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Bug 919375

Summary: [RFE] virsh schedinfo should support multiple --set parameters
Product: Red Hat Enterprise Linux 7 Reporter: Wayne Sun <gsun>
Component: libvirtAssignee: Martin Kletzander <mkletzan>
Status: CLOSED CURRENTRELEASE QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: high    
Version: 7.0CC: acathrow, bili, cwei, dallan, dyuan, jiahu, jmiao, mzhan
Target Milestone: rcKeywords: FutureFeature
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: libvirt-1.0.5-1.el7 Doc Type: Enhancement
Doc Text:
Story Points: ---
Clone Of: 919372 Environment:
Last Closed: 2014-06-13 12:21:56 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 919372    
Bug Blocks:    

Description Wayne Sun 2013-03-08 09:42:11 UTC 
the problem also exist on:
libvirt-1.0.3-1.el7.x86_64 

+++ This bug was initially created as a clone of Bug #919372 +++

Description of problem:
virsh schedinfo accept setting 5 scheduler parameters on qemu, but will get unexpected data error when given set params exceed 3

# virsh schedinfo libvirt_test_api vcpu_period=100000 emulator_period=1000000 emulator_quota=-1
Scheduler      : posix
cpu_shares     : 1024
vcpu_period    : 100000
vcpu_quota     : 0
emulator_period: 1000000
emulator_quota : 0

# virsh schedinfo libvirt_test_api vcpu_quota=-1 vcpu_period=100000 emulator_period=1000000 emulator_quota=-1
error: unexpected data 'emulator_quota=-1'

it'll get the unexpected data error when given set parameters exceed 3

Version-Release number of selected component (if applicable):
libvirt-0.10.2-18.el6.x86_64 

How reproducible:
100% 

Steps to Reproduce:
1. as description 
2.
3.
  
Actual results:
virsh schedinfo fail with unexpected data error when params exceed 3 

Expected results:
it should work when give as many as supported params at same time 

Additional info:
Comment 2 Martin Kletzander 2013-03-14 09:28:29 UTC 
Patch proposed upstream:

https://www.redhat.com/archives/libvir-list/2013-March/msg00739.html
Comment 3 Martin Kletzander 2013-04-03 06:52:16 UTC 
Moving to POST:

commit e7cd2844ca2b0d716a520667eff286713963e2ec
Author: Martin Kletzander <mkletzan>
Date:   Fri Mar 15 14:42:42 2013 +0100

    Allow multiple parameters for schedinfo
Comment 4 Hu Jianwei 2013-05-07 06:51:00 UTC 
Hi Martin Kletzander,

There is a new issue during executing schedinfo command, please see below information, I don't know whether this issue is caused by your fix or another new. Please help on it.

Version:
libvirt-1.0.5-1.el7.x86_64
qemu-kvm-1.4.0-4.el7.x86_64
kernel-3.9.0-0.55.el7.x86_64


[root@hujianweitest ~]# virsh schedinfo rhel7
Scheduler      : posix
cpu_shares     : 1024
vcpu_period    : 100000
vcpu_quota     : -1
emulator_period: 100000
emulator_quota : -1

[root@hujianweitest ~]#
[root@hujianweitest ~]# virsh schedinfo rhel7 vcpu_period=200000
Scheduler      : posix
error: Unable to find vcpu cgroup for rhel7(vcpu: 0): No such file or directory

[root@hujianweitest ~]# virsh schedinfo rhel7 vcpu_period=200
Scheduler      : posix
error: invalid argument: value of 'vcpu_period' is out of range [1000, 1000000]

[root@hujianweitest ~]# virsh schedinfo rhel7 vcpu_period=1000
Scheduler      : posix
error: Unable to find vcpu cgroup for rhel7(vcpu: 0): No such file or directory

[root@hujianweitest ~]# virsh schedinfo rhel7 emulator_period=200000
Scheduler      : posix
error: Unable to find emulator cgroup for rhel7: No such file or directory

[root@hujianweitest ~]# virsh schedinfo rhel7 emulator_quota=-1
Scheduler      : posix
error: Unable to find emulator cgroup for rhel7: No such file or directory

[root@hujianweitest ~]# virsh schedinfo rhel7
Scheduler      : posix
cpu_shares     : 1024
vcpu_period    : 100000
vcpu_quota     : -1
emulator_period: 100000
emulator_quota : -1

BR,
Jianwei
Comment 5 Hu Jianwei 2013-05-07 08:14:40 UTC 
Hi,

Updated some results, according to reproduced steps.

[root@hujianweitest ~]# virsh schedinfo rhel7
Scheduler      : posix
cpu_shares     : 1024
vcpu_period    : 100000
vcpu_quota     : -1
emulator_period: 100000
emulator_quota : -1

[root@hujianweitest ~]# virsh schedinfo rhel7 vcpu_period=100000 emulator_period=1000000 emulator_quota=-1
Scheduler      : posix
error: Unable to find vcpu cgroup for rhel7(vcpu: 0): No such file or directory

[root@hujianweitest ~]# virsh schedinfo rhel7 vcpu_quota=-1 vcpu_period=100000 emulator_period=1000000 emulator_quota=-1
Scheduler      : posix
error: Unable to find vcpu cgroup for rhel7(vcpu: 0): No such file or directory

[root@hujianweitest ~]#

BR,
Jianwei
Comment 9 Hu Jianwei 2013-11-19 10:00:11 UTC 
I can not reproduce it on libvirt-1.1.1-12.el7.x86_64.

Version:
libvirt-1.1.1-12.el7.x86_64
qemu-kvm-1.5.3-19.el7.x86_64
kernel-3.10.0-51.el7.x86_64

1. Check multiple --set parameters
[root@ibm-x3650m3-07 ~]# virsh schedinfo rhel7
Scheduler      : posix
cpu_shares     : 1024
vcpu_period    : 1000
vcpu_quota     : -1
emulator_period: 200000
emulator_quota : -1

[root@ibm-x3650m3-07 ~]# virsh schedinfo rhel7 vcpu_period=100000 emulator_period=1000000 emulator_quota=-1
Scheduler      : posix
cpu_shares     : 1024
vcpu_period    : 100000
vcpu_quota     : -1
emulator_period: 1000000
emulator_quota : -1

[root@ibm-x3650m3-07 ~]# virsh schedinfo rhel7
Scheduler      : posix
cpu_shares     : 1024
vcpu_period    : 100000
vcpu_quota     : -1
emulator_period: 1000000
emulator_quota : -1

[root@ibm-x3650m3-07 ~]# virsh schedinfo rhel7 vcpu_period=100000 emulator_period=1000000 emulator_quota=2000 vcpu_quota=1000 cpu_shares=2000
Scheduler      : posix
cpu_shares     : 2000
vcpu_period    : 100000
vcpu_quota     : 1000
emulator_period: 1000000
emulator_quota : 2000

[root@ibm-x3650m3-07 ~]# virsh schedinfo rhel7
Scheduler      : posix
cpu_shares     : 2000
vcpu_period    : 100000
vcpu_quota     : 1000
emulator_period: 1000000
emulator_quota : 2000

2. Also, check the single parameter:
[root@ibm-x3650m3-07 ~]# virsh schedinfo rhel7 vcpu_period=200000
Scheduler      : posix
cpu_shares     : 1024
vcpu_period    : 200000
vcpu_quota     : -1
emulator_period: 1000000
emulator_quota : -1

[root@ibm-x3650m3-07 ~]# virsh schedinfo rhel7 vcpu_period=200
Scheduler      : posix
error: invalid argument: value of 'vcpu_period' is out of range [1000, 1000000]

[root@ibm-x3650m3-07 ~]# virsh schedinfo rhel7 vcpu_period=1000
Scheduler      : posix
cpu_shares     : 1024
vcpu_period    : 1000
vcpu_quota     : -1
emulator_period: 1000000
emulator_quota : -1

[root@ibm-x3650m3-07 ~]# virsh schedinfo rhel7 emulator_period=200000
Scheduler      : posix
cpu_shares     : 1024
vcpu_period    : 1000
vcpu_quota     : -1
emulator_period: 200000
emulator_quota : -1

[root@ibm-x3650m3-07 ~]# virsh schedinfo rhel7 emulator_quota=-1
Scheduler      : posix
cpu_shares     : 1024
vcpu_period    : 1000
vcpu_quota     : -1
emulator_period: 200000
emulator_quota : -1

We can get expected results.
Comment 10 Ludek Smid 2014-06-13 12:21:56 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.