[pve-devel] [PATCH] memory hotplug patch v6

Alexandre DERUMIER aderumier at odiso.com
Wed Jan 21 08:35:58 CET 2015


>>Assuming that each socket defines a separate NUMA node? I thought 
>>we can do: 
>>
>>$node = $i % $number_of_numa_nodes; 

Yes ;) (sorry, don't have sleep too much ;)




----- Mail original -----
De: "dietmar" <dietmar at proxmox.com>
À: "aderumier" <aderumier at odiso.com>
Cc: "Daniel Hunsaker" <danhunsaker at gmail.com>, "pve-devel" <pve-devel at pve.proxmox.com>
Envoyé: Mercredi 21 Janvier 2015 08:24:23
Objet: Re: [pve-devel] [PATCH] memory hotplug patch v6

> I think we can also add numa nodes in the mapping, 
> like this; 
> 
> 
> #!/usr/bin/perl 
> 
> use strict; 
> use warnings; 
> 
> my $dimm_id = 0; 
> my $current_size = 0; 
> my $dimm_size = 128; 
> my $sockets = 4; 
> 
> my $node = 0; 
> 
> for (my $j = 0; $j < 16; $j++) { 
> for (my $i = 0; $i < 16; $i++) { 
> my $name = "dimm${dimm_id}"; 
> $dimm_id++; 
> $current_size += $dimm_size; 
> my $per = (100*$dimm_size)/$current_size; 
> if($node < $sockets-1) { 
> $node++; 
> }else { 
> $node = 0; 
> } 
> printf ("%10s %10d %10d %10.2f %d\n", $name, $dimm_size, 
> $current_size, $per, $node); 
> } 
> $dimm_size *= 2; 
> } 

Assuming that each socket defines a separate NUMA node? I thought 
we can do: 

$node = $i % $number_of_numa_nodes; 


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