Stream blobs from disk in 5 MB chunks

Match other services, which all use a 5 MB chunk size.

2 files changed, 4 insertions, 4 deletions

diff --git a/activestorage/lib/active_storage/service/disk_service.rb b/activestorage/lib/active_storage/service/disk_service.rb
index 5b652fe74e..b1b6f1ddcf 100644
--- a/activestorage/lib/active_storage/service/disk_service.rb
+++ b/activestorage/lib/active_storage/service/disk_service.rb
@@ -26,7 +26,7 @@ module ActiveStorage
       if block_given?
         instrument :streaming_download, key: key do
           File.open(path_for(key), "rb") do |file|
-            while data = file.read(64.kilobytes)
+            while data = file.read(5.megabytes)
               yield data
             end
           end
diff --git a/activestorage/test/models/blob_test.rb b/activestorage/test/models/blob_test.rb
index fead17d33a..daa01015f7 100644
--- a/activestorage/test/models/blob_test.rb
+++ b/activestorage/test/models/blob_test.rb
@@ -62,7 +62,7 @@ class ActiveStorage::BlobTest < ActiveSupport::TestCase
   end
 
   test "download yields chunks" do
-    blob   = create_blob data: "a" * 75.kilobytes
+    blob   = create_blob data: "a" * 5.0625.megabytes
     chunks = []
 
     blob.download do |chunk|
@@ -70,8 +70,8 @@ class ActiveStorage::BlobTest < ActiveSupport::TestCase
     end
 
     assert_equal 2, chunks.size
-    assert_equal "a" * 64.kilobytes, chunks.first
-    assert_equal "a" * 11.kilobytes, chunks.second
+    assert_equal "a" * 5.megabytes, chunks.first
+    assert_equal "a" * 64.kilobytes, chunks.second
   end
 
   test "urls expiring in 5 minutes" do