HP Remote Graphics Software 5.4.0 User Guide

Figure 8-5 Prior to RGS 5.1.3, only one image update would be in-process at any time
The Rgreceiver.MaxImageUpdateRequests property was added to enable performance
optimization in high-latency network environments. For example, setting this property to 2 will allow the
Receiver to issue a second image update request to the Sender prior to receiving the previous image
update response. This allows the Sender and Receiver to operate more in parallel—but at the potential
expense of increased network bandwidth consumption.
The sequence chart in
Figure 8-6 Sequence chart for the default property value of 4 on page 164
shows operation for the default property value of 4. In this case, the Receiver can have up to 4 image
update requests outstanding at any given time. When image update response #1 is received (meaning
that there are now 3 outstanding image update requests), the Receiver can issue image update request
#5 (again, up to a maximum of 4 outstanding image update requests at any given time).
Figure 8-6 Sequence chart for the default property value of 4
The sequence can vary considerably from that shown in Figure 8-6 Sequence chart for the default
property value of 4 on page 164. For example, image update response #1 might be received prior to
164 Chapter 8 RGS properties ENWW