レールは、部分をレンダリングするときに、それぞれログの出力をレンダリングします。これはパフォーマンスヒットですか？例えば

Question

部分をレンダリング@feed、をループするならば、あなたはログに以下を参照してください。

Rendered feeds/_feed_item.html.erb (2.5ms) 
Rendered feeds/_feed_item.html.erb (1.4ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.4ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.5ms) 
Rendered feeds/_feed_item.html.erb (1.5ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.5ms) 
Rendered feeds/_feed_item.html.erb (1.4ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.4ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.4ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.4ms) 
Rendered feeds/_feed_item.html.erb (1.6ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.5ms) 
Rendered feeds/_feed_item.html.erb (1.4ms) 
Rendered feeds/_feed_item.html.erb (2.8ms) 
Rendered feeds/_feed_item.html.erb (1.5ms) 
Rendered feeds/_feed_item.html.erb (2.5ms) 
Rendered feeds/_feed_item.html.erb (1.5ms) 
Rendered feeds/_feed_item.html.erb (1.8ms) 
Rendered feeds/_feed_item.html.erb (1.5ms) 
Rendered feeds/_feed_item.html.erb (1.5ms) 
Rendered feeds/_feed_item.html.erb (1.4ms) 
Rendered feeds/_feed_item.html.erb (1.6ms) 
Rendered feeds/_feed_item.html.erb (1.3ms) 
Rendered feeds/_feed_item.html.erb (1.5ms) 
Rendered feeds/_feed_item.html.erb (1.2ms) 
Rendered feeds/_feed_item.html.erb (1.4ms) 
Rendered feeds/_feed_item.html.erb (1.5ms) 
Rendered feeds/_feed_item.html.erb (1.6ms) 

は、そのパフォーマンスヒットですか？これを処理する良い方法はありますか？毎回出力されませんか？

ありがとうございました

Answer 1

はい、パフォーマンスが低下します。コレクションをレンダリングします。