tjh.dev
nixpkgs mirror (for testing)
github.com/NixOS/nixpkgs
nix
1{
2 lib,
3 stdenv,
4 fetchFromGitHub,
5 autoreconfHook,
6}:
7
8stdenv.mkDerivation rec {
9 pname = "multitime";
10 version = "1.4";
11
12 src = fetchFromGitHub {
13 owner = "ltratt";
14 repo = "multitime";
15 rev = "multitime-${version}";
16 sha256 = "1p6m4gyy6dw7nxnpsk32qiijagmiq9vwch0fbc25qvmybwqp8qc0";
17 };
18
19 nativeBuildInputs = [ autoreconfHook ];
20
21 meta = {
22 description = "Time command execution over multiple executions";
23
24 longDescription = ''
25 Unix's `time` utility is a simple and often effective way of measuring
26 how long a command takes to run. Unfortunately, running a command once
27 can give misleading timings: the process may create a cache on its first
28 execution, running faster subsequently; other processes may cause the
29 command to be starved of CPU or IO time; etc. It is common to see people
30 run `time` several times and take whichever values they feel most
31 comfortable with. Inevitably, this causes problems.
32
33 `multitime` is, in essence, a simple extension to time which runs a
34 command multiple times and prints the timing means (with confidence
35 intervals), standard deviations, minimums, medians, and maximums having
36 done so. This can give a much better understanding of the command's
37 performance.
38 '';
39
40 license = lib.licenses.mit;
41 homepage = "https://tratt.net/laurie/src/multitime/";
42 platforms = lib.platforms.unix;
43 mainProgram = "multitime";
44 };
45}