I switched from ufs to aufs, and recognized, that using cachemgr, "ASYNC IO Counters" always show "write:0", athough the other counters for read, unlink etc. have high values. Digging into the source code, in /src/fs/aufs/store_asyncufs.h, I found #define ASYNC_WRITE 0 obviously disabling async writes. Is it disabled because being broken/unstable, or any other reason ? Would like to get some feedback before trying to enable it in a production system. -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/squid-2-7-AUFS-Only-READS-are-async-tp4405056p4405056.html Sent from the Squid - Users mailing list archive at Nabble.com.