Eliminating receive livelock in an interrupt-driven kernel
ACM Transactions on Computer Systems (TOCS)
Xen and the art of virtualization
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
A comparison of software and hardware techniques for x86 virtualization
Proceedings of the 12th international conference on Architectural support for programming languages and operating systems
QEMU, a fast and portable dynamic translator
ATEC '05 Proceedings of the annual conference on USENIX Annual Technical Conference
Unmodified device driver reuse and improved system dependability via virtual machines
OSDI'04 Proceedings of the 6th conference on Symposium on Opearting Systems Design & Implementation - Volume 6
Optimizing network virtualization in Xen
ATEC '06 Proceedings of the annual conference on USENIX '06 Annual Technical Conference
ALS '01 Proceedings of the 5th annual Linux Showcase & Conference - Volume 5
Concurrent Direct Network Access for Virtual Machine Monitors
HPCA '07 Proceedings of the 2007 IEEE 13th International Symposium on High Performance Computer Architecture
Scheduling I/O in virtual machine monitors
Proceedings of the fourth ACM SIGPLAN/SIGOPS international conference on Virtual execution environments
virtio: towards a de-facto standard for virtual I/O devices
ACM SIGOPS Operating Systems Review - Research and developments in the Linux kernel
Bridging the gap between software and hardware techniques for I/O virtualization
ATC'08 USENIX 2008 Annual Technical Conference on Annual Technical Conference
Software techniques to improve virtualized I/O performance on multi-core systems
Proceedings of the 4th ACM/IEEE Symposium on Architectures for Networking and Communications Systems
Achieving 10 Gb/s using safe and transparent network interface virtualization
Proceedings of the 2009 ACM SIGPLAN/SIGOPS international conference on Virtual execution environments
Virtualization polling engine (VPE): using dedicated CPU cores to accelerate I/O virtualization
Proceedings of the 23rd international conference on Supercomputing
The multikernel: a new OS architecture for scalable multicore systems
Proceedings of the ACM SIGOPS 22nd symposium on Operating systems principles
Getting 10 Gb/s from Xen: safe and fast device access from unprivileged domains
Euro-Par'07 Proceedings of the 2007 conference on Parallel processing
IsoStack: highly efficient network processing on dedicated cores
USENIXATC'10 Proceedings of the 2010 USENIX conference on USENIX annual technical conference
SplitX: split guest/hypervisor execution on multi-core
WIOV'11 Proceedings of the 3rd conference on I/O virtualization
VAMOS: virtualization aware middleware
WIOV'11 Proceedings of the 3rd conference on I/O virtualization
ELI: bare-metal performance for I/O virtualization
ASPLOS XVII Proceedings of the seventeenth international conference on Architectural Support for Programming Languages and Operating Systems
Adding advanced storage controller functionality via low-overhead virtualization
FAST'12 Proceedings of the 10th USENIX conference on File and Storage Technologies
Towards exitless and efficient paravirtual I/O
Proceedings of the 5th Annual International Systems and Storage Conference
I/o paravirtualization at the device file boundary
Proceedings of the 19th international conference on Architectural support for programming languages and operating systems
ClickOS and the art of network function virtualization
NSDI'14 Proceedings of the 11th USENIX Conference on Networked Systems Design and Implementation
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The most popular I/O virtualization method today is paravirtual I/O. Its popularity stems from its reasonable performance levels while allowing the host to interpose, i.e., inspect or control, the guest's I/O activity. We show that paravirtual I/O performance still significantly lags behind that of state-of-the-art noninterposing I/O virtualization, SRIOV. Moreover, we show that in the existing paravirtual I/O model, both latency and throughput significantly degrade with increasing number of guests. This scenario is becoming increasingly important, as the current trend of multi-core systems is towards an increasing number of guests per host. We present an efficient and scalable virtual I/O system that provides all of the benefits of paravirtual I/O. Running host functionality on separate cores dedicated to serving multiple guest's I/O combined with a fine-grained I/O scheduling and exitless notifications our I/O virtualization system provides performance which is 1.2×-3× better than the baseline, approaching and in some cases exceeding non-interposing I/O virtualization performance.