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Ideas for next video are most welcome. The ideal task: 1. Is single threaded 2. Takes a lot of CPU 3. Is a task that everyone can understand and relate to and

• surki 16y ago
  How about doing something with imagemagick or mencoder? I think video encoding/decoding gives a nice balance between disk and cpu usage.
  • eschulte 16y ago
    Here's an imagemagick example; over six minutes with xargs, under 20 seconds with parallel $ ls *.png |wc -l 3580 $ time ls|sed 's/\(.*\)\..*/\1/'|parallel convert {}.png {}.ppm ls --color 0.00s user 0.01s system 63% cpu 0.016 total sed 's/\(.*\)\..*/\1/' 0.01s user 0.00s system 39% cpu 0.025 total parallel convert {}.png {}.ppm 97.39s user 61.87s system 890% cpu 17.883 total $ time ls|sed 's/\(.*\)\..*/\1/'|xargs -I {} convert {}.png {}.ppm ls --color 0.01s user 0.00s system 63% cpu 0.016 total sed 's/\(.*\)\..*/\1/' 0.01s user 0.00s system 39% cpu 0.025 total xargs -I {} convert {}.png {}.ppm 93.08s user 47.88s system 38% cpu 6:10.88 total