Hi, I wondered if it mattered what default I/O scheduler I choose in my kernel setup for gfs performance. I've looking /sys/block but can't find any place to set the I/O scheduler for my devices I run gfs off and looking at the docs it seems that gfs uses the VFS layer in the linux kernel for it's reading & writing. If I'm correct that should mean that the scheduler influences performance right? If so what one would be benficial for gfs performance in general (if such a statement can be made) and what scheduler would be benificial for a workload that consists of mostly writes and fairly few reads (90% vs 10%) Has anyone experimented with different schedulers and measured performance ? Grtz Ramon -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
