Efficient software-based fault isolation
SOSP '93 Proceedings of the fourteenth ACM symposium on Operating systems principles
Extensibility safety and performance in the SPIN operating system
SOSP '95 Proceedings of the fifteenth ACM symposium on Operating systems principles
Dealing with disaster: surviving misbehaved kernel extensions
OSDI '96 Proceedings of the second USENIX symposium on Operating systems design and implementation
The Flux OSKit: a substrate for kernel and language research
Proceedings of the sixteenth ACM symposium on Operating systems principles
Xen and the art of virtualization
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
Improving the reliability of commodity operating systems
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
Capriccio: scalable threads for internet services
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
Memory resource management in VMware ESX server
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
Diagnosing performance overheads in the xen virtual machine environment
Proceedings of the 1st ACM/USENIX international conference on Virtual execution environments
MINIX 3: a highly reliable, self-repairing operating system
ACM SIGOPS Operating Systems Review
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
XFI: software guards for system address spaces
OSDI '06 Proceedings of the 7th USENIX Symposium on Operating Systems Design and Implementation - Volume 7
Optimizing network virtualization in Xen
ATEC '06 Proceedings of the annual conference on USENIX '06 Annual Technical Conference
Concurrent Direct Network Access for Virtual Machine Monitors
HPCA '07 Proceedings of the 2007 IEEE 13th International Symposium on High Performance Computer Architecture
The design and implementation of microdrivers
Proceedings of the 13th international conference on Architectural support for programming languages and operating systems
Bridging the gap between software and hardware techniques for I/O virtualization
ATC'08 USENIX 2008 Annual Technical Conference on Annual Technical Conference
Optimizing TCP receive performance
ATC'08 USENIX 2008 Annual Technical Conference on Annual Technical Conference
Tolerating malicious device drivers in Linux
USENIXATC'10 Proceedings of the 2010 USENIX conference on USENIX annual technical conference
vSnoop: Improving TCP Throughput in Virtualized Environments via Acknowledgement Offload
Proceedings of the 2010 ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis
Transparently bridging semantic gap in CPU management for virtualized environments
Journal of Parallel and Distributed Computing
Opportunistic flooding to improve TCP transmit performance in virtualized clouds
Proceedings of the 2nd ACM Symposium on Cloud Computing
Ally: OS-Transparent Packet Inspection Using Sequestered Cores
Proceedings of the 2011 ACM/IEEE Seventh Symposium on Architectures for Networking and Communications Systems
Understanding modern device drivers
ASPLOS XVII Proceedings of the seventeenth international conference on Architectural Support for Programming Languages and Operating Systems
Enhancing TCP throughput of highly available virtual machines via speculative communication
VEE '12 Proceedings of the 8th ACM SIGPLAN/SIGOPS conference on Virtual Execution Environments
vSlicer: latency-aware virtual machine scheduling via differentiated-frequency CPU slicing
Proceedings of the 21st international symposium on High-Performance Parallel and Distributed Computing
Protocol Responsibility Offloading to Improve TCP Throughput in Virtualized Environments
ACM Transactions on Computer Systems (TOCS)
vTurbo: accelerating virtual machine I/O processing using designated turbo-sliced core
USENIX ATC'13 Proceedings of the 2013 USENIX conference on Annual Technical Conference
Comprehending performance from real-world execution traces: a device-driver case
Proceedings of the 19th international conference on Architectural support for programming languages and operating systems
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In a virtualized environment, device drivers are often run inside a virtual machine (VM) rather than in the hypervisor, for reasons of safety and reduction in software engineering effort. Unfortunately, this approach results in poor performance for I/O-intensive devices such as network cards. The alternative approach of running device drivers directly in the hypervisor yields better performance, but results in the loss of safety guarantees for the hypervisor and incurs additional software engineering costs. In this paper we present TwinDrivers, a framework which allows us to semi-automatically create safe and efficient hypervisor drivers from guest OS drivers. The hypervisor driver runs directly in the hypervisor, but its data resides completely in the driver VM address space. A Software Virtual Memory mechanism allows the driver to access its VM data efficiently from the hypervisor running in any guest context, and also protects the hypervisor from invalid memory accesses from the driver. An upcall mechanism allows the hypervisor to largely reuse the driver support infrastructure present in the VM. The TwinDriver system thus combines most of the performance benefits of hypervisor-based driver approaches with the safety and software engineering benefits of VM-based driver approaches. Using the TwinDrivers hypervisor driver, we are able to improve the guest domain networking throughput in Xen by a factor of 2.4 for transmit workloads, and 2.1 for receive workloads, both in CPU-scaled units, and achieve close to 64-67 of native Linux throughput.