Use base unit, bytes

lib/promenade/pitchfork/mem_stats.rb

@@ -7,8 +7,8 @@
 module Promenade
   module Pitchfork
     class MemStats
-      Promenade.gauge :pitchfork_memory_usage_kilobytes do
-        doc "Memory usage in kilobytes, broken down by type (RSS, PSS, SHARED_MEMORY)"
+      Promenade.gauge :pitchfork_memory_usage_bytes do
+        doc "Memory usage in bytes, broken down by type (RSS, PSS, SHARED_MEMORY)"
       end
 
 
@@ -19,9 +19,9 @@ def initialize
       end
 
       def instrument
-        Promenade.metric(:pitchfork_memory_usage_kilobytes).set({ type: "Rss" }, @mem_info.rss)
-        Promenade.metric(:pitchfork_memory_usage_kilobytes).set({ type: "Pss" }, @mem_info.pss)
-        Promenade.metric(:pitchfork_memory_usage_kilobytes).set({ type: "Shared" }, @mem_info.shared_memory)
+        Promenade.metric(:pitchfork_memory_usage_bytes).set({ type: "RSS" }, @mem_info.rss * 1024)
+        Promenade.metric(:pitchfork_memory_usage_bytes).set({ type: "PSS" }, @mem_info.pss * 1024)
+        Promenade.metric(:pitchfork_memory_usage_bytes).set({ type: "Shared" }, @mem_info.shared_memory * 1024)
       end
 
       def self.instrument

spec/promenade/pitchfork/mem_stats_spec.rb

@@ -23,11 +23,11 @@
     it "sets the metrics correctly" do
       stats = Promenade::Pitchfork::MemStats.new
 
-      expect(Promenade).to receive(:metric).with(:pitchfork_memory_usage_kilobytes).and_return(metric)
+      expect(Promenade).to receive(:metric).with(:pitchfork_memory_usage_bytes).and_return(metric)
 
-      expect(metric).to receive(:set).with({:type=>"Rss"}, 100)
-      expect(metric).to receive(:set).with({:type=>"Pss"}, 50)
-      expect(metric).to receive(:set).with({:type=>"Shared"}, 50)
+      expect(metric).to receive(:set).with({:type=>"RSS"}, 102400)
+      expect(metric).to receive(:set).with({:type=>"PSS"}, 51200)
+      expect(metric).to receive(:set).with({:type=>"Shared"}, 51200)
 
       stats.instrument
     end