title: Scrapy + Unicode class is using a lot of memory in scrapy crawl
body: <p>I tried finding memory leaking solution Guppy and following results came up.
  As you can see Unicode class is using lot of resources here..</p>
  
  <p>Also,this only happens when I run this on my cloud instance it does not happen when I run this on my local machine..</p>
  
  <p><a href="https://i.stack.imgur.com/VPyT7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/VPyT7.png" alt="enter image description here"></a></p>
  
  <p>Here, is picture of prefs() if it is any help..
  <a href="https://i.stack.imgur.com/3t2qn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3t2qn.png" alt="enter image description here"></a></p>
  
  <p>Here as you can see Selector class is using much resources which it should not be.
  Moreover I can't seem to find any solution regarding this on internet.
  I am afraid I might be asking wrong question here..</p>
  
  <p>Any help would be appreciated..
  Thanks in advance..</p>