Modern compilers are responsible for adapting the semantics of source programs into a
form that makes efficient use of a highly complex, heterogeneous machine. This adaptation …

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, ie, inspect or control …

The traditional "trap and emulate" I/O paravirtualization model conveniently allows for I/O
interposition, yet it inherently incurs costly guest-host context switches. The newer "sidecore" …

The performance of many parallel applications relies not on instruction-level parallelism but
on loop-level parallelism. Unfortunately, automatic parallelization of loops is a fragile process…

Streaming applications are built of data-driven, computational components, consuming and
producing unbounded data streams. Streaming oriented systems have become dominant in …

The layout of data in memory can have a significant effect on the performance of applications.
Several compilation techniques can be used to optimize this layout. This paper describes …

For many parallel applications, performance relies not on instruction-level parallelism, but
on loop-level parallelism. Unfortunately, many modern applications are written in ways that …

Helping programmers write parallel software is an urgent problem given the popularity of
multi-core architectures. Engineering compilers which automatically parallelize and vectorize …

In recent years interprocedural dataflow optimization and analysis became a standard part
of optimizing compilers. We implemented such an optimization in GCC—interprocedural …

In the KVM hypervisor, incoming packets from the network must pass through several objects
in the Linux kernel before being delivered to the guest VM. Currently, both the hypervisor …