Rails is the well known and popular web framework built upon ruby.
Ruby’s Exceptional Creatures is a resource from HoneyBadger that documents common ruby exception.
Fixing implicit declaration error during ruby gem build1
gem install mailcatcher -- --build-flags --with-cflags="-Wno-error=implicit-function-declaration"
Getting the memory size of an object
puts RUBY_VERSION #=>1.9.3
require 'objspace'
p ObjectSpace.memsize_of("a"*23) #=> 23
p ObjectSpace.memsize_of("a"*24) #=> 24
p ObjectSpace.memsize_of("a".*1000) #=> 1000
h = {"a"=>1, "b"=>2}
p ObjectSpace.memsize_of(h) #=> 116
- Note that this doesn’t do anything for finding the references of an object
Delegation
Memory bloat and management
- get_process_mem gem
- jemalloc is an alternate implementation of malloc that emphasizes fragmentation avoidance
Halve Your Memory Usage with these 12 Weird Tricks is a conference topic by Nate Berkopec on rails app memory techniques
References
1.
Amiridis, P. Fixing the implicit declaration of function error when installing ruby gems. at https://petros.blog/2020/10/02/fixing-the-implicit-declaration-of-function-error-when-installing-ruby-gems/ (2020).