timer

README

timer

timer is like time but repeats your command and provides basic statistics on execution time.

It's inspired by perf stat, but works on MacOS.

Install

go get cdr.dev/timer

Basic Usage

$ timer -n curl google.com
--- timer config
command        curl google.com
iterations     10
parallelism    1
--- percentiles
0        (fastest)         0.037s
25       (1st quantile)    0.041s
50       (median)          0.044s
75       (3rd quantile)    0.049s
100th    (slowest)         0.059s
--- summary
total     0.455s
mean      0.046s
stddev    0.006s

Apache Bench is typically better for websites

Parallelism

You can use the -p flag to configure the number of parallel threads.

$ timer -n 4 -p 2 sleep 1s
--- timer config
command        sleep 1s
iterations     4
parallelism    2
--- percentiles
0        (fastest)         1.005s
25       (1st quantile)    1.005s
50       (median)          1.006s
75       (3rd quantile)    1.006s
100th    (slowest)         1.006s
--- summary
total     2.013s
mean      1.006s
stddev    0.001s

Similar Projects

• bench provides more thorough analysis and is easily installed on MacOS