Re: [squid-users] non-caching objects still use FD mechanism?

From: Marc Elsen <marc.elsen@dont-contact.us>
Date: Thu, 27 Mar 2003 10:29:26 +0100

>Simple question: does everything get recorded by the Process
>Filedescriptor's Allocation menu, including no_cache items? I have .tar
>files set to no_cache and they still register in this menu item. One
>responder said that maybe the FD mechanism is used for all objects but I'd
>like confirmation from peopel who don't quote an entire post and then add
>one line - besides that seems very counter intuitive.

  Have a detailed reading of :

      http://www.ecst.csuchico.edu/~beej/guide/net/html/theory.html

  So FD's are already involved in network when squid does network I/O.

  And that is unrelated to eventual caching of an object or not.

 M.

>Second simple question: What are the meaning of the Nwrite and Nread columns
>and the * next to some entries in the "Process Filedescriptor's Allocation
>menu" - I looked in the source for cachemgr.cgi and comm_select and online
>but found no good explanation. At first we thought it was bytes but the
>ratio is actually about 1.6 actual bytes to every *Nwrite or *Nread unit.
 

-- 
 'Time is a consequence of Matter thus
 General Relativity is a direct consequence of QM
 (M.E. Mar 2002)
Received on Thu Mar 27 2003 - 02:29:33 MST

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