https://github.com/byroot/fast-bundler-demo

Demo for https://github.com/byroot/bundler/tree/experimental-fast-setup
https://github.com/byroot/fast-bundler-demo

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Demo for https://github.com/byroot/bundler/tree/experimental-fast-setup

• Host: GitHub
• URL: https://github.com/byroot/fast-bundler-demo
• Owner: byroot
• Created: 2015-07-26T18:03:06.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2015-07-26T19:44:36.000Z (over 9 years ago)
• Last Synced: 2024-12-03T03:58:16.053Z (25 days ago)
• Language: Ruby
• Size: 129 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Fast Bundler Demo

See: https://github.com/byroot/bundler/tree/experimental-fast-setup

To have any relevance, you must add gems to your gemfile.

### Results:

For a plain new Rails app with 53 gems, the improvement is barely 4%:

```sh

$ bundle install

Bundle complete! 11 Gemfile dependencies, 53 gems now installed

$ ./script/benchmark

== Booting without cache:

RequireCache disabled

$LOAD_PATH.size => 77

        1.73 real         1.47 user         0.24 sys

== Warming cache (unless already present):

RequireCache enabled

$LOAD_PATH.size => 26

        1.67 real         1.47 user         0.18 sys

== Fast boot:

RequireCache enabled

$LOAD_PATH.size => 26

        1.67 real         1.47 user         0.19 sys

```

But for a sligthly bigger app with 136 gems, the app boot 20% faster.

```sh

$ bundle install

Bundle complete! 65 Gemfile dependencies, 136 gems now installed.

$ ./script/benchmark

== Booting without cache:

RequireCache disabled

$LOAD_PATH.size => 184

        3.29 real         2.59 user         0.69 sys

== Warming cache (unless already present):

RequireCache enabled

$LOAD_PATH.size => 39

        2.74 real         2.44 user         0.29 sys

== Fast boot:

RequireCache enabled

$LOAD_PATH.size => 39

        2.62 real         2.33 user         0.27 sys

```

I tested it with a real world app with 324 gems and lots of initializers, the saving is around 25%.

```sh

RequireCache disabled

$LOAD_PATH.size => 439

     14.14 real        10.85 user         3.19 sys

RequireCache enabled

$LOAD_PATH.size => 95

     10.79 real         9.52 user         1.18 sys

```

Usage:

```sh

bundle install

./script/benchmark

```