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Which caching mode brings best IO performance for KVM virtualization?
Hi guys,
Which caching mode brings best IO performance for KVM virtualization?
Which one you recommend to use for production?
Thank you.
KVM caching modes
- Which one brings best IO performace and you recommend to use for production?12 votes
- writethrough  8.33%
- writeback25.00%
- none58.33%
- unsafe  8.33%
Comments
If you want the best performance "unsafe". However, you shouldn't use this in production.
The only one that works for migrations is a blank setting "" or (none) [Default]
You can find more information here: https://libvirt.org/formatdomain.html#elementsDevices