Re: [ovirt-users] CPU Threads Help!!!
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" To: users@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@ovirt.org http://lists.ovirt.org/mailman/listinfo/users . ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] CPU Threads Help!!!
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" >> To: users@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. ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] CPU Threads Help!!!
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" To: users@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@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] CPU Threads Help!!!
Can you please provide output of lscpu for your host please. Thanks - Original Message - From: "zhangjian2011" To: users@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@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[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@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
