Faster and Smaller qcow2 Files With Subcluster based Allocation (KVM Forum 2020)
Channel: Igalia
Date: 2022-03-15

Alberto Garcia at KVM Forum 2020, following up on a 2017 talk at KVM,  discussing Igalia's work, the file format and speed 

Slieds available at: https://www.slideshare.net/igalia/faster-and-smaller-qcow2-files-with-subclusterbased-allocation