time — skill0

Measure command execution time. From single-shot microsecond timing to multi-run statistical analysis.

Quick Start

# With x-cmd
x time <command>                      # Single microsecond timing
x time stress -c 100 <command>        # 100-run statistics
x time cmp 'cmd1' 'cmd2' 'cmd3'      # Compare commands

# Without x-cmd — use shell built-ins
time <command>                        # Basic timing
# For benchmarking, use a loop:
for i in $(seq 1 100); do
  start=$(date +%s%N)
  <command>
  end=$(date +%s%N)
  echo $(( end - start ))
done

What's Available

• x time <cmd> — Single run, microsecond precision
• x time getms <cmd> — Millisecond precision
• x time stress -c N <cmd> — N runs with full stats
• x time stress -b N <cmd> — Auto-decide runs within budget
• x time cmp 'c1' 'c2' — Compare multiple commands

Output Formats

• --csv CSV for programmatic analysis
• --tsv Tab-separated
• --yml YAML

This skill0 grows

Starting with the essentials. Will add:

• Benchmarking patterns
• Statistical interpretation guide
• Common performance anti-patterns

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