Nacl SDK sample code graphics_2d cost high CPU usage
Reported by
pan_zhip...@visualon.com,
May 24 2016
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36 Example URL: Raw data in the example code Steps to reproduce the problem: 1. Complile the example nacl_sdk\pepper_47\examples\api\graphics_2d 2. Run the this example 3. Check the cpu usage in windows task manager What is the expected behavior? The cpu usage is low. What went wrong? When play 320x240 video, the CPU usage is around 40%. If changed the display size of the video to 1280x720, the CPU usage increased to around 60%. Did this work before? No Is it a problem with Flash or HTML5? N/A Does this work in other browsers? Yes Chrome version: 50.0.2661.102 Channel: stable OS Version: 6.1 (Windows 7, Windows Server 2008 R2) Flash Version: pepper_flash - Version: 21.0.0.242 We don't know the implementation of Chrome. We guess it is related to Chrome's internal implementation and depends on PC environment.
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Jun 24 2016
can you provide a repro url?
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Jun 25 2016
Need not to use a url to reproduce this issue, just use the api example video_decode to reproduce it. This example provide data internally. \pepper_47\examples\api\video_decode\testdata.h
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Jun 25 2016
Thanks for your response. I replied your comment in the issue 614264 . Use \pepper_47\examples\api\video_decode to reproduce this problem. It includes data in testdata.h
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Jun 25 2016
Thank you for providing more feedback. Adding requester "yiningc@chromium.org" for another review and adding "Needs-Review" label for tracking. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Jun 27 2016
pan_zhiping@, are you using pepperflash video player?
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Jun 28 2016
We used your sample code to develop our own video player(PnaCl plugin).
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Jun 28 2016
give to pepperflash SDK team.
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Jun 29 2016
Thank you for your support.
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Mar 13 2017
Cleaning up "Needs-Review" label as we are not using this label for triage anymore. Ref bug for this cleanup 684919
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Mar 15 2018
Issue has not been modified or commented on in the last 365 days, please re-open or file a new bug if this is still an issue. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot |
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Comment 1 by pan_zhip...@visualon.com
, May 24 2016102 KB
102 KB View Download