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Questions tagged [affinity]

31 questions
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What does cpu-pinning mean in context of KVM hypervisor with multiple virtual machines

I am looking at configuring a KVM hypervisor to have some virtual machines. THe KVM hypervisor has 8 physical cores (16 with HyperThreading). I want to create 8 virtual machines on it but I am not able to understand what difference will cpu-pinning…
Akshya11235
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Linux interrupt affinity

We have a HP DL980 running SuSE Linux Enterprise Server 11 sp2. The machine hosts a PCIe digital IO card which is used to send a clock signal to sychronise with other machines. If we do a top, one of the processes shows with the 'command'…
JRT
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Smss.exe - setting any core affinity breaks rdp on Windows 7 / Windows Server 2012

I have tried to set core affinity of smss.exe to not run on one critical core on Windows 7 and Windows Server 2008r2. It turns out that simply setting the core affinity to anything (even the full mask that smss.exe already has) seems to work but…
Hetman
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cset as non-root to set cpu affinity for running processes

I've been playing with cset to set cpu affinity for running processes. I'm recreating the built-in "shield" function manually with set and proc, to add some subsets for specific threads of my application. I have a bash script that is calling cset to…
RaveTheTadpole
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How to properly configure ESX VMs to use hyper threading in a usefull way?

I've a kind of specific question that I was unable to find an answer for in the official documentation of VMware or on some other very useful threads here on this platform, so here it is: I've got a host using ESX 6.0 with 2 sockets, each has 6…
Hutzi
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Anti-Affinity Rules not Enabling in vCenter 6.0

Can anyone please help. I am building a new vCenter with 3 hosts, all running VMWare ESXi 6.0. I currently have about 16-18 VMs created. I have been able to create a number of Affinity and Anti-Affinity rules so far but one rule is just failing to…
mokins
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FreeBSD IRQ Affinity using cpuset. No mather use hexa or dicimal for -l #IRQ parameter?

I just put my FreeBSD 10.2-STABLE router in production running with Quagga 0.99.24.1, compiled throught Ports. After pass all traffic to this machine the load of S.O. been very hight and everything indicates that the problem is IRQ like shows…
Kalil
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Set CPU affinity for all processes of specific user with taskset

I have ubuntu server 14.04, and I'm wondering if there is any easy way to achieve this task. For example, I can already do this for single processes with taskset -pac 2 29435, but is there any way to assign it via username instead of process…
user3794271
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IO does not share in multiple CPU

In my linux server IO doesnot share in multiple CPU. as below output ata_piix intrupts share in only cpu0 [root@manage ~]# uname -a Linux manage 3.14.24-1smp #12 SMP Tue Mar 17 15:33:27 IST 2015 i686 i686 i386 GNU/Linux [root@manage ~]# cat…
user95711
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How to set network interface affinity under Ubuntu Linux?

I have a multihomed linux box with 6 network interfaces that I'm using to run some tests of router hardware. I would like to be able to set "NIC affinity" (for lack of a better term) on an arbitrary process so that even though a destination IP might…
mjbraun
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Irregular interrupts balance in AMD Opetron Quad-Core

I had a problem with CPU7 overload. I found that it was caused by the eth0 interrupts, as you can see on below cat /proc/interrupts. I'm using 2.6.35.2 kernel and Quad-Core AMD Opteron(tm) Processor 2354. I would like that interrupt were supported…
Andrew
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linux, set affinity for init

What is a most convenient way to set affinity mask for init process in linux (debian) on the startup the system? I know about taskset, but i want set affinity mask for init on it's startup, so all processes will inherit it. Thank you.
Boris
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Any way to make program run only on a performance core (P-core)?

I need to run a compiler, and people have previously found that it runs well on a single core. Now that Intel's 12th generation consumer chips have separate P-cores and E-cores, can I somehow tell the compile worker to run specifically on a P-core,…
eccentricOrange
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How to have node affinity in openstack?

For Example, I have 3 Compute servers and I want to have 1 Specific Instance on each of them and I want to have Node Affinity on them. instance_1 --> compute_node_1 (Always on this node) instance_2 --> compute_node_2 (Always on this…
Milad Jahandideh
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Pod stuck in pending state due to pod affinity/anti-affinity

I have a problem, one of the replicas is stuck in a Pending state. Problem: After another deployment one of the new replicas stacked and I have an empty node which satisfy all necessary requronmetns. Deployment contains nodeSelector and affinity…
Thunderbird
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