[pve-devel] RedHat KVM Performance Opt.

[Alexandre DERUMIER]

Hi Stephan,

Thanks for the info,I already know about this doc. :)


for example: 
>> Activate Transparent Huge Pages (OpenVZ has it disabled since 042stab053.5) 


I see that, hopefully we use vzkernel-2.6.32-042stab049.6.src.rpm for the moment. 
Don't know why openvz disable it with last release ? 




>> vhost_net device should be default for network stuff 
already done :) 


>> echo 1 > /proc/sys/net/ipv4/conf/all/arp_filter 
not done. Don't know the meaning of arp_filter. 


>> libvirt xml: ... cache='none' io='native' per block device 
already done :) 


Things that's also missing is cpu pinning and numa affinity. 

-Alexandre

----- Mail original ----- 

De: "Stefan Priebe" <s.priebe at profihost.ag> 
À: pve-devel at pve.proxmox.com 
Envoyé: Vendredi 6 Avril 2012 20:39:38 
Objet: [pve-devel] RedHat KVM Performance Opt. 

Hi, 

today i found this paper from redhat regarding performance optimizations 
for KVM. 

As proxmox is based on the OpenVZ Kernel which is based on the RH 6 
Kernel it should match the stuff desribed here. 

Can we perhaps rent some if the settings from here: 
http://www.linux-kvm.org/wiki/images/5/59/Kvm-forum-2011-performance-improvements-optimizations-D.pdf 

for example: 
Activate Transparent Huge Pages (OpenVZ has it disabled since 042stab053.5) 
vhost_net device should be default for network stuff 
echo 1 > /proc/sys/net/ipv4/conf/all/arp_filter 
libvirt xml: ... cache='none' io='native' per block device 

Greets 
Stefan 
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	Alexandre D erumier 
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