Hi, Ok, the basic setup is 6 bricks per server, 2 servers. Mirror the six bricks and DHT them. I'm running three tests, dd 1G of zeros to the gluster mount, dd 1000 100k files and dd 1000 1M files. With 3M write-behind I get: 0m35.460s for 1G file 0m52.427s for 100k files 1m37.209s for 1M files Then I added a 400M external journal to all the bricks, the twist being the journals were made on a ram drive.... Running the same tests: 0m33.614s for 1G file 0m52.851s for 100k files 1m31.693s for 1M files So why is it that adding an external journal (in the ram!) seems to make no difference at all?
