Real world benchmark: saving ~150ms for Hygen

[jondot]

Hi all,
Hygen is next-gen code generation framework where one of the key principles is performance and developer experience.

Just wanted to FYI that in a real world replacement of inquirer with enquirer in Hygen (not pushed yet, but currently under testing) enquirer is winning ~150ms:

Before

Start time: (2018-11-11 08:13:51 UTC) [treshold=1%]
 #  module                                         time  %
 1  graceful-fs (node_mod...l-fs/graceful-fs.js)    4ms  ▇ 1%
 2  ./fs (node_modules/fs...tra/lib/fs/index.js)    4ms  ▇ 1%
 3  ./copy-sync (node_mod.../copy-sync/index.js)    3ms  ▇ 1%
 4  ./json (node_modules/...a/lib/json/index.js)    3ms  ▇ 1%
 5  fs-extra (node_module...-extra/lib/index.js)   20ms  ▇▇▇ 7%
 6  lodash (node_modules/lodash/lodash.js)         15ms  ▇▇▇ 5%
 7  yargs-parser (node_mo...rgs-parser/index.js)    3ms  ▇ 1%
 8  ./params (src/params.js)                       19ms  ▇▇▇ 7%
 9  ./engine (src/engine.js)                       40ms  ▇▇▇▇▇▇ 14%
10  color-convert (node_m...or-convert/index.js)    4ms  ▇ 1%
11  ansi-styles (node_mod...nsi-styles/index.js)    6ms  ▇ 2%
12  chalk (node_modules/chalk/index.js)             9ms  ▇▇ 3%
13  ./help (src/help.js)                            9ms  ▇▇ 3%
14  ./index (src/index.js)                         52ms  ▇▇▇▇▇▇▇▇ 18%
15  ./bin (src/bin.js)                             56ms  ▇▇▇▇▇▇▇▇▇ 19%
16  ./json (node_modules/...yaml/schema/json.js)    4ms  ▇ 1%
17  ./core (node_modules/...yaml/schema/core.js)    5ms  ▇ 2%
18  ./schema/default_safe...ema/default_safe.js)    9ms  ▇▇ 3%
19  esprima (node_modules...ima/dist/esprima.js)   14ms  ▇▇▇ 5%
20  ../type/js/function (...type/js/function.js)   15ms  ▇▇▇ 5%
21  ./schema/default_full...ema/default_full.js)   16ms  ▇▇▇ 5%
22  ./js-yaml/loader (nod...b/js-yaml/loader.js)   27ms  ▇▇▇▇▇ 9%
23  ./lib/js-yaml.js (nod...yaml/lib/js-yaml.js)   30ms  ▇▇▇▇▇ 10%
24  js-yaml (node_modules/js-yaml/index.js)        30ms  ▇▇▇▇▇ 10%
25  front-matter (node_mo...ont-matter/index.js)   31ms  ▇▇▇▇▇ 11%
26  ./context (src/context.js)                      3ms  ▇ 1%
27  ./render (src/render.js)                       36ms  ▇▇▇▇▇▇ 12%
28  chalk (node_modules/i...ules/chalk/index.js)    3ms  ▇ 1%
29  ./objects/separator (...bjects/separator.js)    4ms  ▇ 1%
30  lodash (node_modules/...es/lodash/lodash.js)   15ms  ▇▇▇ 5%
31  ./baseUI (node_module...er/lib/ui/baseUI.js)   17ms  ▇▇▇ 6%
32  ./ui/bottom-bar (node...ib/ui/bottom-bar.js)   19ms  ▇▇▇ 7%
33  ../Subscriber (node_m...ernal/Subscriber.js)    5ms  ▇ 2%
34  ./util/toSubscriber (...til/toSubscriber.js)    5ms  ▇ 2%
35  ./internal/Observable...ernal/Observable.js)    5ms  ▇ 2%
36  ./internal/observable...ctableObservable.js)    4ms  ▇ 1%
37  ./scheduler/queue (no.../scheduler/queue.js)    3ms  ▇ 1%
38  ../Notification (node...nal/Notification.js)    3ms  ▇ 1%
39  ./operators/observeOn...rators/observeOn.js)    3ms  ▇ 1%
40  ./internal/ReplaySubj...al/ReplaySubject.js)    7ms  ▇▇ 2%
41  ../util/subscribeToRe...ubscribeToResult.js)    3ms  ▇ 1%
42  ./internal/observable...le/combineLatest.js)    4ms  ▇ 1%
43  ./internal/observable...bservable/concat.js)    4ms  ▇ 1%
44  rxjs (node_modules/rxjs/index.js)              42ms  ▇▇▇▇▇▇▇ 14%
45  rxjs/operators (node_.../operators/index.js)   46ms  ▇▇▇▇▇▇▇ 16%
46  ./ui/prompt (node_mod...er/lib/ui/prompt.js)   91ms  ▇▇▇▇▇▇▇▇▇▇▇▇▇▇ 31%
47  ../utils/screen-manag...s/screen-manager.js)    3ms  ▇ 1%
48  ./base (node_modules/...lib/prompts/base.js)    5ms  ▇ 2%
49  ./prompts/list (node_...lib/prompts/list.js)    9ms  ▇▇ 3%
50  chardet (node_modules/chardet/index.js)         4ms  ▇ 1%
51  iconv-lite (node_modu...v-lite/lib/index.js)    4ms  ▇ 1%
52  crypto (crypto)                                 4ms  ▇ 1%
53  tmp (node_modules/tmp/lib/tmp.js)               6ms  ▇ 2%
54  external-editor (node...ditor/main/index.js)   16ms  ▇▇▇ 5%
55  ./prompts/editor (nod...b/prompts/editor.js)   17ms  ▇▇▇ 6%
56  inquirer (node_module...rer/lib/inquirer.js)  144ms  ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇ 49%
Total require(): 1034
Total time: 292ms

After

Start time: (2018-11-11 08:13:02 UTC) [treshold=1%]
 #  module                                        time  %
 1  ./polyfills.js (node_...ful-fs/polyfills.js)   2ms  ▇ 1%
 2  graceful-fs (node_mod...l-fs/graceful-fs.js)   4ms  ▇▇ 3%
 3  ./fs (node_modules/fs...tra/lib/fs/index.js)   5ms  ▇▇ 3%
 4  ../mkdirs (node_modul...lib/mkdirs/index.js)   6ms  ▇▇ 4%
 5  ./copy-sync (node_mod...y-sync/copy-sync.js)   8ms  ▇▇▇ 5%
 6  ./copy-sync (node_mod.../copy-sync/index.js)   8ms  ▇▇▇ 5%
 7  ./copy (node_modules/...ra/lib/copy/copy.js)   2ms  ▇ 1%
 8  ./copy (node_modules/...a/lib/copy/index.js)   2ms  ▇ 1%
 9  ../remove (node_modul...lib/remove/index.js)   2ms  ▇ 1%
10  ./empty (node_modules.../lib/empty/index.js)   2ms  ▇ 1%
11  ./ensure (node_module...lib/ensure/index.js)   2ms  ▇ 1%
12  ./json (node_modules/...a/lib/json/index.js)   2ms  ▇ 1%
13  fs-extra (node_module...-extra/lib/index.js)  26ms  ▇▇▇▇▇▇▇▇ 17%
14  lodash (node_modules/lodash/lodash.js)        16ms  ▇▇▇▇▇ 11%
15  ./params (src/params.js)                      18ms  ▇▇▇▇▇▇ 12%
16  ./engine (src/engine.js)                      45ms  ▇▇▇▇▇▇▇▇▇▇▇▇▇ 30%
17  ./config-resolver (src/config-resolver.js)     2ms  ▇ 1%
18  ./conversions (node_m...vert/conversions.js)   2ms  ▇ 1%
19  color-convert (node_m...or-convert/index.js)   4ms  ▇▇ 3%
20  ansi-styles (node_mod...nsi-styles/index.js)   6ms  ▇▇ 4%
21  chalk (node_modules/chalk/index.js)            8ms  ▇▇▇ 5%
22  ./help (src/help.js)                           9ms  ▇▇▇ 6%
23  ./index (src/index.js)                        57ms  ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇ 38%
24  ./bin (src/bin.js)                            61ms  ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇ 40%
25  ./execute (src/execute.js)                     2ms  ▇ 1%
26  ejs (node_modules/ejs/lib/ejs.js)              2ms  ▇ 1%
27  ./json (node_modules/...yaml/schema/json.js)   4ms  ▇▇ 3%
28  ./core (node_modules/...yaml/schema/core.js)   4ms  ▇▇ 3%
29  ./schema/default_safe...ema/default_safe.js)   7ms  ▇▇▇ 5%
30  esprima (node_modules...ima/dist/esprima.js)  14ms  ▇▇▇▇▇ 9%
31  ../type/js/function (...type/js/function.js)  15ms  ▇▇▇▇▇ 10%
32  ./schema/default_full...ema/default_full.js)  16ms  ▇▇▇▇▇ 11%
33  ./js-yaml/loader (nod...b/js-yaml/loader.js)  25ms  ▇▇▇▇▇▇▇▇ 16%
34  ./js-yaml/dumper (nod...b/js-yaml/dumper.js)   2ms  ▇ 1%
35  ./lib/js-yaml.js (nod...yaml/lib/js-yaml.js)  28ms  ▇▇▇▇▇▇▇▇▇ 18%
36  js-yaml (node_modules/js-yaml/index.js)       28ms  ▇▇▇▇▇▇▇▇▇ 18%
37  front-matter (node_mo...ont-matter/index.js)  28ms  ▇▇▇▇▇▇▇▇▇ 18%
38  inflection (node_modu...n/lib/inflection.js)   2ms  ▇ 1%
39  ./context (src/context.js)                     3ms  ▇ 2%
40  ./render (src/render.js)                      34ms  ▇▇▇▇▇▇▇▇▇▇ 22%
41  ./add (src/ops/add.js)                         2ms  ▇ 1%
42  ./lib/utils (node_mod...quirer/lib/utils.js)   2ms  ▇ 1%
43  enquirer (node_modules/enquirer/index.js)      4ms  ▇▇ 3%
Total require(): 278
Total time: 152ms

[jonschlinkert]

Related:

• Waiting too long to require('inquirer')  SBoudrias/Inquirer.js#744
• install size bloat for inquirer@5 SBoudrias/Inquirer.js#682
• Perf comparisons #22

[jondot]

Hygen 2.0.3 is now released with enquirer replacing inquirer (brew install hygen / yarn add hygen --dev)!

Here's some more eye candy:

Before:

$ time hygen

Error: please specify a generator.

Available actions:
init: self
hygen  0.15s user 0.08s system 100% cpu 0.230 total

After

$ time hygen

Error: please specify a generator.

Available actions:
init: self
hygen  0.10s user 0.03s system 102% cpu 0.122 total

[jonschlinkert]

Closing, this will be referenced in the docs soon, thank you for letting us know!