Performance Benchmarks

18 Dec: Steps to Run Iometer in a VMware VM?

Iometer is a great storage IO testing tool. It is easy to use, flexible, accurate, and free. Below are steps to run Iometer from within a Windows VM running on VMware. Step1: Install the older 2006.07.27 edition. Don’t use the latest 1.1.0 edition which has bugs. Download link is here. Change…

14 Feb: Virtunet’s Write-Back (Read+Write) Caching Competing with Write-Through (Read-Only) Caching at a Large School District

Host side caching software needs to accelerate both reads and writes especially in light of increasing competition from all-flash arrays. Caching writes is important even for workloads that are read intensive. If we were not to accelerate writes, the reads behind the writes on the same thread will not be…