Comparison of Open Source Virtualization Technology

Fernando Laudares Camargos Gabriel Girard Benoit des Ligneris, Ph. D. [email_address] Comparative study of Open Source virtualization & contextualization technologies

Context (1) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Context (2) ,[object Object],[object Object]

Why virtualize the server infrastructure (1) ? Server consolidation is the most mentionned argument

Why virtualize the server infrastructure (2) ? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Virtualization technologies (1)

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Xen Linux-VServer OpenVZ KVM VirtualBox KQEMU Virtualization technologies (2)

[object Object],QEMU is an emulator Virtualization technologies (3)

Virtualization technologies (4) Virtualization technologies partial emulation no emulation KQEMU KVM VirtualBox OpenVZ Xen (Linux) Linux-VServer

2 types of hypervisors: ,[object Object],[object Object],Virtualization technologies (5)

The experiments (1) virtualization layer overhead But of how much ? To discover, we need to mesure the efficiency of the virtualization technologies efficiency = performance + scalability where :

[object Object],[object Object],2 types of experiments: The experiments (2)

Virtualization solutions evaluated in this study ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],The experiments (3)

[object Object],[object Object],[object Object],[object Object],Bits & Bytes & VMs : The experiment (4)

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Methodology : The experiments – Performance (1)

[object Object],[object Object],Compilation of the Linux kernel tar xvzf linux-XXX.tar.gz cd linux-XXX make defconfig # ("New config with default answer to all options") --- date +%s.%N && make && date +%s.%N ... make clean date +%s.%N && make && date +%s.%N ... 3x The experiments – Performance (2)

The experiments – Performance (3)

[object Object],[object Object],[object Object],Bzip2 cd /var/tmp cp /home/fernando/Iso/ubuntu-6.06.1-server-i386.iso . date +%s.%N && bzip2 -9 ubuntu-6.06.1-server-i386.iso && date +%s.%N rm ubuntu-6.06.1-server-i386.iso.bz2 ... 4x The experiments – Performance (4)

[object Object],[object Object],[object Object],[object Object],Dbench /usr/local/bin/dbench -t 300 -D /var/tmp 100 # 4x The experiments – Performance (6)

* no results for VirtualBox The experiments – Performance (7)

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],dd ... dd if=/opt/iso/ubuntu-6.06.1-server-i386.iso of=/var/tmp/out.iso ... dd if=/dev/zero of=/dev/null count=117187560 # 117187560 = 60G ... rm -fr /var/tmp/* # between execution sets ... The experiments – Performance (8)

* no results for KQEMU nor VirtualBox The experiments – Performance (9)

* no results for KQEMU nor VirtualBox The experiments – Performance (10)

[object Object],[object Object],[object Object],Netperf netserver # in the server .. netperf -H <nom du serveur> # in the client, 4x The experiments – Performance (11)

[object Object],[object Object],[object Object],[object Object],[object Object],Rsync .. date +%s.%N && rsync -av <server>::kernel /var/tmp && date +%s.%N ... date +%s.%N && rsync -av <server>::iso /var/tmp && date +%s.%N ... rm -fr /var/tmp/* # between execution sets ... The experiments – Performance (13)

[object Object],[object Object],[object Object],Sysbench sysbench --test=oltp --mysql-user=root --mysql-host=localhost --debug=off prepare # (1x) sysbench --test=oltp --mysql-user=root --mysql-host=localhost --debug=off run # (4x) O n- L ine T ransaction P rocessing OLTP test statistics: queries performed: read: 140000 write: 50000 other: 20000 total: 210000 transactions: 10000 ( 376.70 per sec. ) deadlocks: 0 (0.00 per sec.) read/write requests: 190000 (7157.28 per sec.) other operations: 20000 (753.40 per sec.) The experiments – Performance (16)

Conclusion : ,[object Object],[object Object],[object Object],The experiments – Performance (18)

Conclusion (cont) : ,[object Object],[object Object],[object Object],The experiments – Performance (19)

[object Object],[object Object],[object Object],[object Object],[object Object],Methodology: * 1536 Mb (KQEMU) The experiments – Scalability (1)

The experiments – Scalability (2)

Conclusion : ,[object Object],[object Object],[object Object],[object Object],[object Object],Conclusion - Scalability (1)

[object Object],[object Object],[object Object],[object Object],Conclusion – Scalability (2)

Which technology to use in each case ? A technological point of view ... ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],Conclusion : Which technology to use in each case ?

[object Object],[object Object],[object Object],[object Object],Future / contextualisation

Comparison of Open Source Virtualization Technology

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Comparison of Open Source Virtualization Technology