Displaying 20 results from an estimated 31 matches for "soica".
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2016 Aug 17
2
Nested KVM issue
It sounds weird, but attempt to disable KSM and see would it help or no ?
________________________________
From: centos-virt-bounces at centos.org <centos-virt-bounces at centos.org> on behalf of Laurentiu Soica <laurentiu at soica.ro>
Sent: Wednesday, August 17, 2016 4:56 AM
To: Discussion about the virtualization on CentOS
Subject: Re: [CentOS-virt] Nested KVM issue
Enabled the logging on both compute and baremetal. Nothing strange in logs:
on baremetal :
Wed Aug 17 11:51:01 EEST 2016: committed...
2016 Aug 17
2
Nested KVM issue
...is where would it lead to worse or better Guest behavior ?
I am not expecting complete fix. I would track via top/htop and dmesg via Cron on 1-2 hr
period.
________________________________
From: centos-virt-bounces at centos.org <centos-virt-bounces at centos.org> on behalf of Laurentiu Soica <laurentiu at soica.ro>
Sent: Wednesday, August 17, 2016 6:38 AM
To: Discussion about the virtualization on CentOS
Subject: Re: [CentOS-virt] Nested KVM issue
Both baremetal and compute ? Are there any other metrics do you consider useful to collect for troubleshooting purposes ?
?n mie., 17...
2016 Aug 16
2
Nested KVM issue
I would enable ksmtuned logging ,if it has been done verify logs
________________________________
From: centos-virt-bounces at centos.org <centos-virt-bounces at centos.org> on behalf of Laurentiu Soica <laurentiu at soica.ro>
Sent: Tuesday, August 16, 2016 7:16 AM
To: Discussion about the virtualization on CentOS
Subject: Re: [CentOS-virt] Nested KVM issue
Yes. It is on both baremetal and compute node.
?n mar., 16 aug. 2016 la 13:37, Boris Derzhavets <bderzhavets at hotmail.com<mail...
2016 Aug 22
2
Nested KVM issue
...- 93.62% 93.62% qemu-kvm
[kernel.kallsyms] [k] _raw_spin_lock
- _raw_spin_lock
+ 45.30% kvm_mmu_sync_roots
+ 28.49% kvm_mmu_load
+ 25.00% mmu_free_roots
+ 1.12% tdp_page_fault
?n joi, 18 aug. 2016 la 11:59, Laurentiu Soica <laurentiu at soica.ro> a scris:
> I've tried with KSM disabled and nothing changed.
>
> I've upgraded KVM to qemu-kvm-ev. I'm waiting to see if there are any
> improvements and report back.
>
> ?n mie., 17 aug. 2016 la 15:10, Boris Derzhavets <bderzhavets at...
2016 Aug 16
2
Nested KVM issue
Is KSM enabled on your Compute Nodes ( presuming CentOS 7.2 on bare metal ) ?
________________________________
From: centos-virt-bounces at centos.org <centos-virt-bounces at centos.org> on behalf of Laurentiu Soica <laurentiu at soica.ro>
Sent: Tuesday, August 16, 2016 5:25 AM
To: Discussion about the virtualization on CentOS
Subject: Re: [CentOS-virt] Nested KVM issue
Running the compute node for several days simply triggers it.
?n mar., 16 aug. 2016 la 12:12, Boris Derzhavets <bderzhavets at hotm...
2016 Aug 16
2
Nested KVM issue
Sorry,
How you trigger the problem ?
B.
________________________________
From: centos-virt-bounces at centos.org <centos-virt-bounces at centos.org> on behalf of Laurentiu Soica <laurentiu at soica.ro>
Sent: Tuesday, August 16, 2016 3:28 AM
To: Discussion about the virtualization on CentOS
Subject: Re: [CentOS-virt] Nested KVM issue
Hello,
The issue reproduced again and it doesn't look like a swap problem. Some details:
on the baremetal, from top:
top - 08:08...
2016 Aug 14
4
Nested KVM issue
________________________________
From: centos-virt-bounces at centos.org <centos-virt-bounces at centos.org> on behalf of Laurentiu Soica <laurentiu at soica.ro>
Sent: Sunday, August 14, 2016 10:17 AM
To: Discussion about the virtualization on CentOS
Subject: Re: [CentOS-virt] Nested KVM issue
More details on the subject:
I suppose it is a nested KVM issue because it raised after I enabled the nested KVM feature. Without it,...
2016 Aug 18
0
Nested KVM issue
...; behavior ?
>
> I am not expecting complete fix. I would track via top/htop and dmesg
> via Cron on 1-2 hr
>
> period.
>
>
> ------------------------------
> *From:* centos-virt-bounces at centos.org <centos-virt-bounces at centos.org>
> on behalf of Laurentiu Soica <laurentiu at soica.ro>
> *Sent:* Wednesday, August 17, 2016 6:38 AM
>
> *To:* Discussion about the virtualization on CentOS
> *Subject:* Re: [CentOS-virt] Nested KVM issue
> Both baremetal and compute ? Are there any other metrics do you consider
> useful to collect for tro...
2016 Aug 15
2
Nested KVM issue
...Haswell was launched via my experience Intel Xeons based on this kernel (or latter kernels ) behaves much better then SandyBridge or IvyBridge based.
Boris.
________________________________
From: centos-virt-bounces at centos.org <centos-virt-bounces at centos.org> on behalf of Laurentiu Soica <laurentiu at soica.ro>
Sent: Monday, August 15, 2016 1:15 AM
To: Discussion about the virtualization on CentOS
Subject: Re: [CentOS-virt] Nested KVM issue
Hello Borins,
1. So, in about three days after a reboot (this happened several times already) the compute node reports high CPU usage....
2016 Aug 17
0
Nested KVM issue
...s Derzhavets <bderzhavets at hotmail.com>
a scris:
> It sounds weird, but attempt to disable KSM and see would it help or no ?
>
>
> ------------------------------
> *From:* centos-virt-bounces at centos.org <centos-virt-bounces at centos.org>
> on behalf of Laurentiu Soica <laurentiu at soica.ro>
> *Sent:* Wednesday, August 17, 2016 4:56 AM
>
> *To:* Discussion about the virtualization on CentOS
> *Subject:* Re: [CentOS-virt] Nested KVM issue
> Enabled the logging on both compute and baremetal. Nothing strange in
> logs:
>
> on baremetal...
2016 Aug 14
2
Nested KVM issue
...ncern is :-
Number_of_ Cloud_VMs versus Number_CPU_Cores ( not threads)
Please, check `top` report in regards of swap area size.
Thanks.
Boris.
________________________________
From: centos-virt-bounces at centos.org <centos-virt-bounces at centos.org> on behalf of Laurentiu Soica <laurentiu at soica.ro>
Sent: Sunday, August 14, 2016 3:06 PM
To: Discussion about the virtualization on CentOS
Subject: Re: [CentOS-virt] Nested KVM issue
Hello,
1. <domain type='kvm' id='6'>
<name>baremetalbrbm_1</name>
<uuid>534e9b54-5e4c-4acb-...
2016 Aug 17
0
Nested KVM issue
...:26, Boris Derzhavets <bderzhavets at hotmail.com>
a scris:
> I would enable ksmtuned logging ,if it has been done verify logs
>
>
> ------------------------------
> *From:* centos-virt-bounces at centos.org <centos-virt-bounces at centos.org>
> on behalf of Laurentiu Soica <laurentiu at soica.ro>
> *Sent:* Tuesday, August 16, 2016 7:16 AM
>
> *To:* Discussion about the virtualization on CentOS
> *Subject:* Re: [CentOS-virt] Nested KVM issue
> Yes. It is on both baremetal and compute node.
>
> ?n mar., 16 aug. 2016 la 13:37, Boris Derzhavets...
2016 Aug 04
3
Centos 7 newer kernel needed
...imilar with CentOS and CentOS 7 already capable with on with KVM Nested EPT with CPU pass-through options supported. Hope that helps & cheers!!
>
> Xlord
>
>
>
> *From:* centos-virt-bounces at centos.org [mailto:
> centos-virt-bounces at centos.org] *On Behalf Of *Laurentiu Soica
> *Sent:* Thursday, August 4, 2016 3:07 AM
> *To:* centos-virt at centos.org
> *Subject:* [CentOS-virt] Centos 7 newer kernel needed
>
>
>
> Hello,
>
> I am looking for a Linux kernel for Centos 7 that implements a feature
> introduced in kernel version 3.12:
>
>...
2016 Aug 22
0
Nested KVM issue
...39;d like
to apologize in advance for): have you tried to test other kernel
instead of the stock one? You can have a look at
http://elrepo.org/tiki/kernel-ml and http://elrepo.org/tiki/kernel-lt
and use them for some comparison testing.
Cheers,
---
Adi Pircalabu
On 22-08-2016 18:31, Laurentiu Soica wrote:
> No luck with qemu-kvm-ev, the behavior is the same. Running perf
> record -a -g on the baremetal shows that most of the CPU time is in
> _raw_spin_lock
>
> Children Self Command Shared Object
> Symbol
>...
2016 Aug 16
0
Nested KVM issue
...ts <bderzhavets at hotmail.com>
a scris:
> Is KSM enabled on your Compute Nodes ( presuming CentOS 7.2 on bare metal
> ) ?
>
>
> ------------------------------
> *From:* centos-virt-bounces at centos.org <centos-virt-bounces at centos.org>
> on behalf of Laurentiu Soica <laurentiu at soica.ro>
> *Sent:* Tuesday, August 16, 2016 5:25 AM
>
> *To:* Discussion about the virtualization on CentOS
> *Subject:* Re: [CentOS-virt] Nested KVM issue
> Running the compute node for several days simply triggers it.
>
> ?n mar., 16 aug. 2016 la 12:12, B...
2016 Aug 24
2
Transparent HugePages question
So basically you're saying that this THP feature is broken for CentOS 7 ?
The feature is enabled by default. Is there a thread opened on this issue ?
?n mie., 24 aug. 2016 la 18:13, <m.roth at 5-cent.us> a scris:
> Laurentiu Soica wrote:
> > Hello,
> >
> > I have a CentOS 7 installation on baremetal with 2 CPUs, 10 cores each
> and
> > HT enabled, 128 GB RAM.
> >
> > The system has transparent hugetables enabled.
> <snip>
> > So it turns out that even is I have the THP en...
2016 Aug 13
2
Nested KVM issue
Hello,
I have an OpenStack setup in virtual environment on CentOS 7.
The baremetal has *nested KVM* enabled and 1 compute node as a VM.
Inside the compute node I have multiple VMs running.
After about every 3 days the VMs get inaccessible and the compute node
reports high CPU usage. The qemu-kvm process for each VM inside the compute
node reports full CPU usage.
Please help me with some hints
2016 Aug 16
0
Nested KVM issue
...la 12:12, Boris Derzhavets <bderzhavets at hotmail.com>
a scris:
> Sorry,
>
> How you trigger the problem ?
>
> B.
>
>
> ------------------------------
> *From:* centos-virt-bounces at centos.org <centos-virt-bounces at centos.org>
> on behalf of Laurentiu Soica <laurentiu at soica.ro>
> *Sent:* Tuesday, August 16, 2016 3:28 AM
>
> *To:* Discussion about the virtualization on CentOS
> *Subject:* Re: [CentOS-virt] Nested KVM issue
> Hello,
>
> The issue reproduced again and it doesn't look like a swap problem. Some
> detail...
2016 Aug 15
0
Nested KVM issue
...Intel Xeons based on this
> kernel (or latter kernels ) behaves much better then SandyBridge or
> IvyBridge based.
>
> Boris.
>
> ------------------------------
> *From:* centos-virt-bounces at centos.org <centos-virt-bounces at centos.org>
> on behalf of Laurentiu Soica <laurentiu at soica.ro>
> *Sent:* Monday, August 15, 2016 1:15 AM
>
> *To:* Discussion about the virtualization on CentOS
> *Subject:* Re: [CentOS-virt] Nested KVM issue
> Hello Borins,
>
> 1. So, in about three days after a reboot (this happened several times
> alread...
2016 Aug 04
2
Centos 7 newer kernel needed
...t; Dear Laurentiu,
>
> Could you please check if your CPU supported from /proc/cpuinfo and lscpu ?
>
>
>
> EPT supported
>
> Xlord
>
>
>
> *From:* -=X.L.O.R.D=- [mailto:xlord.sl at gmail.com]
> *Sent:* Thursday, August 4, 2016 5:12 PM
> *To:* 'Laurentiu Soica' <laurentiu at soica.ro>; 'Discussion about the
> virtualization on CentOS' <centos-virt at centos.org>
> *Subject:* RE: [CentOS-virt] Centos 7 newer kernel needed
>
>
>
> Dear Laurentiu,
>
> Assume your hardware does support Intel VT-x with EPT suppo...