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Bug 1358141 - Removal of the "x-" prefix for dynamic cpu throttling
Summary: Removal of the "x-" prefix for dynamic cpu throttling
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm-rhev
Version: 7.3
Hardware: Unspecified
OS: Unspecified
Target Milestone: rc
: ---
Assignee: Amit Shah
QA Contact: Qianqian Zhu
Depends On: 1289285 1289288 1289290 1289291
TreeView+ depends on / blocked
Reported: 2016-07-20 07:29 UTC by zhe peng
Modified: 2016-11-07 21:24 UTC (History)
14 users (show)

Fixed In Version: qemu-kvm-rhev-2.6.0-19.el7
Doc Type: Enhancement
Doc Text:
Clone Of: 1289288
Last Closed: 2016-11-07 21:24:45 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2016:2673 normal SHIPPED_LIVE qemu-kvm-rhev bug fix and enhancement update 2016-11-08 01:06:13 UTC

Comment 2 Ademar Reis 2016-07-20 11:22:38 UTC
Looks like this is the upstream command to be backported:

commit d85a31d1f4d45462b7ca333190b5d14fad982f3e
Author: Jason J. Herne <>
Date:   Thu Apr 21 14:07:18 2016 -0400

    migration: Promote improved autoconverge commands out of experimental state
    The new autoconverge throttling commands have been tested for a release now. It
    is time to move them out of the experimental state.
    Signed-off-by: Jason J. Herne <>
    Message-Id: <>
    Signed-off-by: Amit Shah <>

Reassign to Amit.

Comment 3 Miroslav Rezanina 2016-08-05 10:57:14 UTC
Fix included in qemu-kvm-rhev-2.6.0-19.el7

Comment 5 Qianqian Zhu 2016-08-09 07:57:11 UTC
Verified with:

1. Launch guest:
 /usr/libexec/qemu-kvm -name linux -cpu Opteron_G5 -m 2048 -realtime mlock=off -smp 2,sockets=2,cores=1,threads=1  -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 -drive file=/nfsmnt/RHEL-Server-7.3-64-virtio-scsi.raw,if=none,id=scsi0,format=raw  -device virtio-scsi-pci,id=scsi0 -device scsi-disk,drive=scsi0,scsi-id=0,lun=0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x8 -spice port=5901,disable-ticketing -vga qxl -global qxl-vga.revision=3 -netdev tap,id=hostnet0,vhost=on -device virtio-net-pci,netdev=hostnet0,id=net0,mac=3C:D9:2B:09:AB:44,bus=pci.0,addr=0x4 -monitor stdio

2. Check migrate_set_parameter command

(qemu) migrate_set_parameter cp
cpu-throttle-increment  cpu-throttle-initial

Comment 6 Qianqian Zhu 2016-08-26 08:10:00 UTC
qmp case:
{"return": {"cpu-throttle-initial": 20, "decompress-threads": 2, "compress-threads": 8, "compress-level": 1, "cpu-throttle-increment": 10}}
{ "execute": "migrate-set-parameters" , "arguments":{"cpu-throttle-initial":30}}
{"return": {}}
{ "execute": "migrate-set-parameters" , "arguments":{"cpu-throttle-increment": 15}}
{"return": {}}

Comment 8 errata-xmlrpc 2016-11-07 21:24:45 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

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