Hi Vladimir, What hypervisor are you using?
-----Original Message----- From: Vladimir Melnik [mailto:[email protected]] Sent: Sunday, 05 June 2016 6:06 PM To: [email protected] Subject: Storage Performance Hello, I have an ACS-driven environment with a storage subsystem which is built on Gluster over InfiniBand. The storage shows pretty good performance when I mount a volume on a host and run a simple test ("dd if=/dev/zero of=/mnt/tmp/test.1G bs=1G count=1 conv=fdatasync"), it shows about 400 MB/s and that's okay. But when I deploy a virtual machine (I tried it with CentOS-6.8-x64 as a guest OS), I can't gain so good result from inside of a guest (it shows about 40 MB/s with the same simple test). What do you think, have I forgotten to do something important when I was seting this environment up? Thank you very much for sharing your ideas and clues! -- V.Melnik
