V1 -> V2:
replace QEMU_JOB_ASYNC with QEMU_JOB_QUERY
Sometimes domain's memory dirty rate is expected by user in order to
decide whether it's proper to be migrated out or not.
We have already completed the QEMU part of the capability:
https://patchew.org/QEMU/1600237327-33618-1-git-send-email-zhengchuan@huawei.com/
And this serial of patches introduce the corresponding LIBVIRT part --
DomainGetDirtyRateInfo API and corresponding virsh api -- "getdirtyrate".
instructions:
bash# virsh getdirtyrate --help
NAME
getdirtyrate - Get a vm's memory dirty rate
SYNOPSIS
getdirtyrate <domain> [--seconds <number>] [--calculate] [--query]
DESCRIPTION
Get memory dirty rate of a domain in order to decide whether it's proper to be migrated out or not.
OPTIONS
[--domain] <string> domain name, id or uuid
--seconds <number> calculate memory dirty rate within specified seconds, a valid range of values is [1, 60], and would default to 1s.
--calculate calculate dirty rate only, can be used together with --query, either or both is expected, otherwise would default to both.
--query query dirty rate only, can be used together with --calculate, either or both is expected, otherwise would default to both.
example:
bash# virsh getdirtyrate --calculate --query --domain vm0 --seconds 1
status: measured
startTime: 820148
calcTime: 1 s
dirtyRate: 6 MB/s
Hao Wang (7):
migration/dirtyrate: Introduce virDomainDirtyRateInfo structure
migration/dirtyrate: Implement qemuMonitorJSONExtractDirtyRateInfo
migration/dirtyrate: Implement qemuDomainQueryDirtyRate
migration/dirtyrate: Implement qemuDomainCalculateDirtyRate
migration/dirtyrate: Introduce virDomainDirtyRateFlags
migration/dirtyrate: Introduce DomainGetDirtyRateInfo API
migration/dirtyrate: Introduce getdirtyrate virsh api
include/libvirt/libvirt-domain.h | 64 ++++++++++++++++++
src/driver-hypervisor.h | 7 ++
src/libvirt-domain.c | 46 +++++++++++++
src/libvirt_public.syms | 5 ++
src/qemu/qemu_driver.c | 70 +++++++++++++++++++
src/qemu/qemu_migration.c | 59 ++++++++++++++++
src/qemu/qemu_migration.h | 10 +++
src/qemu/qemu_monitor.c | 24 +++++++
src/qemu/qemu_monitor.h | 8 +++
src/qemu/qemu_monitor_json.c | 97 ++++++++++++++++++++++++++
src/qemu/qemu_monitor_json.h | 8 +++
src/remote/remote_driver.c | 1 +
src/remote/remote_protocol.x | 21 +++++-
tools/virsh-domain.c | 112 +++++++++++++++++++++++++++++++
14 files changed, 531 insertions(+), 1 deletion(-)
--
2.23.0