Xen Project Release Features: Difference between revisions

From Xen
Jump to navigationJump to search
(Add categories)
(Added Xen 4.2)
Line 3: Line 3:
!style="width: 20%;"|Xen 4.0
!style="width: 20%;"|Xen 4.0
!style="width: 20%;"|Xen 4.1
!style="width: 20%;"|Xen 4.1
!style="width: 20%;"|Xen 4.2 (Testing)
|-
|-
|Initial Release
|Initial Release
|7 April 2010
|7 April 2010
|25 March 2011
|25 March 2011
|TBD
|-
|-
!colspan="3"|<big>Host Limits</big>
!colspan="4"|<big>Host Limits</big>
|-
|-
|Physical CPUs
|Physical CPUs
|128 <sup>[ [[#Foot0|0]] ]</sup>
|128 <sup>[ [[#Foot0|0]] ]</sup>
|>255
|>255
|4095
|-
|-
|RAM
|RAM
|1TB
|1TB
|5TB
|5TB
|5TB
|-
|-
!colspan="3"|<big>[[Xen Overview#Guest_Types|Guest Types]]</big>
!colspan="4"|<big>[[Xen Overview#Guest_Types|Guest Types]]</big>
|-
|-
|Paravirtualised<br/><small>Traditional Xen ''PV'' guest</small>
|Paravirtualised<br/><small>Traditional Xen ''PV'' guest</small>
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|HVM Guest <sup>[ [[#Foot1|1]] ]<br/><small>Fully virtualised guest using hardware virtualisation extensions</small>
|HVM Guest <sup>[ [[#Foot1|1]] ]<br/><small>Fully virtualised guest using hardware virtualisation extensions</small>
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|PV-on_HVM Guest <sup>[ [[#Foot1|1]] ]<br/><small>Fully virtualised guest using PV extensions for improved performance</small>
|PV-on_HVM Guest <sup>[ [[#Foot1|1]] ]<br/><small>Fully virtualised guest using PV extensions for improved performance</small>
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
!colspan="3"|<big>PV Guest Limits</big>
!colspan="4"|<big>PV Guest Limits</big>
|-
|-
|Virtual CPUs
|Virtual CPUs
|128
|128
|>255
|>255
|512
|-
|-
|RAM
|RAM
|512GB
|512GB
|512GB
|512GB
|512GB
|-
|-
!colspan="3"|<big>HVM Guest Limits</big>
!colspan="4"|<big>HVM Guest Limits</big>
|-
|-
|Virtual CPUs
|Virtual CPUs
|128
|128
|128
|128
|256
|-
|-
|RAM
|RAM
|1TB
|1TB
|1TB
|1TB
|1TB
|-
|-
!colspan="3"|<big>Toolstack</big>
!colspan="4"|<big>Toolstack</big>
|-
|-
|xend / xm
|xend / xm
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}<small>deprecated in this release</small>
|-
|-
|[[XL]]
|[[XL]]
|{{HalfDone}}<small>initial implementation</small>
|{{HalfDone}}<small>initial implementation</small>
|{{HalfDone}}<small>preview release</small>
|{{HalfDone}}<small>preview release</small>
|{{Tick}}
|-
|-
!colspan="3"|<big>Features</big>
!colspan="4"|<big>Features</big>
|-
|-
|Live Migration, Save & Restore
|Live Migration, Save & Restore
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|Memory ballooning
|Memory ballooning
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|[[Blktap2]]
|[[Blktap2]]
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|[[Xen PCI Passthrough|PCI Passthrough]]
|[[Xen PCI Passthrough|PCI Passthrough]]
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|[http://oss.oracle.com/projects/tmem/ TMEM] -- Transcendent Memory
|[http://oss.oracle.com/projects/tmem/ TMEM] -- Transcendent Memory
|{{Tick}} <sup>[ [[#Foot2|2]] ]</sup>
|{{Tick}} <sup>[ [[#Foot2|2]] ]</sup>
|{{Tick}} <sup>[ [[#Foot2|2]] ]</sup>
|{{Tick}} <sup>[ [[#Foot2|2]] ]</sup>
|{{Tick}} <sup>[ [[#Foot2|2]] ]</sup>
|-
|-
|gdbsx<br/><small>debugger to debug ELF guests</small>
|gdbsx<br/><small>debugger to debug ELF guests</small>
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
Line 91: Line 110:
|{{HalfDone}}<small>tech preview</small>
|{{HalfDone}}<small>tech preview</small>
|{{HalfDone}}<small>tech preview</small>
|{{HalfDone}}<small>tech preview</small>
|{{HalfDone}}<small>??? needs checking</small>
|-
|-
|Online resize of virtual disks
|Online resize of virtual disks
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|[[Remus]] Fault Tolerance
|[[Remus]] Fault Tolerance
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|Physical CPU Hotplug
|Physical CPU Hotplug
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|Physical Memory Hotplug
|Physical Memory Hotplug
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|Support for PV kernels in bzImage format
|Support for PV kernels in bzImage format
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
Line 115: Line 140:
|
|
|{{HalfDone}}<small>prototype</small>
|{{HalfDone}}<small>prototype</small>
|{{Tick}}<small>???</small>
|-
|-
|1GB/2MB super page support
|1GB/2MB super page support
|
|
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|x86 Advanced Vector eXtension (AVX)
|x86 Advanced Vector eXtension (AVX)
|
|
|{{Tick}} <sup>[ [[#Foot2|2]] ]</sup>
|{{Tick}} <sup>[ [[#Foot2|2]] ]</sup>
|{{Tick}} <sup>[ [[#Foot2|2]] ]</sup>
|-
|-
|cpupool<br/><small>advanced partitioning</small>
|cpupool<br/><small>advanced partitioning</small>
|
|
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|memaccess API<br/><small>enabling integration of 3rd party security solutions into Xen virtualized environments</small>
|memaccess API<br/><small>enabling integration of 3rd party security solutions into Xen virtualized environments</small>
|
|
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|Deliver events to PVHVM guests using event channels
|Deliver events to PVHVM guests using event channels
|
|
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
Line 139: Line 170:
|gPXE
|gPXE
|[http://ipxe.org iPXE]
|[http://ipxe.org iPXE]
|[http://ipxe.org iPXE] ???
|-
|-
|xentrace<br/><small>performance analysis</small>
|xentrace<br/><small>performance analysis</small>
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
Line 147: Line 180:
|
|
|{{Tick}} <sup>[ [[#Foot3|3]] ]</sup>
|{{Tick}} <sup>[ [[#Foot3|3]] ]</sup>
|{{Tick}} <sup>[ [[#Foot3|3]] ]</sup> ???
|-
|-
|[[Xen Security Modules : XSM-FLASK|FLASK]]<br/><small>mandatory access control policy providing fine-grained controls over Xen domains, similar to SELinux</small>
|[[Xen Security Modules : XSM-FLASK|FLASK]]<br/><small>mandatory access control policy providing fine-grained controls over Xen domains, similar to SELinux</small>
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
!colspan="3"|<big>[[PyGrub]]</big>
!colspan="4"|<big>[[PyGrub]]</big>
|-
|-
|Support for GRUB 2
|Support for GRUB 2
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
|Support for /boot on ext4
|Support for /boot on ext4
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|{{Tick}}
|-
|-
!colspan="3"|<big>Third Party</big>
!colspan="4"|<big>Third Party</big>
|-
|-
|[http://libvirt.org libvirt] driver for [[XL]]
|[http://libvirt.org libvirt] driver for [[XL]]
|
|
|{{Tick}}
|{{Tick}}
|{{Tick}}
|}
|}

Revision as of 13:11, 16 August 2012

Xen 4.0 Xen 4.1 Xen 4.2 (Testing)
Initial Release 7 April 2010 25 March 2011 TBD
Host Limits
Physical CPUs 128 [ 0 ] >255 4095
RAM 1TB 5TB 5TB
Guest Types
Paravirtualised
Traditional Xen PV guest 		✓ ✓ ✓
HVM Guest [ 1 ]
Fully virtualised guest using hardware virtualisation extensions 		✓ ✓ ✓
PV-on_HVM Guest [ 1 ]
Fully virtualised guest using PV extensions for improved performance 		✓ ✓ ✓
PV Guest Limits
Virtual CPUs 128 >255 512
RAM 512GB 512GB 512GB
HVM Guest Limits
Virtual CPUs 128 128 256
RAM 1TB 1TB 1TB
Toolstack
xend / xm ✓ ✓ ✓deprecated in this release
XL ✓initial implementation ✓preview release ✓
Features
Live Migration, Save & Restore ✓ ✓ ✓
Memory ballooning ✓ ✓ ✓
Blktap2 ✓ ✓ ✓
PCI Passthrough ✓ ✓ ✓
TMEM -- Transcendent Memory ✓ [ 2 ] ✓ [ 2 ] ✓ [ 2 ]
gdbsx
debugger to debug ELF guests 		✓ ✓ ✓
Memory Sharing ✓tech preview ✓tech preview ✓??? needs checking
Online resize of virtual disks ✓ ✓ ✓
Remus Fault Tolerance ✓ ✓ ✓
Physical CPU Hotplug ✓ ✓ ✓
Physical Memory Hotplug ✓ ✓ ✓
Support for PV kernels in bzImage format ✓ ✓ ✓
Credit 2 Scheduler
designed for latency-sensitive workloads and very large systems. 		✓prototype ✓???
1GB/2MB super page support ✓ ✓
x86 Advanced Vector eXtension (AVX) ✓ [ 2 ] ✓ [ 2 ]
cpupool
advanced partitioning 		✓ ✓
memaccess API
enabling integration of 3rd party security solutions into Xen virtualized environments 		✓ ✓
Deliver events to PVHVM guests using event channels ✓ ✓
HVM PXE Stack gPXE iPXE iPXE ???
xentrace
performance analysis 		✓ ✓ ✓
qemu based disk backend (qdisk) for XL
 ✓ [ 3 ] ✓ [ 3 ] ???
FLASK
mandatory access control policy providing fine-grained controls over Xen domains, similar to SELinux 		✓ ✓ ✓
PyGrub
Support for GRUB 2 ✓ ✓ ✓
Support for /boot on ext4 ✓ ✓ ✓
Third Party
libvirt driver for XL ✓ ✓

[ 0 ] Compile time limit, can be increased
[ 1 ] Requires hardware virtualisation support
[ 2 ] Disabled by default (enable with hypervisor command line option)
[ 3 ] Used as a fallback if blkback and/or blktap2 are not available

Retrieved from "https://wiki.xenproject.org/index.php?title=Xen_Project_Release_Features&oldid=4820"