugged on the root bus 2022-11-07 13:12:19 -05:00
virtio-iommu.c hw: Use TYPE_PCI_BUS definition where appropriate 2023-01-28 06:21:30 -05:00
virtio-mem-pci.c qapi machine: Elide redundant has_FOO in generated C 2022-12-14 20:04:47 +01:00
virtio-mem-pci.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-mem.c virtio-mem: Proper support for preallocation with migration 2023-02-06 19:22:56 +01:00
virtio-mmio.c virtio: refresh vring region cache after updating a virtqueue size 2023-04-21 03:08:21 -04:00
virtio-net-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-pci.c virtio: refresh vring region cache after updating a virtqueue size 2023-04-21 03:08:21 -04:00
virtio-pmem-pci.c qapi machine: Elide redundant has_FOO in generated C 2022-12-14 20:04:47 +01:00
virtio-pmem-pci.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-pmem.c include/block: Untangle inclusion loops 2023-01-20 07:24:28 +01:00
virtio-qmp.c vhost-user: Adopt new backend naming 2023-03-02 03:10:48 -05:00
virtio-qmp.h include/hw/virtio: Break inclusion loop 2023-01-08 01:54:22 -05:00
virtio-rng-pci.c virtio-rng-pci: Allow setting nvectors, so we can use MSI-X 2022-11-07 13:12:20 -05:00
virtio-rng.c virtio: drop name parameter for virtio_init() 2022-05-16 04:38:40 -04:00
virtio-scsi-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-serial-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-stub.c qmp: add QMP command x-query-virtio-queue-element 2022-10-09 16:38:45 -04:00
virtio.c virtio: refresh vring region cache after updating a virtqueue size 2023-04-21 03:08:21 -04:00