9f0b74ebbb
It is not included into the main test suite, because it has :performance tag. One can run this test using command: $ bin/rspec --tag performance spec/integration/export/memory_usage_spec.rb This test creates additional fixtures set to speed up repeated runs.
51 lines
1.7 KiB
Ruby
51 lines
1.7 KiB
Ruby
# frozen_string_literal: true
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# Memory usage methods are from: https://gist.github.com/pvdb/6240788
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# returns detailed information about the process memory usage (as recorded in the "/proc/$$/statm" proc fs file)
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def Process.statm
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Hash[%i[size resident shared trs lrs drs dt].zip(open("/proc/#{Process.pid}/statm").read.split)]
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end
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# the real memory (resident set) size of the process (in 1_024 byte units, assuming a 4kB memory page size)
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def Process.rss
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Process.statm[:resident].to_i * 4
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end
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describe Diaspora::Exporter do
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context "on big profiles", :performance do
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before :all do
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if Post.count < 1000
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# Force fixture rebuild
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FileUtils.rm_f(Rails.root.join("tmp", "fixture_builder.yml"))
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end
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FixtureBuilder.configure do |fbuilder|
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# rebuild fixtures automatically when these files change:
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fbuilder.files_to_check += Dir[
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"app/models/*.rb", "lib/**/*.rb", "spec/factories/*.rb", "spec/support/fixture_builder.rb"
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] - ["lib/diaspora/exporter.rb"]
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# now declare objects
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fbuilder.factory do
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create_basic_users
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1000.times {
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FactoryGirl.create(:signed_comment, post: bob.person.posts.first)
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FactoryGirl.create(:status_message, author: bob.person)
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FactoryGirl.create(:comment, author: bob.person)
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FactoryGirl.create(:contact, user: bob)
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FactoryGirl.create(:participation, author: bob.person)
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}
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end
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end
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end
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it "doesn't exceed sensible memory usage limit" do
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json = Diaspora::Exporter.new(bob).execute
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expect(json).not_to be_empty
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expect(Process.rss).to be < 500 * 1024
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puts "Process resident set size: #{Process.rss}"
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end
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end
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end
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