On Mon, Mar 13, 2006 at 10:24:57AM +0100, Henrik Nordstrom wrote: > > The amount of reads to these small files though indicates that these > > files are read everytime. > Correct, and is one reason why noatime is a good mount option for Squid > caches.. Yup I have that enabled. > These two are not memory related. Perhaps you were thinking of > maximum_object_size_in_memory? Yes indeed I did mean the memory object directives. > Hmm.. are you absolutely sure about this? My Squid does not show such > symptoms.. > Note: The logs does not make any difference between IMS handled from > memory or from disk. Both are logged as TCP_IMS_HIT. Hmm ok, it's possible I have totalled the number of READ system calls incorrectly. Because of the large numbers of READs I was assuming that a TCP_IMS_HIT was _always_ from a check made against a file on disk and not from memory. As you confirm that TCP_IMS_HITs can come from either memory or disk I will check my totals again. Thanks for the confirmation. -- Michael Pye