With the Citrix Virtual Apps and Desktop 1903 release, Machine Creation Services continues to improve!
The RAM-based write cache feature has been updated and improved. I wanted to see how the new RAM-based write cache capability compared to the previous version and how it compares to a desktop without using a RAM-based write cache.
First, let’s look at the 95th percentile IOPS with a LoginVSI knowledge worker workload running for one hour with different sizes for the RAM cache
Seeing a 15-20% reduction in storage IOPS from the 1811 RAM cache and a 50%+ reduction compared to using no RAM cache.
Let’s now look at the % Disk Time (how busy is the disk)
A 40-60% reduction in total disk activity time when we compare to the previous version. In 1903, we reduce disk write time to under 1% with 256MB write cache. It took 512MB in the 1811 version to achieve a similar performance.