bpkg install visionmedia/bench-sh

source bpkg_modules/bench-sh/bench.sh

# Benchmark a command (100 iterations)
bench "ls /tmp" 100

# Benchmark a function
my_func() { grep -c "foo" /var/log/syslog; }
bench_fn my_func 50

# Compare two implementations
bench_compare \
  "grep -c foo /var/log/syslog" \
  "awk '/foo/{c++}END{print c}' /var/log/syslog"