mirror of
https://github.com/metabarcoding/obitools4.git
synced 2026-04-30 12:00:39 +00:00
Eric Coissac
8c7017a99d
- Update obioptions.Version from "Release 4.4.29" to "/v/ Release v5" - Update version.txt from 4.29 → .30 (automated by Makefile)
24 lines
1.6 KiB
Markdown
24 lines
1.6 KiB
Markdown
# `obistats` Package: Semantic Description
|
||
|
||
The `obistats` package provides utility functions for **formatting and scaling benchmark measurements** in Go, especially tailored for performance benchmarks (e.g., `go test -bench`). Its core component is the **`Scaler` type**, a function that converts raw numeric values into human-readable, unit-aware strings.
|
||
|
||
- **`Scaler func(float64) string`**: A function type that formats a numeric measurement (e.g., time, memory usage, throughput) into an appropriately scaled and unit-annotated string.
|
||
|
||
- **`NewScaler(val float64, unit string) Scaler`**: Dynamically selects the best scaling strategy based on:
|
||
- The measurement value (`val`)
|
||
- Its unit (e.g., `"ns/op"`, `"MB/s"`, `"B/op"`)
|
||
|
||
It applies **SI prefixes** (`k`/`M`/`G`/`T`) with adaptive precision (0–2 decimal places) to ensure readability and consistency across table rows.
|
||
|
||
- **`timeScaler(ns float64)`**: Specialized scaler for time-based units (`ns/op`, `ns/GC`). It selects optimal unit (s, ms, µs, ns) and precision based on magnitude.
|
||
|
||
- **`hasBaseUnit(s, unit string) bool`**: Helper to detect if a full unit string (e.g., `"bytes/op"`, `"MB/s"`) includes or matches a base unit.
|
||
|
||
Key features:
|
||
- Supports common Go benchmark units: time (`ns/op`), memory (`B/op`, `bytes/op`), throughput (`MB/s`)
|
||
- Ensures consistent formatting across rows (e.g., all values in a row use same scale)
|
||
- Avoids unnecessary trailing zeros and uses SI conventions
|
||
- Designed for compatibility with internal benchmarking infrastructure (originally from `golang-design/bench`)
|
||
|
||
Intended use: formatting tables of benchmark results where readability and unit consistency are critical.
|