IOV hardware and software plumbing for VMware ESX - journey to uncompromised I/O Virtualization and Convergence


One Line Summary

Integration of VMware ESX para-virtual and passthru I/O "plumbing", 10GbE IOV, and protocol acceleration.


The dominant trends for I/O “plumbing” in datacenter and cloud are I/O virtualization, I/O fabric convergence, and network/storage/security protocol acceleration.
These trends are not always complimentary. As applications migrate from dedicated servers to virtual machines, they often lose many customary features and performance guarantees. Improving hardware and software I/O support in hypervisors started to bridge this gap, with much still to be done.
The talk will cover the following:
- use of hardware IOV and drivers to provide guaranteed SLA and isolation to multiple “tenants” sharing VMware ESX I/O.
- use of ESX 4.x VMDirectPath (passthru) to recover the cost of I/O para-virtualization.
- mechanisms for delivering network/storage/security hardware acceleration to guest OSes running in ESX and other hypervisors.


VMware, storage, performance, IOV, network, 10GbE, iSCSI, convergence


  • Biography

    Leonid has over 20 years of experience in networking and system software development.
    He works at Exar Corporation as a VP of Software Engineering for 10GbE Server and Storage products.

    Before joining Exar Corp, Leonid was a Founder of Neterion, a Silicon Valley venture-backed startup founded in 2001 and acquired by Exar in 2010.

    Prior to Neterion, Leonid worked in SiliconValley since early 90’s for Advanced Micro Devices, Alteon WebSystems, and Nortel Networks in various development and managerial positions.

    Leonid presented in the past at Ottawa Linux Symposium, Xen Summit, VMWorld and other conferences on topics related to hardware and software I/O virtualization, 10GbE tecnologies, and network and storage hardware accelerators.

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