Use different, non-overlapping minimal/maximal object-sizes for the rock/aufs-cache dirs. That forces usage of one dir or the other. But: Needs newest sources, because there were some bugs in that area ! Should imply different workers, then. The "gurus" will correct me, if wrong :-) -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/SMP-vs-Single-Process-Performance-tp4659034p4659041.html Sent from the Squid - Users mailing list archive at Nabble.com.