• Architecture
• Architecture
• High-level Features
• Disaster Recovery
• High-Availability
• Xapi Storage Migration
• Rolling Pool Upgrade
• vGPU
• Snapshots
• Backtrace support
• Xapi
• Xapi Overview
• Xapi architecture
• Host memory accounting
• Xenopsd
• Xenopsd overview
• Features
• Architecture
• Xenopsd roadmap
• Events
• Tasks
• Requirements for suspend image framing
• Suspend image framing format
• Walkthrough: Starting a VM
• Squeezed
• Squeezed overview
• Squeezed architecture
• Squeezed design

• ids rather than data; inherently coalescable
• blocking poll + async operations implies a client needs 2 connections
• coarse granularity
• similarity and differences with: XenAPI, event channels, xenstore watches

https://github.com/xapi-project/xen-api/blob/30cc9a72e8726d1e7501cd01ddb27ced6d53b9be/ocaml/xapi/xapi_xenops.ml#L1467