GPU Snake-Oil?
Not Linux-related this time… I should confess that I actually do use Windows 7 frequently, for HD Video processing and editing using Sony Vegas Pro and Cineform (on a stand-alone system), and for colour slide restoration using Photoshop (Win7 on VMware, on Linux).. The reason is that – simply – there is no equivalent quality software available for Linux.. Gimp is good, but not that good, and Kdenlive, Open Movie Editor, etc. are not stable, or sufficiently functional.. And no – I don’t wish to pay out thousands for a copy of Avid for Linux!
I have had recent experience of so-called GPU options with several video processing software products (running on Win7), but – sadly – in each case (and with a fairly decent video card, from NVIDIA..) the results have been embarrassingly poor.. In each case, I reverted to CPU-only, and the performance was improved again..
Now there is an article that echoes this sentiment:
http://www.extremetech.com/computing/128681-the-wretched-state-of-gpu-transcoding
This is annoying – to say the least – and has caused many people to (effectively) waste a lot of time and effort trying to make something work that has been trumpeted as a significant performance enhancement for the companies’ software products, but in practice ends up being worse in performance terms..
This brings back memories of the so-called ‘memory-enhancement’ products back in the early days of MS Windows…
I’m not an expert on GPU work offloading, but drivers can play a huge part in the success (or spectacular failure). The class and generate of GPU will also make huge difference. Your point about memory enhancement products brought me back to the RAM defragmenters I tried once in the late 90s… ah nostalgia.