[pve-devel] pve-kernel package : add irqbalance as recommended ? (like debian linux-image package)

[Alexandre DERUMIER]

>>I still don't get it - why does it require a daemon to set static values like 
>>io-scheduler? 

I think it's doing more than that, including power management detection and change on the fly based on statistics

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Power_Management_Guide/Tuned.html

(But for a server, it's useless.  Static values are enough)


----- Mail original -----
De: "dietmar" <dietmar at proxmox.com>
À: "aderumier" <aderumier at odiso.com>, "pve-devel" <pve-devel at pve.proxmox.com>
Cc: "Stefan Priebe" <s.priebe at profihost.ag>
Envoyé: Samedi 20 Février 2016 11:19:52
Objet: Re: [pve-devel] pve-kernel package : add irqbalance as recommended ? (like debian linux-image package)

> tuned tool from redhat is just for tunning kernel params, cpu gouvernor, 
> ioscheduler, ... from profiles (high-bandwith vs low latency for example) 
> 
> It's not related to ksm. 
> 
> you can find details about the profils and tuning values here : 
> 
> https://videos.cdn.redhat.com/summit2015/presentations/11952_performance-tuning-red-hat-enterprise-linux-platform-for-databases.pdf 
> 
> (page 8). 
> 
> 
> Could be great to have something similar in proxmox. (should be east to 
> implement), choosing in gui for each server, presets of tuning. 

I still don't get it - why does it require a daemon to set static values like 
io-scheduler? 

> BTW, I have redone a lot of tests with transparent hugepage and last kernels, 
> it seem to works fine with default MADVISE. 
> I have done tests with a lot of databases, redis, mongo and I don't have seen 
> any regression, and some boost with java application 

great