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mperham/gc opts

Last active August 29, 2015 14:01
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Ruby 2.1.2 memory bloat/leak
Raw
gc opts
> pp ENV.select {|x| x =~ /^RUBY/ }
{"RUBY_GC_HEAP_GROWTH_FACTOR"=>"1.3",
"RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR"=>"1.3",
"RUBY_GC_HEAP_INIT_SLOTS"=>"600000",
"RUBY_GC_MALLOC_LIMIT"=>"90000000",
"RUBYOPT"=>"-rbundler/setup",
"RUBYLIB"=>
"/usr/local/rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.2/lib"}
Raw
gistfile1.txt
We have serious memory bloat/leakage in our production daemons. Sidekiq starts around
250MB and balloons up to 2GB over the course of 12-24 hours. Puma starts a master and
10 workers, starting about 3GB total, before ballooning up to 30GB over the course of
12-24 hours.
@zzak
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zzak commented May 27, 2014

Here's a list of GC params available in 2.1: https://github.com/ruby/ruby/blob/ruby_2_1/gc.c#L5691-L5720

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