rails，當渲染一個partial時，每個渲染輸出在日誌中。這是一個性能打擊？

Question

例如，如果遍歷@feed，這使得部分，你在日誌中看到以下內容：

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) 

那是一個性能命中？有沒有更好的方法來處理這個問題，所以不會每次都輸出？

感謝

Answer 1

是的，這是一個性能命中。呈現集合。