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SUMMARY:My VM is Lighter (and Safer) than your Container - Felipe Huici (N
 EC Laboratories Europe)
DTSTART:20180308T150000Z
DTEND:20180308T160000Z
UID:TALK99157@talks.cam.ac.uk
CONTACT:Liang Wang
DESCRIPTION:Containers are in great demand because they are lightweight wh
 en compared to virtual machines. On the downside\, containers offer weaker
  isolation than VMs\, to the point where people run containers in virtual 
 machines to achieve proper isolation. In this talk\, we examine whether th
 ere is indeed a strict tradeoff  between isolation (VMs) and efficiency (c
 ontainers). We  find that VMs can be as nimble as containers\, as long as 
 they are small and the toolstack is fast enough.\nWe achieve lightweight V
 Ms by using unikernels for specialized applications and with Tinyx\, a too
 l that enables creating tailor-made\, trimmed-down Linux virtual machines.
  By themselves\, lightweight virtual machines are not enough to ensure goo
 d performance since the virtualization control plane (the toolstack) becom
 es the performance bottleneck. We present LightVM\, a new virtualization s
 olution based on Xen that is optimized to offer fast boot-times regardless
  of the number of active VMs. LightVM features a complete redesign of Xen
 ’s control plane\, transforming its centralized operation to a distribut
 ed one where interactions with the hypervisor are reduced to a minimum. Li
 ghtVM can boot a VM in 2.3ms\, comparable to fork/exec on Linux (1ms)\, an
 d two orders of magnitude faster than Docker. LightVM can pack thousands o
 f LightVM guests on modest hardware with memory and CPU usage comparable t
 o that of processes.\n\nBio: I’m a chief researcher in the Systems and M
 achine Learning Group at NEC Laboratories Europe in Heidelberg\, Germany. 
 My main research and work interests lie in the areas of high-performance s
 oftware systems\, and in particular specialization\, virtualization\, and 
 the application of machine learning techniques to tackle open problems in 
 the systems area. Previously\, I received an undergraduate degree with hon
 ours from the University of Virginia\, a Masters in Data Communications\, 
 Networks and Distributed Systems from University College London (top of th
 e class)\, and a Ph.D. also from UCL. I have published on several top-tier
  conferences and journals such as SOSP\, SIGCOMM\, NSDI\, CoNEXT\, and SIG
 COMM CCR and regularly act as TPC member of conferences and journals such 
 as IMC \,INFOCOM\, CoNEXT\, ANCS and SIGCOMM CCR.
LOCATION:FW26\, Computer Laboratory\, William Gates Building
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