1:06 p.m.
--------------020500020201060207010309
Content-Type: text/plain; charset="UTF-8"; format=flowed
Content-Transfer-Encoding: 8bit
Hi, Guys
Recently I am investigating the Optimization Policy in Cluster and try
to use “CPU Threads”.
As the manual of description:
========
For example, a 24-core
system with 2 threads per core (48
threads total) can run virtual machines with
up to 48 cores each
========
My host CPU is
i3-2120 CPU (2 cores 4 threads)
So I think the expect result case is :
1. If the “Count Threads As Cores” *disable*, we can’t run virtual vm
with above 2 vCPU
2. If the “Count Threads As Cores” *enable*, we can’t run virtual vm
with above 4 vCPU
Now the problem is about result case 1:
1. When I set “Count Threads As Cores” *disable*, I still can run
virtual vm with 4 vCPU
Can anyone help me to explain it ???
Regards,
Jian
--------------020500020201060207010309
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: 8bit
<html>
<head>
<meta content="text/html; charset=UTF-8"
http-equiv="Content-Type">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p class="MsoNormal"><span lang="EN-US">Hi,
Guys<o:p></o:p></span></p>
<span lang="EN-US">Recently I am investigating the Optimization
Policy in Cluster and try to use “</span><span
style="font-family:"Arial","sans-serif";color:black;background:white"
lang="EN-US">CPU Threads</span><span
lang="EN-US">”.<o:p></o:p></span>
<p class="MsoNormal"><span lang="EN-US">As the manual
of
description:<o:p></o:p></span></p>
<p class="MsoNormal"><span
lang="EN-US">========<o:p></o:p></span></p>
<p class="MsoNormal"
style="text-align:left;text-autospace:none"
align="left"><span style="font-family:DejaVuSans"
lang="EN-US">For
example, a 24-core<o:p></o:p></span></p>
<p class="MsoNormal"
style="text-align:left;text-autospace:none"
align="left"><span style="font-family:DejaVuSans"
lang="EN-US">system
with 2 threads per core (48<o:p></o:p></span></p>
<p class="MsoNormal"
style="text-align:left;text-autospace:none"
align="left"><span style="font-family:DejaVuSans"
lang="EN-US">threads
total) can run virtual machines
with<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:DejaVuSans"
lang="EN-US">up to 48 cores each</span><span
lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span
lang="EN-US">========<o:p></o:p></span></p>
<p class="MsoNormal"><span
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">My host CPU
is<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">i3-2120 CPU
(2 cores 4
threads)<o:p></o:p></span></p>
<p class="MsoNormal"><span
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">So I think the
expect result
case is :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">1. If the
“</span><span
style="font-family:"Arial Unicode
MS","sans-serif";color:black;background:white"
lang="EN-US">Count Threads As Cores</span><span
lang="EN-US">”
</span><b><span style="font-size:14.0pt"
lang="EN-US">disable</span></b><span
lang="EN-US">, we can’t run virtual vm with above 2
vCPU<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">2. If the
“</span><span
style="font-family:"Arial Unicode
MS","sans-serif";color:black;background:white"
lang="EN-US">Count Threads As Cores</span><span
lang="EN-US">”
</span><b><span style="font-size:14.0pt"
lang="EN-US">enable</span></b><span
lang="EN-US">, we can’t run virtual vm with above 4
vCPU<o:p></o:p></span></p>
<p class="MsoNormal"><span
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Now the
problem is about
result case 1:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">1. When I set
“</span><span
style="font-family:"Arial Unicode
MS","sans-serif";color:black;background:white"
lang="EN-US">Count Threads As Cores</span><span
lang="EN-US">”
</span><b><span style="font-size:14.0pt"
lang="EN-US">disable</span></b><span
lang="EN-US">, I still can run virtual vm with 4
vCPU<o:p></o:p></span></p>
<p class="MsoNormal"><span
lang="EN-US"><o:p> </o:p></span></p>
<span lang="EN-US">Can anyone help me to explain it ???<br>
<br>
Regards,<br>
Jian<br>
</span>
</body>
</html>
--------------020500020201060207010309--
1:55 p.m.
Can you please provide output of lscpu for your host please.
Thanks
----- Original Message -----
From: "zhangjian2011" <zhangjian2011(a)cn.fujitsu.com>
To: users(a)ovirt.org
Sent: Wednesday, August 12, 2015 1:06:11 PM
Subject: [ovirt-users] CPU Threads Help!!!
Hi, Guys Recently I am investigating the Optimization Policy in Cluster and try to use “
CPU Threads ”.
As the manual of description:
========
For example, a 24-core
system with 2 threads per core (48
threads total) can run virtual machines with
up to 48 cores each
========
My host CPU is
i3-2120 CPU (2 cores 4 threads)
So I think the expect result case is :
1. If the “ Count Threads As Cores ” disable , we can’t run virtual vm with above 2 vCPU
2. If the “ Count Threads As Cores ” enable , we can’t run virtual vm with above 4 vCPU
Now the problem is about result case 1:
1. When I set “ Count Threads As Cores ” disable , I still can run virtual vm with 4 vCPU
Can anyone help me to explain it ???
Regards,
Jian
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
8:54 a.m.
On 08/12/2015 01:55 PM, Artyom Lukianov wrote:
Can you please provide output of lscpu for your host please.
Thanks
----- Original Message -----
From: "zhangjian2011" <zhangjian2011(a)cn.fujitsu.com>
To: users(a)ovirt.org
Sent: Wednesday, August 12, 2015 1:06:11 PM
Subject: [ovirt-users] CPU Threads Help!!!
Hi, Guys Recently I am investigating the Optimization Policy in Cluster and try to use “
CPU Threads ”.
As the manual of description:
========
For example, a 24-core
system with 2 threads per core (48
threads total) can run virtual machines with
up to 48 cores each
========
My host CPU is
i3-2120 CPU (2 cores 4 threads)
So I think the expect result case is :
1. If the “ Count Threads As Cores ” disable , we can’t run virtual vm with above 2 vCPU
2. If the “ Count Threads As Cores ” enable , we can’t run virtual vm with above 4 vCPU
Now the problem is about result case 1:
1. When I set “ Count Threads As Cores ” disable , I still can run virtual vm with 4
vCPU
Can anyone help me to explain it ???
Like Artyom mentioned, it best to see your lscpu output but my guess is
that the 4 threads is actually 2 per core.
And there are 2 core and 2 sockets. this means 4 cpus without hyper
threading and 8 with.
BTW the Host "General" subtab on the webadmin should output all this
info as well. Check it out.
Regards,
Jian
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
5:42 p.m.
13.08.2015 08:54, Roy Golan пишет:
On 08/12/2015 01:55 PM, Artyom Lukianov wrote:
> Can you please provide output of lscpu for your host please.
> Thanks
> ----- Original Message -----
> From: "zhangjian2011" <zhangjian2011(a)cn.fujitsu.com>
> To: users(a)ovirt.org
> Sent: Wednesday, August 12, 2015 1:06:11 PM
> Subject: [ovirt-users] CPU Threads Help!!!
>
>
>
> Hi, Guys Recently I am investigating the Optimization Policy in
> Cluster and try to use “ CPU Threads ”.
>
> As the manual of description:
>
> ========
>
> For example, a 24-core
>
> system with 2 threads per core (48
>
> threads total) can run virtual machines with
>
> up to 48 cores each
>
> ========
>
>
>
> My host CPU is
>
> i3-2120 CPU (2 cores 4 threads)
>
>
>
> So I think the expect result case is :
>
> 1. If the “ Count Threads As Cores ” disable , we can’t run virtual
> vm with above 2 vCPU
>
> 2. If the “ Count Threads As Cores ” enable , we can’t run virtual vm
> with above 4 vCPU
>
>
>
> Now the problem is about result case 1:
>
> 1. When I set “ Count Threads As Cores ” disable , I still can run
> virtual vm with 4 vCPU
>
> Can anyone help me to explain it ???
Like Artyom mentioned, it best to see your lscpu output but my guess
is that the 4 threads is actually 2 per core.
And there are 2 core and 2 sockets. this means 4 cpus without hyper
threading and 8 with.
BTW the Host "General" subtab on the webadmin should output all this
info as well. Check it out.
According to ARK Intel Core i3-2120 cannot be used in dual-socket
configurations.
3:47 a.m.
Sorry for late reply.
# lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 2
Core(s) per socket: 2
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 42
Model name: Intel(R) Core(TM) i3-2120 CPU @ 3.30GHz
Stepping: 7
CPU MHz: 2704.195
BogoMIPS: 6585.15
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 3072K
NUMA node0 CPU(s): 0-3
Thanks.
On 08/12/2015 06:55 PM, Artyom Lukianov wrote:
Can you please provide output of lscpu for your host please.
Thanks
----- Original Message -----
From: "zhangjian2011" <zhangjian2011(a)cn.fujitsu.com>
To: users(a)ovirt.org
Sent: Wednesday, August 12, 2015 1:06:11 PM
Subject: [ovirt-users] CPU Threads Help!!!
Hi, Guys Recently I am investigating the Optimization Policy in Cluster and try to use “
CPU Threads ”.
As the manual of description:
========
For example, a 24-core
system with 2 threads per core (48
threads total) can run virtual machines with
up to 48 cores each
========
My host CPU is
i3-2120 CPU (2 cores 4 threads)
So I think the expect result case is :
1. If the “ Count Threads As Cores ” disable , we can’t run virtual vm with above 2 vCPU
2. If the “ Count Threads As Cores ” enable , we can’t run virtual vm with above 4 vCPU
Now the problem is about result case 1:
1. When I set “ Count Threads As Cores ” disable , I still can run virtual vm with 4
vCPU
Can anyone help me to explain it ???
Regards,
Jian
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
.
3385
days inactive
3390
days old
4 comments
4 participants
participants (4)
-
Alexandr Krivulya -
Artyom Lukianov -
Roy Golan -
zhangjian2011