The Koala Benchmarks for the Shell: Characterization and Implications
summary
Koala is a curated benchmark suite of real POSIX shell programs with permanently stored inputs and automated, configurable tooling that installs dependencies, runs tests, verifies outputs and emits runtime/memory/IO reports. The paper characterizes every shell feature across the suite, measures CPU time inside vs outside the interpreter, and shows scripts ranging from seconds to hours. Applying Koala to four acceleration systems (GNU parallel, pash, HS and others) yields widely varying speedups and some incorrect outputs, demonstrating practical trade-offs and reproducible evaluation via a light harness.
AI-written summary · about
chapters (11)
- 0:00Koala shell benchmarks intro
- 1:43Need for shell benchmarking
- 2:47Shell script real-world example
- 4:51Why benchmark shell scripts
- 5:13Introducing Koala suite
- 5:54Koala benchmarks sources
- 6:34Static shell features
- 8:01Dynamic shell runtime
- 9:25Koala benchmark automation
- 10:51Optimizing with Koala
- 12:15Koala implications and future
related talks
25mPrescriptively Benchmarking Kubernetes System and Application Using K-Bench
02h 44mMeasure, don’t guess: benchmarking stories from the trenches
45mPerformance Benchmarking with Celero
44mBenchmark testing
06mIGNITE: How to benchmark … poorly
26mLatency Distributions and Micro-Benchmarking to Identify and Characterize Kernel Hotspots
02h 41mMicro Benchmarking - The Art of Realizing One is Wrong
39mMicro Benchmarks