dbueso
California
Improve futex coverage in trinity
an invention by dbueso
Futexes are complex enough that make it a good candidate for applying fuzzy testing techniques to the various inputs and operations that can be performed. Instead of re-writing any testing infrastructure, make use of the trinity system call fuzzing tool. While trinity does apply fuzzing to futexes, it does so with very limited knowledge, using only generic callbacks to the different steps involved. As such the main goal is extending testing coverage and making it more ad-hoc.
perf bench epoll
a project by dbueso
While there are plenty of benchmarks that compare different IO multiplexing techniques such as epoll vs poll/select, there's really nothing out there that particularly measures epoll system call latencies under different scenarios. Design and implement a series of performance benchmarks for this call under the 'perf bench' framework.
perf-bench ipc
a project by dbueso
The state of the art of sysv/posix ipc benchmarking is a combination of ad-hoc programs scattered over the internet. While some mechanisms, such as sysv semaphores, have a lot of coverage, others really lack (message queues), and some are simply non-existent; albeit some of the legacy flavors we aren't too concerned with, other than them being functionally correct.
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