146364aa1e
Once we learn dies, there's no current need to record NUMA nodes as a proxy. A test fixture has been reduced; it was already artificially manipulated to improve the power of the test, all the extra node and cache dross only makes it harder to see what's going on.
66 lines
1.4 KiB
Ruby
66 lines
1.4 KiB
Ruby
# frozen_string_literal: true
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require_relative "../model/spec_helper"
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RSpec.describe Prog::LearnCores do
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subject(:lc) { described_class.new(Strand.new) }
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# Gin up a topologically complex processor to test summations.
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let(:eight_thread_four_core_four_numa_two_socket) do
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<<JSON
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{
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"cpus": [
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{
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"cpu": 0,
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"socket": 0,
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"core": 0
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},{
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"cpu": 1,
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"socket": 0,
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"core": 0
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},{
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"cpu": 2,
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"socket": 0,
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"core": 1
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},{
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"cpu": 3,
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"socket": 0,
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"core": 1
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},{
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"cpu": 4,
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"socket": 1,
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"core": 0
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},{
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"cpu": 5,
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"socket": 1,
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"core": 0
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},{
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"cpu": 6,
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"socket": 1,
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"core": 1
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},{
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"cpu": 7,
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"socket": 1,
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"core": 1
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}
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]
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}
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JSON
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end
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describe "#start" do
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it "exits, saving the number of cores" do
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sshable = instance_double(Sshable)
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expect(sshable).to receive(:cmd).with("/usr/bin/lscpu -Jye").and_return(
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eight_thread_four_core_four_numa_two_socket
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)
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expect(sshable).to receive(:cmd).with(
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"cat /sys/devices/system/cpu/cpu*/topology/die_id | sort -n | uniq | wc -l"
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).and_return("4")
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expect(lc).to receive(:sshable).and_return(sshable).twice
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expect { lc.start }.to exit({total_sockets: 2, total_cores: 4, total_dies: 4, total_cpus: 8})
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end
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end
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end
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