This paper presents a surprising result: changing a seemingly innocuous aspect of an
experimental setup can cause a systems researcher to draw wrong conclusions from an …

Developers who set a breakpoint a few statements too late or who are trying to diagnose a
subtle bug from a single core dump often wish for a time-traveling debugger. The ability to …

To evaluate an innovation in computer systems, performance analysts measure execution
time or other metrics using one or more standard workloads. The performance analyst may …

Many optimizations need precise pointer analyses to be effective. Unfortunately, some Java
features, such as dynamic class loading, reflection, and native methods, make pointer …

Phase selection is the process of customizing the applied set of compiler optimization
phases for individual functions or programs to improve performance of generated code …

Despite extensive testing and correctness certification of their functional semantics, a
number of compiler optimizations have been shown to violate security guarantees …

Partial redundancy elimination (PRE) is a program transformation that identifies and
eliminates expressions that are redundant on at least one (but not necessarily all) execution …

Optionally typed languages enable direct performance comparisons between untyped and
type annotated source code. We present a comprehensive performance evaluation of two …

Partial redundancy elimination (PRE) is a program transformation that identifies and
eliminates expressions that are redundant on at least one (but not necessarily all) execution …

Modern systems are enormously complex; many applications today comprise millions of
lines of code, make extensive use of software frameworks, and run on complex, multi‐tiered …