Issues

• Add --affinity <CPU> argument

  sharkdp/hyperfine#927 · Filter by author ilazaric opened on Sep 21, 2026

• panic: integer overflow in --parameter-scan near i32::MAX

  sharkdp/hyperfine#920 · Filter by author nikolauspschuetz opened on Aug 14, 2026

• Feature request: warn when wall time significantly exceeds CPU time

  sharkdp/hyperfine#898 · Filter by author qti3e opened on May 27, 2026
  5

• Add a shell completions command

  sharkdp/hyperfine#881 · Filter by author thernstig opened on May 17, 2026

• Shell not completing executables

  sharkdp/hyperfine#872 · Filter by author massimopavoni opened on May 4, 2026
  1

• CSV error when using parameters with --reference

  sharkdp/hyperfine#852 · Filter by author lixitrixi opened on Mar 10, 2026
  4

• [Feature Request]: Allow passing --shell on a per-command basis

  sharkdp/hyperfine#850 · Filter by author sadan4 opened on Feb 13, 2026

• Feature proposal: Find optimal warmup parameter

  sharkdp/hyperfine#848 · Filter by author nunokaeru opened on Feb 1, 2026

• Unclear how to use --reference with --prepare

  sharkdp/hyperfine#847 · Filter by author gsnedders opened on Jan 22, 2026
  2

• Feature: Option to auto-discard statistical outliers

  sharkdp/hyperfine#837 · Filter by author smprather opened on Nov 17, 2025
  1

• Feature request: Support combining benchmark results

  sharkdp/hyperfine#830 · Filter by author bdrung opened on Sep 18, 2025
  1

• Suggestion: rename --ignore-failure to --ignore-exit-code for Hyperfine 2.0

  sharkdp/hyperfine#828 · Filter by author ilyagr opened on Sep 14, 2025

• FR: Ignore failed run measurements when computing statistics or put failures into a separate bucket

  sharkdp/hyperfine#827 · Filter by author ilyagr opened on Sep 14, 2025

• Run commands sequentialy instead of in groups.

  sharkdp/hyperfine#822 · Filter by author AskSkivdal opened on Aug 5, 2025
  6

• Default execution on Windows fails when using forward slashes as directory separator

  sharkdp/hyperfine#818 · Filter by author AngelicosPhosphoros opened on Jul 8, 2025
  2

• Allow getting parameters from file lines

  feature-request
  sharkdp/hyperfine#813 · Filter by author Scripter17 opened on Apr 27, 2025
  6

• Use of both --sort command and --reference options leads to confusing relative speed table

  sharkdp/hyperfine#811 · Filter by author raviqqe opened on Mar 30, 2025
  1

• Allow -- to signal end of argument parsing

  sharkdp/hyperfine#802 · Filter by author sbc100 opened on Feb 3, 2025

• Running with --shell=none fails with Windows paths containing backslashes (\), works with forward slashes (/)

  questionwindows
  sharkdp/hyperfine#796 · Filter by author weskoerber opened on Jan 10, 2025
  1

• Hyperfine 2.0

  help wanted
  sharkdp/hyperfine#788 · Filter by author sharkdp opened on Dec 28, 2024 · hyperfine 2.0
  3

  

• Do not use an intermediate shell by default

  feature-requesthelp wanted
  sharkdp/hyperfine#787 · Filter by author sharkdp opened on Dec 28, 2024 · hyperfine 2.0
  1

• ${HYPERFINE_ITERATION} is not visible in prepare or conclude commands

  feature-requestgood first issue
  sharkdp/hyperfine#781 · Filter by author rptaylor opened on Dec 3, 2024 · hyperfine 2.0
  4

• Combine results from all parameters into one benchmark

  documentation
  sharkdp/hyperfine#778 · Filter by author rptaylor opened on Nov 27, 2024
  3

• Reserve cpus for benchmarking

  help wanted
  sharkdp/hyperfine#751 · Filter by author blackgeorge-boom opened on Jun 19, 2024
  3

• Advanced metrics beyond wall time (CPU time, instruction count, ...)

  feature-request
  sharkdp/hyperfine#736 · Filter by author intelfx opened on Mar 21, 2024 · hyperfine 2.0
  3