Displaying 13 results from an estimated 13 matches for "blockstats".
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clockstats
2012 Mar 14
2
Memory statistics for DomU's
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2014 Jun 24
2
data monitored by "virDomainBlockStats" API not consistent with ones reading from /proc/[pid]/io, and corrugated with /proc/diskstats
Hi, all.
While monitoring KVM VMs’ disk utilisation using libvirt API “virDomainBlockStats", I find that the results acquired is not consistent
with the value read from /proc/[vm_pid]/io(i only care about “rd_bytes" and “wr_bytes” fields). Since libvirt doesn’t support host level monitoring,
i have to calculate the host’s disk utilisation by reading from the /proc/diskstats...
2013 Jan 24
0
Again ACL Postgres dict trouble, no update and raw backtrace
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Hi,
I have ACL-dict-postgres trouble again. Eventually a session does not
update the ACL dictionary no longer.
I execute (for testing) this script:
for a in $(seq 1 ${1-4}); do
echo 3-$a deleteAcl Junk dvtest1
sleep 30
echo 3-$a SetAcl Junk dvtest1 kxilrsc
sleep 30
2017 Apr 28
2
Re: Libvirtd freezes
On 04/27/2017 04:31 PM, Stefano Ricci wrote:
> Here is the backtrace of the libvirt process just started
[Just a side note, you shouldn't top post on technical lists. Gmail
sucks at this.]
>
> https://pastebin.com/R66myzFp
Looks like libvirtd is trying to spawn /usr/bin/qemu-system-x86_64 but
it takes ages to init. In the debug logs you might see the actual
command line that
2017 Apr 29
2
Re: Libvirtd freezes
...quot;: "query-cpu-definitions"}, {"name":
> "query-commands"}, {"name": "query-command-line-options"}, {"name":
> "query-chardev-backends"}, {"name": "query-chardev"}, {"name":
> "query-blockstats"}, {"name": "query-block-jobs"}, {"name":
> "query-block"}, {"name": "query-balloon"}, {"name":
> "query-acpi-ospm-status"}, {"name": "qom-set"}, {"name":
> "qom-list-typ...
2011 Jan 03
1
availability of snapshots functionality via Python bindings
...in:
>>> dir(dom0)
['ID', 'OSType', 'UUID', 'UUIDString', 'XMLDesc', '__del__', '__doc__',
'__init__', '__module__', '_conn', '_o', 'attachDevice', 'autostart',
'blockPeek', 'blockStats', 'connect', 'coreDump', 'create', 'destroy',
'detachDevice', 'info', 'interfaceStats', 'maxMemory', 'maxVcpus',
'memoryPeek', 'migrate', 'name', 'pinVcpu', 'reboot', 'resume'...
2011 Feb 14
1
Use libvirt-python to attach cdrom
Hi all,
I want to attach cdrom by libvirt.py .But can't find a func in
libvirt.py can finish this work.
Who can help me ?
Regard
--
Seven Ling
E-mail: jiejie.ling at qq.com
2014 Jun 24
0
Re: data monitored by "virDomainBlockStats" API not consistent with ones reading from /proc/[pid]/io, and corrugated with /proc/diskstats
On 06/24/2014 02:24 AM, coperd wrote:
>
> It is supposed that the VM’s disk “rd_bytes" and “wr_bytes" should
never exceed the value of the physical disk respectively, right ?
That's a question for the qemu folks.
> Doesn’t
> libvirt virDomainBlockStats read disk information from “proc” ?
No, libvirt reads it from the qemu QMP command query-blockstats. Beyond
that, you'll have to investigate how qemu comes up with that number.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
2017 Apr 29
0
Re: Libvirtd freezes
...}, {"name": "query-cpu-definitions"}, {"name":
"query-commands"}, {"name": "query-command-line-options"}, {"name":
"query-chardev-backends"}, {"name": "query-chardev"}, {"name":
"query-blockstats"}, {"name": "query-block-jobs"}, {"name":
"query-block"}, {"name": "query-balloon"}, {"name":
"query-acpi-ospm-status"}, {"name": "qom-set"}, {"name":
"qom-list-types"}, {&qu...
2014 Jun 25
2
Re: data monitored by "virDomainBlockStats" API not consistent with ones reading from /proc/[pid]/io, and corrugated with /proc/diskstats
...a wr_bytes 728186880
Command line "cat /proc/4438/io” get the result below:
read_bytes: 772415488
write_bytes: 734040064
I execute the above two commands consecutively using “&&", but we can
that the results vary a lot, especially for the read_bytes.
Since libvirt virDomainBlockStats API reads data from qemu i should ask
the qemu folks for the answers. Great thanks, anyway.
On Jun 25, 2014, at 3:45 AM, Eric Blake <eblake@redhat.com> wrote:
> On 06/24/2014 02:24 AM, coperd wrote:
>
>>
>> It is supposed that the VM’s disk “rd_bytes" and “wr_byt...
2017 Apr 30
0
Re: Libvirtd freezes
...;query-cpu-definitions"}, {"name":
>> "query-commands"}, {"name": "query-command-line-options"}, {"name":
>> "query-chardev-backends"}, {"name": "query-chardev"}, {"name":
>> "query-blockstats"}, {"name": "query-block-jobs"}, {"name":
>> "query-block"}, {"name": "query-balloon"}, {"name":
>> "query-acpi-ospm-status"}, {"name": "qom-set"}, {"name":
>> "...
2011 Mar 25
0
Some notes on using QMP to hot plug disks
...abilities"}, {"name":
"human-monitor-command"}, {"name": "query-version"}, {"name":
"query-commands"}, {"name": "query-chardev"}, {"name": "query-block"},
{"name": "query-blockstats"}, {"name": "query-cpus"}, {"name":
"query-pci"}, {"name": "query-kvm"}, {"name": "query-status"},
{"name": "query-mice"}, {"name": "query-vnc"}, {"name":...
2011 Jun 06
0
Release of libvirt-0.9.2
...lake)
- storage: avoid memory leak on stat failure (Eric Blake)
- storage: avoid memory leak (Eric Blake)
- libvirtd: avoid leak on failure (Eric Blake)
- command: avoid leak on failure (Eric Blake)
- Explicitly set VM state to paused after migration completes (Daniel P. Berrange)
- Fix regressions BlockStats/Info APIs in QEMU driver (Daniel P. Berrange)
- Fix minor issues in libxenlight managed save (Jim Fehlig)
- Fix auditing of disk hotunplug operations (Daniel P. Berrange)
- Avoid crash on NULL pointer in lock driver impls during hotplug (Daniel P. Berrange)
- Fix return value in lock manager hotplu...