···1+{ stdenv, fetchFromGitHub, autoreconfHook }:
2+3+stdenv.mkDerivation rec {
4+ pname = "multitime";
5+ version = "1.4";
6+7+ src = fetchFromGitHub {
8+ owner = "ltratt";
9+ repo = pname;
10+ rev = "${pname}-${version}";
11+ sha256 = "1p6m4gyy6dw7nxnpsk32qiijagmiq9vwch0fbc25qvmybwqp8qc0";
12+ };
13+14+ nativeBuildInputs = [ autoreconfHook ];
15+16+ meta = {
17+ description = "Time command execution over multiple executions";
18+19+ longDescription = ''
20+ Unix's `time` utility is a simple and often effective way of measuring
21+ how long a command takes to run. Unfortunately, running a command once
22+ can give misleading timings: the process may create a cache on its first
23+ execution, running faster subsequently; other processes may cause the
24+ command to be starved of CPU or IO time; etc. It is common to see people
25+ run `time` several times and take whichever values they feel most
26+ comfortable with. Inevitably, this causes problems.
27+28+ `multitime` is, in essence, a simple extension to time which runs a
29+ command multiple times and prints the timing means (with confidence
30+ intervals), standard deviations, minimums, medians, and maximums having
31+ done so. This can give a much better understanding of the command's
32+ performance.
33+ '';
34+35+ license = stdenv.lib.licenses.mit;
36+ homepage = "https://tratt.net/laurie/src/multitime/";
37+ platforms = stdenv.lib.platforms.unix;
38+ };
39+}