Using the famous 7.9GB bluemarble image – I ran the vips-bench on my 12 core AMD 7900X to see how linear the speedup is with threads/cores – it speeds up well to 12 threads – but is really at full speed with only 8. What should be amazing is that we can process these huge files in only 5s !
System has 32GB DDR5 and was reading/writing to files in /tmp. I used a 3s pause between deleting output and running next thread-count.