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[Bug 519536] Re: Poor thread utilisation

To: linux-traipu@xxxxxxxxxxxxxxxxxxx
From: Charles Moyes <519536@xxxxxxxxxxxxxxxxxx>
Date: Wed, 08 Mar 2017 07:44:18 -0000
Reply-to: Bug 519536 <519536@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

*** This bug is a duplicate of bug 725286 ***
    https://bugs.launchpad.net/bugs/725286

This really ought to be a higher priority than just "wishlist" in 2017.
My 8-thread Lenovo P50 right now is barely breaking a sweat as I watch
the progress bar slowly crawl encoding a basic 15-minute 1080p video on
one thread.

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https://bugs.launchpad.net/bugs/519536

Title:
  Poor thread utilisation

Status in OpenShot Video Editor:
  Confirmed

Bug description:
  Openshot doesn't seem to utilise multiprocessor CPUs very well.

  I have an intel i7 920 (4 cores, 8 threads) - when encoding video
  openshot manages approx 130% CPU (i.e 1.3 threads on average).
  Kdenlive also uses mlt but runs an mlt-melt command line to do the
  rendering which manages 220% CPU

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