Xen Project for ARM Servers

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Xen is an open-source type-1 hypervisor that has been ported to run on ARM architecture. The port started in 2011 and ARM Holdings joined the Xen Project in 2013. Xen has a small code base, strong security features, and powers many large cloud computing installations. It is widely used in Linux distributions for ARM64 systems.

Software

Xen on ARM
Stefano Stabellini - 23 September 2015

© 2013 Citrix | Confidential – Do Not Distribute
© 2015 Citrix
GPLv2
A Linux
Foundation
collaborative
project
a type-1
hypervisor
port to ARM started in Nov 2011
ARM Holding joined Xen Project in 2013
Powers the largest clouds
in production
small
code base
more than 10M
individual users
strong security
process
stable trees
maintained for
years

© 2013 Citrix | Confidential – Do Not Distribute
Xen Project growth
© 2015 Citrix
Contributors Commits

© 2013 Citrix | Confidential – Do Not Distribute
Xen on ARM: uniqueness and strengths
● Security
● small surface of attack
● fewer lines of code = fewer bugs
● Isolation, Disaggregation and Partitioning
● No Emulation, No QEMU
● faster and more secure
● Clean Architecture
● good match for ARM
● small code base on ARM (⅙ of Xen x86 code, less than 100K LOC overall)
© 2015 Citrix

© 2013 Citrix | Confidential – Do Not Distribute
Status
Next release, Xen 4.6, ext. the 9th of October
Readiness:
● EFI guest and host support
● ACPI support (Linaro is working on it, targetting later this year)
● 64K and 4K pages support
● new hardware and platform support
● all main features are present
© 2015 Citrix

© 2013 Citrix | Confidential – Do Not Distribute
Strong Performance

© 2013 Citrix | Confidential – Do Not Distribute
Xen on ARM Availability
All major distros for ARM64 ship with Xen
© 2015 Citrix
Project Raisin
Xen Project’s DevStack

© 2013 Citrix | Confidential – Do Not Distribute
Make Xen the best hypervisor for OpenStack
© 2015 Citrix

© 2013 Citrix | Confidential – Do Not Distribute
Xen and OpenStack
© 2015 Citrix

© 2013 Citrix | Confidential – Do Not Distribute
Xen and OpenStack
Xen via Libvirt is in Group B
● everything works out of the box
● one config option away from the default: LIBVIRT_TYPE=xen
● Tempest runs and all tests pass
● The Xen Project CI-loop is up and running
● checkout http://jenkins.openstack.xenproject.org
● The Xen Project CI-loop has voting rights
Next step: Group A!
© 2015 Citrix

© 2013 Citrix | Confidential – Do Not Distribute
CentOS Virtualization SIG
Virt “Special Interest Group” members: Xen, oVirt, Docker
Xen and Libvirt are available on CentOS 7 ARM64
● yum install centos-release-xen
● yum install xen libvirt
● reboot
© 2015 Citrix

© 2013 Citrix | Confidential – Do Not Distribute
More information
● http://www.xenproject.org
● Xen on ARM @wiki.xenproject.org http://goo.gl/FKNXe
● Xen on ARM whitepaper http://goo.gl/vWMn7D
● http://lists.xenproject.org/mailman/listinfo/xen-devel
© 2015 Citrix

© 2013 Citrix | Confidential – Do Not Distribute
Work better. Live Better.
Citrix
© 2014 Citrix

© 2013 Citrix | Confidential – Do Not Distribute
Parking Lot

© 2013 Citrix | Confidential – Do Not Distribute
type-1
hypervisor
GPLv2
“the gears of the cloud”
port to ARM started in Nov 2011
a 10 years old
hypervisor
small code base
10 million
individual users
powers the largest
clouds in production
A Linux Foundation
collaborative project
ARM Holding
joined Xen Project
in Dec 2013
© 2015 Citrix

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Conference: Engage2024 in Antwerp Type: Workshop Speakers: Florian Vogler, Henning Kunz, Christoph Adler Title: Navigating the Future with The Hitchhiker's Guide to Notes and Domino 14 Abstract: Embark on an exhilarating journey with industry trailblazers Florian Vogler, Henning Kunz, and Christoph Adler in this not-to-be-missed workshop at the forefront of the tech universe. Get ready for a thrilling kick-off as we navigate the current state of the HCL universe, setting the stage for an exploration of the groundbreaking Notes and Domino 14. Discover the latest enhancements and revolutionary features that will redefine your experience. In this interactive session, unlock a treasure trove of tips and tricks to elevate your utilization of version 14, both with and without the game-changing panagenda MarvelClient. Brace yourself for also diving into Nomad, Nomad Web, and VoltMX, expanding your horizons in the expansive HCL landscape. Be a part of this exclusive opportunity to stay ahead in the ever-evolving world of HCL technologies. Your journey to mastering Notes and Domino 14 begins here. And remember, in the spirit of intergalactic exploration, don't forget to bring your towel!

W01_panagenda_Navigating-the-Future-with-The-Hitchhikers-Guide-to-Notes-and-D...

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Data spaces in distributed environments should be allowed to evolve in agile ways providing data space owners with large flexibility about which data they store. Agility and heterogeneity, however, jeopardize data exchanges because representations may build on varying ontologies and data consumers may not rely on the semantic correctness of their queries in the context of semantically heterogeneous, evolving data spaces. Graph data spaces are one example of a powerful model for representing and querying data whose semantics may change over time. To assert and enforce conditions on individual graph data spaces, shape languages (e.g SHACL) have been developed. We investigate the question of how querying and programming can be guarded by reasoning over SHACL constraints in a distributed setting and we sketch a picture of how a future landscape based on semantically heterogeneous data spaces might look like.

Shapes for Sharing between Graph Data Spaces - and Epistemic Querying of RDF-...

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Modeling languages are generally applied for developing systems and software – both internally, with domain-specific languages, and with standardized languages targeting a general purpose and a wide audience. Way too often these languages are weakly created and defined leading to poor quality: Language definitions tend to contain errors and inconsistencies; notations do not recognize the communication and problem-solving needs of humans; standardization organizations push exchange formats that do not fully work and offer certificates that do not measure mastery of the language. We describe common problems in language development and point them out with examples from known cases. To overcome these problems, we suggest several solutions to improve language development, including using modeling languages specifically designed to define modeling languages, continuous testing and prototyping, and keeping language users in the loop.

What Goes Wrong with Language Definitions and How to Improve the Situation

Juha-Pekka Tolvanen

WSO2CON2024 - It's time to go Platformless

WSO2

This presentation covers the following topics: What is logging? The purpose of logging: Debugging The purpose of logging: Security The purpose of logging: Stats & analytics Traditional logging Traditional logging: Advantages Traditional logging: Disadvantages The solution: Large-scale logging Large-scale logging: Core principles Large-scale logging: Solution types Large-scale logging: Cloud vs on-prem Large-scale logging: Operational complexity Large-scale logging: Security Large-scale logging: Costs Large-scale logging: On-prem comparison - Elasticsearch - Grafana Loki - VictoriaLogs On-prem comparison: Setup and operation On-prem comparison: Costs On-prem comparison: Full-text search support On-prem comparison: How to efficiently query 100TB of logs? On-prem comparison: Integration with CLI tools VictoriaLogs for large-scale logging VictoriaLogs demo instance - Ingestion rate: 3600 messages / minute - The number of log messages: 1.1 billion - Uncompressed log messages’ size: 1.5TB - Compressed log messages’ size: 23GB - Compression ratio: 47x - Memory usage: 150MB VictoriaLogs CLI integration demo - Which errors have occurred in all the apps during the last hour? - How many errors have occurred during the last hour? - Which apps generated the most of errors during the last hour? - The number of per-minute errors for the last 10 minutes - Status codes for the last hour - Non-200 status codes for the last week - Top client IPs for the last 4 weeks with 404 and 500 response status codes - Per-month stats for the given IP across all the logs Large-scale logging solution MUST provide excellent CLI integration VictoriaLogs: (temporary) drawbacks VictoriaLogs: Recap - Easy to setup and operate - The lowest RAM usage and disk space usage (up to 30x less than Elasticsearch and Grafana Loki) - Fast full-text search - Excellent integration with traditional command-line tools for log analysis - Accepts logs from popular log shippers (Filebeat, Fluentbit, Logstash, Vector, Promtail, Grafana Agent) - Open source and free to use!

Large-scale Logging Made Easy: Meetup at Deutsche Bank 2024

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Xen Project for ARM Servers

1. Xen on ARM Stefano Stabellini - 23 September 2015

2. © 2013 Citrix | Confidential – Do Not Distribute © 2015 Citrix GPLv2 A Linux Foundation collaborative project a type-1 hypervisor port to ARM started in Nov 2011 ARM Holding joined Xen Project in 2013 Powers the largest clouds in production small code base more than 10M individual users strong security process stable trees maintained for years

4. © 2013 Citrix | Confidential – Do Not Distribute Xen on ARM: uniqueness and strengths ● Security ● small surface of attack ● fewer lines of code = fewer bugs ● Isolation, Disaggregation and Partitioning ● No Emulation, No QEMU ● faster and more secure ● Clean Architecture ● good match for ARM ● small code base on ARM (⅙ of Xen x86 code, less than 100K LOC overall) © 2015 Citrix

5. © 2013 Citrix | Confidential – Do Not Distribute Status Next release, Xen 4.6, ext. the 9th of October Readiness: ● EFI guest and host support ● ACPI support (Linaro is working on it, targetting later this year) ● 64K and 4K pages support ● new hardware and platform support ● all main features are present © 2015 Citrix

8. OpenStack

11. © 2013 Citrix | Confidential – Do Not Distribute Xen and OpenStack Xen via Libvirt is in Group B ● everything works out of the box ● one config option away from the default: LIBVIRT_TYPE=xen ● Tempest runs and all tests pass ● The Xen Project CI-loop is up and running ● checkout http://jenkins.openstack.xenproject.org ● The Xen Project CI-loop has voting rights Next step: Group A! © 2015 Citrix

12. Demo

13. © 2013 Citrix | Confidential – Do Not Distribute CentOS Virtualization SIG Virt “Special Interest Group” members: Xen, oVirt, Docker Xen and Libvirt are available on CentOS 7 ARM64 ● yum install centos-release-xen ● yum install xen libvirt ● reboot © 2015 Citrix

14. © 2013 Citrix | Confidential – Do Not Distribute More information ● http://www.xenproject.org ● Xen on ARM @wiki.xenproject.org http://goo.gl/FKNXe ● Xen on ARM whitepaper http://goo.gl/vWMn7D ● http://lists.xenproject.org/mailman/listinfo/xen-devel © 2015 Citrix

15. Questions?

18. © 2013 Citrix | Confidential – Do Not Distribute type-1 hypervisor GPLv2 “the gears of the cloud” port to ARM started in Nov 2011 a 10 years old hypervisor small code base 10 million individual users powers the largest clouds in production A Linux Foundation collaborative project ARM Holding joined Xen Project in Dec 2013 © 2015 Citrix

Xen Project for ARM Servers

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