A tool for analyzing time and RSS footprint of gems or standard library requires. Requires Ruby >= 2.2.0, works on Linux and MacOS.
You can use this gem with or without Bundler. Using Bundler is more convenient and does not have any
impact on results, however you have to have gem_footprint_analyzer present in your Gemfile
(use the development section).
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GemFootprintAnalyzer (0.1.6)
Usage: bundle exec analyze_requires library_to_analyze [require]
-f, --formatter FORMATTER Format output using selected formatter (json tree)
-n, --runs-num NUMBER Number of runs
-r, --rubygems Require rubygems before the actual analyze
-g, --gemfile Analyze current Gemfile
-d, --debug Show debug information
-h, --help Show this message- with Bundler
# Standard library
$ bundle exec analyze_requires net/http
# Gem with non-standard require
$ bundle exec analyze_requires activerecord active_record- without Bundler
# Standard library
$ analyze_requires net/http
# Analyzing gems without Bundler will require you provide all dependencies paths in the RUBYLIB env var
$ RUBYLIB=/Users/irving/.gem/ruby/2.5.3/gems/activerecord-5.2.1/lib:/Users/irving/.gem/ruby/2.5.3/gems/activesupport-5.2.1/lib/:/Users/irving/.gem/ruby/2.5.3/gems/concurrent-ruby-1.0.5/lib:/Users/irving/.gem/ruby/2.5.3/gems/i18n-1.1.1/lib:/Users/irving/.gem/ruby/2.5.3/gems/activemodel-5.2.1/lib:/Users/irving/.gem/ruby/2.5.3/gems/arel-9.0.0/lib:/Users/irving/.gem/ruby/2.5.3/gems/tzinfo-1.2.5/lib:/Users/irving/.gem/ruby/2.5.3/gems/thread_safe-0.3.6/lib analyze_requries activerecord active_recordGemFootprintAnalyzer can be used to analyze the whole Gemfile of a given project. This way, it is cleary visible which gems take most time or consume most RSS on application start. You can also see what kind of impact does adding a new dependency have on the the project footprint. As processing of all gems might take a lot of time, it is advisable to set the number of runs to 1.
# Analyze the entire Gemfile, with a single run
irving:~/Workspace/motoperf (master)$ bundle exec analyze_requires -gn1
GemFootprintAnalyzer (0.1.6)
Analyze results (average measured from 1 run(s))
time is the amount of time given require has taken to complete
RSS is total memory increase up to the point after the require
name time RSS after
--------------------------------------------
newrelic_rpm 1540ms 38540KB
draper 242ms 31544KB
activemodel-serializers-xml 46ms 29248KB
slim 261ms 29088KB
dalli 107ms 26036KB
bcrypt 31ms 25872KB
will_paginate 45ms 25848KB
jbuilder 190ms 25844KB
jquery-rails 17ms 25808KB
uglifier 135ms 25808KB
sass-rails 3379ms 25676KB
pg 108ms 13260KB
rails 3516ms 12612KB
Total runtime 10.0740sAdd this line to your application's Gemfile:
gem 'gem_footprint_analyzer', require: falseAnd then execute:
$ bundle
Or install it yourself as:
$ gem install gem_footprint_analyzer
$ analyze_requires timeout
GemFootprintAnalyzer (0.1.5)
Analyze results (average measured from 10 run(s))
time is the amount of time given require has taken to complete
RSS is total memory increase up to the point after the require
name time RSS after
------------------------
timeout 1ms 226KB
Total runtime 0.3430s
$ analyze_requires net/http
GemFootprintAnalyzer (0.1.5)
Analyze results (average measured from 10 run(s))
time is the amount of time given require has taken to complete
RSS is total memory increase up to the point after the require
name time RSS after
---------------------------------------------------
net/http 182ms 2897KB
net/http/backward 1ms 2897KB
net/http/proxy_delta 1ms 2886KB
net/http/responses 2ms 2885KB
net/http/response 2ms 2782KB
net/http/requests 1ms 2706KB
net/http/request 1ms 2676KB
net/http/generic_request 3ms 2670KB
net/http/header 2ms 2575KB
net/http/exceptions 1ms 2416KB
stringio 1ms 2397KB
zlib 1ms 2355KB
uri 78ms 2296KB
uri/mailto 2ms 2296KB
uri/generic 0ms 2296KB
uri/ldaps 1ms 2078KB
uri/ldap 0ms 2078KB
uri/ldap 1ms 2065KB
uri/generic 0ms 2065KB
uri/https 1ms 2016KB
uri/http 0ms 2016KB
uri/http 1ms 2012KB
uri/generic 0ms 2012KB
uri/ftp 1ms 2004KB
uri/generic 0ms 2004KB
uri/generic 4ms 1976KB
uri/common 0ms 1976KB
uri/common 14ms 1698KB
uri/rfc3986_parser 2ms 1693KB
uri/rfc2396_parser 2ms 1558KB
net/protocol 26ms 1190KB
io/wait 1ms 1190KB
timeout 1ms 1165KB
socket 10ms 1119KB
io/wait 1ms 1119KB
socket.so 1ms 1089KB
Total runtime 2.1813s
$ bundle exec analyze_requires active_support active_support/time
GemFootprintAnalyzer (0.1.5)
Analyze results (average measured from 10 run(s))
time is the amount of time given require has taken to complete
RSS is total memory increase up to the point after the require
name time RSS after
-------------------------------------------------------------------------------------
active_support/time 1082ms 5084KB
active_support/core_ext/string/zones 5ms 5084KB
active_support/core_ext/time/zones 0ms 5084KB
active_support/core_ext/string/conversions 0ms 5082KB
active_support/core_ext/string/conversions 5ms 5080KB
active_support/core_ext/time/calculations 0ms 5080KB
date 0ms 5078KB
active_support/core_ext/numeric/time 0ms 5074KB
active_support/core_ext/integer/time 23ms 5074KB
active_support/core_ext/numeric/time 18ms 5074KB
active_support/core_ext/date/acts_like 0ms 5074KB
active_support/core_ext/date/calculations 0ms 5066KB
active_support/core_ext/time/acts_like 0ms 5066KB
active_support/core_ext/time/calculations 0ms 5066KB
active_support/duration 0ms 5064KB
active_support/duration 0ms 5060KB
active_support/core_ext/date_time 56ms 5058KB
active_support/core_ext/date_time/conversions 18ms 5058KB
active_support/values/time_zone 0ms 5058KB
active_support/core_ext/date_time/calculations 0ms 5047KB
active_support/core_ext/time/conversions 0ms 5046KB
active_support/inflector/methods 0ms 5043KB
date 0ms 5043KB
active_support/core_ext/date_time/compatibility 5ms 5040KB
active_support/core_ext/module/redefine_method 0ms 5040KB
active_support/core_ext/date_and_time/compatibility 0ms 5036KB
active_support/core_ext/date_time/calculations 0ms 5033KB
active_support/core_ext/date_time/blank 1ms 5033KB
date 0ms 5033KB
active_support/core_ext/date_time/acts_like 5ms 5028KB
active_support/core_ext/object/acts_like 0ms 5028KB
date 0ms 5025KB
active_support/core_ext/date 43ms 5016KB
active_support/core_ext/date/zones 0ms 5016KB
active_support/core_ext/date/conversions 13ms 5011KB
active_support/core_ext/module/redefine_method 0ms 5011KB
active_support/core_ext/date/zones 0ms 5002KB
active_support/inflector/methods 0ms 5000KB
date 0ms 4997KB
active_support/core_ext/date/calculations 0ms 4989KB
active_support/core_ext/date/blank 1ms 4987KB
date 0ms 4987KB
active_support/core_ext/date/acts_like 1ms 4975KB
active_support/core_ext/object/acts_like 0ms 4975KB
active_support/core_ext/time 878ms 4964KB
active_support/core_ext/time/zones 0ms 4964KB
active_support/core_ext/time/conversions 0ms 4959KB
active_support/core_ext/time/compatibility 6ms 4958KB
active_support/core_ext/module/redefine_method 1ms 4958KB
active_support/core_ext/date_and_time/compatibility 0ms 4939KB
active_support/core_ext/time/calculations 839ms 4931KB
active_support/core_ext/date/calculations 31ms 4931KB
active_support/core_ext/date_and_time/calculations 0ms 4931KB
active_support/core_ext/time/zones 0ms 4919KB
active_support/core_ext/date/zones 5ms 4916KB
active_support/core_ext/date_and_time/zones 0ms 4916KB
date 0ms 4910KB
active_support/core_ext/object/acts_like 0ms 4904KB
active_support/duration 0ms 4904KB
date 0ms 4904KB
active_support/core_ext/date_and_time/calculations 3ms 4879KB
active_support/core_ext/object/try 1ms 4879KB
delegate 0ms 4879KB
active_support/core_ext/time/zones 10ms 4808KB
active_support/core_ext/date_and_time/zones 1ms 4808KB
active_support/core_ext/time/acts_like 0ms 4798KB
active_support/time_with_zone 0ms 4796KB
active_support/time_with_zone 22ms 4788KB
active_support/core_ext/date_and_time/compatibility 6ms 4788KB
active_support/core_ext/module/attribute_accessors 5ms 4788KB
active_support/core_ext/regexp 0ms 4788KB
active_support/core_ext/array/extract_options 0ms 4762KB
active_support/core_ext/object/acts_like 0ms 4747KB
active_support/values/time_zone 0ms 4747KB
active_support/duration 0ms 4746KB
active_support/core_ext/time/conversions 228ms 4628KB
active_support/values/time_zone 223ms 4628KB
active_support/core_ext/object/blank 0ms 4628KB
concurrent/map 0ms 4599KB
tzinfo 208ms 4594KB
tzinfo/country_timezone 1ms 4594KB
tzinfo/country 1ms 4581KB
thread_safe 0ms 4581KB
tzinfo/zoneinfo_country_info 1ms 4566KB
tzinfo/ruby_country_info 1ms 4561KB
tzinfo/country_info 1ms 4560KB
tzinfo/country_index_definition 1ms 4554KB
tzinfo/timezone_proxy 1ms 4552KB
tzinfo/linked_timezone 1ms 4547KB
tzinfo/data_timezone 1ms 4540KB
tzinfo/info_timezone 1ms 4538KB
tzinfo/timezone 43ms 4532KB
thread_safe/cache 8ms 4532KB
thread_safe/mri_cache_backend 2ms 4532KB
thread_safe/non_concurrent_cache_backend 1ms 4532KB
thread 0ms 4460KB
thread_safe 13ms 4418KB
thread_safe/synchronized_delegator 8ms 4418KB
monitor 1ms 4418KB
delegate 2ms 4384KB
thread_safe/version 0ms 4353KB
set 0ms 4352KB
date 0ms 4351KB
tzinfo/timezone_period 1ms 4292KB
tzinfo/zoneinfo_data_source 2ms 4269KB
tzinfo/ruby_data_source 1ms 4208KB
tzinfo/data_source 1ms 4196KB
thread 0ms 4196KB
tzinfo/zoneinfo_timezone_info 2ms 4175KB
tzinfo/transition_data_timezone_info 1ms 4095KB
tzinfo/linked_timezone_info 1ms 4052KB
tzinfo/data_timezone_info 1ms 4037KB
tzinfo/timezone_info 1ms 4026KB
tzinfo/timezone_index_definition 1ms 4020KB
tzinfo/timezone_transition_definition 1ms 4012KB
tzinfo/timezone_transition 1ms 4002KB
tzinfo/timezone_offset 1ms 3991KB
tzinfo/timezone_definition 1ms 3977KB
tzinfo/time_or_datetime 5ms 3974KB
time 0ms 3974KB
date 0ms 3970KB
tzinfo/offset_rationals 1ms 3953KB
tzinfo/ruby_core_support 1ms 3940KB
date 0ms 3940KB
active_support/inflector/methods 0ms 3836KB
active_support/duration 491ms 3833KB
active_support/deprecation 0ms 3833KB
active_support/core_ext/string/filters 1ms 3779KB
active_support/core_ext/object/acts_like 0ms 3775KB
active_support/core_ext/module/delegation 0ms 3774KB
active_support/core_ext/array/conversions 468ms 3772KB
active_support/core_ext/object/to_query 0ms 3772KB
active_support/core_ext/object/to_param 2ms 3768KB
active_support/core_ext/object/to_query 1ms 3768KB
cgi 0ms 3768KB
active_support/core_ext/string/inflections 0ms 3765KB
active_support/core_ext/hash/keys 1ms 3765KB
active_support/xml_mini 434ms 3756KB
active_support/xml_mini/rexml 20ms 3756KB
stringio 1ms 3756KB
active_support/core_ext/object/blank 5ms 3734KB
concurrent/map 0ms 3734KB
active_support/core_ext/regexp 0ms 3730KB
active_support/core_ext/kernel/reporting 1ms 3718KB
active_support/core_ext/date_time/calculations 2ms 3711KB
date 0ms 3711KB
active_support/core_ext/string/inflections 361ms 3669KB
active_support/inflector/transliterate 10ms 3669KB
active_support/i18n 0ms 3669KB
active_support/core_ext/string/multibyte 1ms 3653KB
active_support/multibyte 0ms 3653KB
active_support/inflector/methods 342ms 3638KB
active_support/core_ext/regexp 0ms 3638KB
active_support/inflections 326ms 3618KB
active_support/inflector/inflections 324ms 3618KB
active_support/deprecation 104ms 3618KB
active_support/core_ext/module/deprecation 1ms 3618KB
active_support/deprecation/proxy_wrappers 1ms 3390KB
active_support/core_ext/regexp 0ms 3390KB
active_support/deprecation/method_wrappers 6ms 3376KB
active_support/core_ext/array/extract_options 1ms 3376KB
active_support/core_ext/module/aliasing 1ms 3374KB
active_support/deprecation/constant_accessor 1ms 3365KB
active_support/deprecation/reporting 4ms 3346KB
rbconfig 3ms 3346KB
active_support/deprecation/behaviors 27ms 3106KB
active_support/notifications 26ms 3106KB
active_support/per_thread_registry 1ms 3106KB
active_support/core_ext/module/delegation 0ms 3106KB
active_support/notifications/fanout 6ms 3056KB
concurrent/map 0ms 3056KB
mutex_m 1ms 3039KB
active_support/notifications/instrumenter 2ms 2985KB
securerandom 1ms 2985KB
active_support/deprecation/instance_delegator 6ms 2867KB
active_support/core_ext/module/delegation 0ms 2867KB
active_support/core_ext/kernel/singleton_class 1ms 2840KB
singleton 1ms 2828KB
active_support/i18n 77ms 2786KB
i18n/config 1ms 2786KB
set 0ms 2786KB
active_support/lazy_load_hooks 1ms 2740KB
i18n 48ms 2718KB
i18n/interpolate/ruby 1ms 2718KB
i18n/exceptions 25ms 2543KB
cgi 24ms 2543KB
cgi/util 0ms 2543KB
cgi/cookie 4ms 2528KB
cgi/util 3ms 2528KB
cgi/escape 1ms 2528KB
cgi/core 3ms 2452KB
i18n/version 0ms 2228KB
concurrent/map 0ms 2220KB
active_support/core_ext/hash/slice 1ms 2181KB
active_support/core_ext/hash/except 1ms 2164KB
active_support/core_ext/hash/deep_merge 1ms 2154KB
active_support/core_ext/regexp 0ms 2142KB
active_support/core_ext/array/prepend_and_append 1ms 2137KB
concurrent/map 107ms 2124KB
concurrent/collection/map/mri_map_backend 6ms 2124KB
concurrent/collection/map/non_concurrent_map_backend 1ms 2124KB
concurrent/constants 0ms 2124KB
thread 0ms 2070KB
concurrent/synchronization 82ms 2055KB
concurrent/synchronization/lock 1ms 2055KB
concurrent/synchronization/condition 1ms 2042KB
concurrent/synchronization/lockable_object 1ms 2021KB
concurrent/synchronization/truffle_lockable_object 1ms 1994KB
concurrent/synchronization/rbx_lockable_object 1ms 1986KB
concurrent/synchronization/jruby_lockable_object 1ms 1966KB
concurrent/synchronization/mri_lockable_object 1ms 1949KB
concurrent/synchronization/abstract_lockable_object 1ms 1914KB
concurrent/synchronization/volatile 1ms 1891KB
concurrent/synchronization/object 1ms 1866KB
concurrent/synchronization/truffle_object 1ms 1815KB
concurrent/synchronization/rbx_object 1ms 1779KB
concurrent/synchronization/jruby_object 1ms 1742KB
concurrent/synchronization/mri_object 1ms 1707KB
concurrent/utility/native_extension_loader 1ms 1660KB
concurrent/utility/engine 0ms 1660KB
concurrent/synchronization/abstract_object 1ms 1581KB
concurrent/utility/engine 1ms 1562KB
concurrent/constants 0ms 1506KB
thread 0ms 1490KB
active_support/core_ext/module/delegation 8ms 1325KB
active_support/core_ext/regexp 1ms 1325KB
set 2ms 1304KB
bigdecimal 1ms 1159KB
base64 1ms 1108KB
time 0ms 1098KB
active_support/core_ext/time/acts_like 1ms 655KB
active_support/core_ext/object/acts_like 0ms 655KB
time 3ms 610KB
date 0ms 610KB
date 2ms 367KB
date_core 1ms 367KB
Total runtime 11.2834s
$ bundle exec analyze_requires archfiend
GemFootprintAnalyzer (0.1.5)
Analyze results (average measured from 10 run(s))
time is the amount of time given require has taken to complete
RSS is total memory increase up to the point after the require
name time RSS after
----------------------------------------------------------
archfiend 64ms 888KB
archfiend/daemon 1ms 888KB
archfiend/subprocess_loop 1ms 855KB
archfiend/thread_loop 1ms 835KB
archfiend/shared_loop/runnable 0ms 820KB
archfiend/logging/multi_logger 1ms 817KB
archfiend/logging/default_formatter 0ms 804KB
archfiend/logging/base_formatter 1ms 800KB
archfiend/logging 5ms 779KB
logger 4ms 779KB
monitor 1ms 779KB
archfiend/application 1ms 490KB
archfiend/version 0ms 327KB
forwardable 2ms 309KB
forwardable/impl 1ms 309KB
Total runtime 0.9878s
Bug reports and pull requests are welcome on GitHub at https://github.com/irvingwashington/gem_footprint_analyzer. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.
The gem is available as open source under the terms of the MIT License.
Everyone interacting in the GemFootprintAnalyzer project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.