Hi, given the following settings in squid.conf (2.7-STABLE9): cache_mem 512 MB maximum_object_size_in_memory 10 MB memory_replacement_policy heap GDSF cache_replacement_policy heap LFUDA cache_dir coss /var/cache/squid/cs 10240 max-size=131072 block-size=4096 maxfullbufs=10 cache_dir aufs /var/cache/squid/A 20000 64 256 min-size=131073 minimum_object_size 0 KB maximum_object_size 200 MB When someone downloads e.g. "patch-2.6.35-git10.bz2" with a size of ca. 6.4 MB, I see a SWAPOUT for this file in the logs, and the next one downloading this file is served directly and entirely from the cache (disk), I see a TCP_HIT in the logs. So far, so good. My question is: why is that file not getting cached in memory? The maximum_object_size_in_memory is 10 MB and big enough. For testing purposes, I set up a squid proxy with cache_dir "null", the log files show RELEASE for the mentioned kernel patchfile directly after downloading, and it is never cached in memory either... What am I missing here? Regards, Heinz.