Developers of thread-safe classes struggle with two opposing goals. The class must be
correct, which requires synchronizing concurrent accesses, and the class should provide …

Most modern JavaScript engines use just-in-time (JIT) compilation to translate parts of
JavaScript code into efficient machine code at runtime. Despite the overall success of JIT …

Software performance may be significantly affected by source code modifications.
Understanding the effect of these changes along different software versions is a challenging …

Software often suffers from performance bottlenecks, eg, because some code has a higher
computational complexity than expected or because a code change introduces a …

Understanding the root of a performance drop or improvement requires analyzing different
program executions at a fine grain level. Such an analysis involves dedicated profiling and …

When developers profile their applications to identify performance problems, they normally
use profilers producing calling context trees. A calling context tree (CCT) represents the …

Tracing allows the analysis of task interactions with each other and with the operating
system. Locating performance problems in a trace is not trivial because of their large size …

Replicating software performance experiments is difficult. A common obstacle to replication
is that recreating the hardware and software environments is often impractical. As …

Monitoring software performance evolution is a daunting and challenging task. This paper
proposes a lightweight visualization technique that contrasts source code variation with the …

UC Berkeley Dissertation Page 1 Dynamic Analysis for JavaScript Code by Liang Gong A
dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of …