swapin objects don't have an chance to become hot objects,why??

hi squid-developers:
  I did some experiments on squid2.4.stable1,found that swapin objects never had an chance to become hot(IN_MEMORY) objects,i was so confused!
  For example,i start squid,then i visit a web page ,such as www.squid-cache.org,then i shutdown squid,and then i restart squid,i visit www.squid-cache.org again,i find that this page will certainly be swap in the memory,but it will be not added to the Memory LRU double list,i find that memobject->data_hdr.head==NULL,it will be NULL for almost every swapin object,but i think since this object has been swapin and maybe be visited again,why not keep it in memory?
  Looking forward to receiving your answer!
thanks,
Best Regards,
Frank Ma
Received on Sun May 05 2002 - 08:28:22 MDT