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SUMMARY:The Demikernel OS Architecture for Kernel-Bypass\, Microsecond Sys
 tems - Irene Zhang\, Microsoft Research
DTSTART:20211104T150000Z
DTEND:20211104T160000Z
UID:TALK163270@talks.cam.ac.uk
CONTACT:Srinivasan Keshav
DESCRIPTION:Datacenter systems and I/O devices now run at single-digit mic
 rosecond latencies\, requiring ns-scale operating systems. Traditional ker
 nel-based operating systems impose an unaffordable overhead\, so recent ke
 rnel-bypass OSes and libraries eliminate the OS kernel from the I/O datapa
 th. However\, none of these systems offer a general-purpose datapath OS re
 placement that meet the needs of µs-scale systems. We propose Demikernel\
 , a flexible datapath OS and architecture designed for heterogenous kernel
 -bypass devices and µs-scale datacenter systems. We build two prototype D
 emikernel OSes and show that minimal effort is needed to port existing µs
 -scale systems. Once ported\, Demikernel lets applications run across hete
 rogenous kernel-bypass devices\nwith ns-scale overheads and no code change
 s.\n\nBio: \nI am a researcher at Microsoft Research. My research focuses 
 on datacenter operating systems and distributed systems. I am especially i
 nterested in making it easier to build microsecond-scale datacenter system
 s by leveraging new datacenter hardware technologies\, like kernel-bypass\
 , RDMA and programmable devices. My most recent work has been on the Demik
 ernel datapath OS and related projects. A bio and talk abstract for my mos
 t recent work is available. I completed my PhD in 2017 at the University o
 f Washington\, where my research focused on distributed systems that span 
 mobile devices and cloud servers. My thesis work received the ACM SIGOPS D
 ennis Ritchie doctoral dissertation award and the UW Allen School William 
 Chan doctoral dissertation award. Before my PhD\, I received my S.B. and M
 .Eng. from MIT and worked for 3 years in the virtual machine monitor group
  at VMware.
LOCATION:FW11 and https://cl-cam-ac-uk.zoom.us/j/97216272378?pwd=M2diTFhMT
 nppckJtNWhFVTBKK0REZz09
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