Tag Archive for: ESXi5

05 Oct 2012

Linux 2.6 kernel-based disk scheduler

Symptoms Linux 2.6 kernel-based virtual machines experience slow storage performance as compared to physical hosts on VMWare ESXi 5. Cause As of the Linux 2.6 kernel, the default I/O Scheduler is Completely Fair Queuing (CFQ). The scheduler is an effective solution for nearly all workloads. With the release of Linux 2.6, the kernel has these […]