Dealing with virtual desktop I/O bottlenecks

I/O bottlenecks occur when the input/output (I/O) performance of a system lags because it is not fast enough. When advancements in processor speed and memory capacity are not matched by input/output data transaction processes, significant bottleneck issues will occur. There are a range of different causes of bottlenecks. The most common and major cause can be due to storage on virtual desktop users. 

When the PC is virtualised, users demand storage on a virtual machine and physical access to the machine can become overloaded when multiple users are trying to access the storage device at the same time. Other causes of bottlenecks can be due to redundant array of independent disks (RAID) design components at times of heavy workload, or insufficient memory/cache allocation.

There are also a range of different solutions for troubleshooting I/O bottlenecks depending upon the cause. Broader solutions for general bottlenecks involve mitigating a bottleneck by adding RAM or using a different Ethernet. Other causes require a different angle of approach in its resolution. However, whatever the cause/solution, it is necessary to take a holistic view of the setup to ensure new I/O bottlenecks do not arise in other areas down the line.

This is the type of approach Silver Peak use in the solutions. Silver Peak WAN optimisation products can tackle and eliminate bottlenecks by handling error correction before the data is transmitted through the WAN. By correcting errors before they hit the WAN, the need to retransmit TCP/IP packets is reduced, and this can help to improve the performance for a faster WAN connection. 

Only Silver Peak can deliver total performance enhancement and can enable application SLAs (Service Level Agreements) at any level through any combination of transport services. Silver Peak has over 10 years’ experience in fully integrated WAN optimisation which means they ensure an unmatched user experience edge-to-edge.