add more upload file sizes

Author: kathap

lib/cloud_controller/benchmark/blobstore.rb

@@ -35,6 +35,29 @@ def perform
         big_droplet_guid, resource_timing = upload_droplet(big_droplet_file.path)
         puts("big droplet upload timing: #{resource_timing * 1000}ms")
 
+        [
+          ['0.005MB', (0.005 * 1024 * 1024).to_i],
+          ['10MB', 10 * 1024 * 1024],
+          ['200MB', 200 * 1024 * 1024],
+          ['500MB', 500 * 1024 * 1024]
+        ].each do |label, size|
+          tempfile = Tempfile.new("big-droplet-#{label}", resource_dir)
+          File.open(tempfile.path, 'wb') do |f|
+            chunk = '0' * (1024 * 1024) # 1MB chunk
+            written = 0
+            while written < size
+              to_write = [chunk.bytesize, size - written].min
+              f.write(chunk.byteslice(0, to_write))
+              written += to_write
+            end
+          end
+
+          big_droplet_guid, resource_timing = upload_droplet(tempfile.path)
+          puts("big droplet #{label} upload timing: #{resource_timing * 1000}ms")
+
+          tempfile.close!
+        end
+
         resource_timing = download_droplet(big_droplet_guid, resource_dir)
         puts("big droplet download timing: #{resource_timing * 1000}ms")
       ensure