Hello, I'm using NUFA scheduler with read-ahead, write-behind and io-cache translators. I'm using x86_64 architecture. I have 3 servers that act both as clients and servers. I run bonnie++ benchmark. The machines are equipped with 4GB RAM so bonnie by default use 8GB test file split into 8 1GB files. When doing read performance tests, io-cache translator mmaps *all of eight 1GB files* into the RAM which causes system outage as there is not enough free RAM or swap. This nasty bug is present only on 64bit architecture because IA32 does not allow mmaping more than 2GB space. -- Lukáš Hejtmánek
