Jump to content United States-English
HP.com Home Products and Services Support and Drivers Solutions How to Buy
» Contact HP
More options
HP.com home
HP-UX Starbase Device Drivers Manual - Vol1: HP 9000 Series 700 Computers > Chapter 2 HP VMX Device Driver

Performance

» 

Technical documentation

Complete book in PDF
» Feedback
Content starts here

 » Table of Contents

 » Index

HP VMX performance is quite good. While HP VMX is generally slower than a hardware device driver, it provides 3D client-server graphics at an interactive performance level.

Rather than attempt a full performance characterization of HP VMX, this section contains some qualitative guidelines to use when assessing the performance of HP VMX. Performance on HP VMX as a whole is determined by the performance of the two key portions of HP VMX:

  • VM (Virtual Memory) rendering — High performance VM rendering is achieved by taking advantage of HP's high performance SPUs and PowerShade graphics software.

  • Display of the VM frame buffer — Display performance is difficult to characterize because it is influenced by the performance of the X11 servers and the network throughput.

    VM rendering and display performance are both influenced by the size of the graphics window. The larger the window, the more data there is to write to the VM frame buffer, and the more data there is to display via X11 protocol. HP VMX is optimized to display only the portions of the VM frame buffer that have changed since the last display.

Printable version
Privacy statement Using this site means you accept its terms Feedback to webmaster
© 1989 - 1995 Hewlett-Packard Development Company, L.P.