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dedup's Introduction

Dedup

Deep object deduplication.

If your app keeps lots of static data in memory, such as i18n data or large configurations, this can reduce memory retention.

Installation

Add this line to your application's Gemfile:

gem 'dedup'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install dedup

Usage

This library is meant to be called on large static data structures loaded during boot:

SOME_DATA = Dedup.deep_intern!(YAML.load_file('path.yml'))

Keep in mind that it trades CPU during boot reduced for memory retention. It isn't meant to be applied on runtime data with reduced lifetime, but on static data loaded during boot.

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/dedup.

License

The gem is available as open source under the terms of the MIT License.

dedup's People

Contributors

byroot avatar casperisfine avatar alexcrocha avatar flavorjones avatar

Stargazers

avatar Martin Ziserman avatar Dmytro Piliugin avatar Bohdan Zhuravel avatar Pavel Bonda avatar Li Ding avatar Tarun Chaudhry avatar Brian Rossetti avatar

Watchers

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Forkers

isabella232 qpc-github

dedup's Issues

version 0.1.1 fails to compile 

⋊> ~/s/g/S/billing on master ◦ gem install dedup -v '0.1.1'
Building native extensions. This could take a while...
ERROR:  Error installing dedup:
        ERROR: Failed to build gem native extension.

    current directory: /Users/kmdavis/.gem/ruby/2.6.5/gems/dedup-0.1.1/ext/dedup
/opt/rubies/2.6.5/bin/ruby -I /opt/rubies/2.6.5/lib/ruby/2.6.0 -r ./siteconf20200911-2590-blnc8i.rb extconf.rb
creating Makefile

current directory: /Users/kmdavis/.gem/ruby/2.6.5/gems/dedup-0.1.1/ext/dedup
make "DESTDIR=" clean

current directory: /Users/kmdavis/.gem/ruby/2.6.5/gems/dedup-0.1.1/ext/dedup
make "DESTDIR="
compiling dedup.c
dedup.c:67:17: error: implicit declaration of function 'rb_hash_bulk_insert' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
                rb_hash_bulk_insert(arg.index, arg.pairs, data);
                ^
1 error generated.
make: *** [dedup.o] Error 1

make failed, exit code 2

Gem files will remain installed in /Users/kmdavis/.gem/ruby/2.6.5/gems/dedup-0.1.1 for inspection.
Results logged to /Users/kmdavis/.gem/ruby/2.6.5/extensions/x86_64-darwin-19/2.6.0-static/dedup-0.1.1/gem_make.out

I encountered this while dev uping billing master

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