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Today's Topics:
1. Re: Motion 4.2.2 vs 4.1.1 CPU usage (tosiara)
----------------------------------------------------------------------
Message: 1
Date: Sat, 20 Jul 2019 21:18:36 +0300
From: tosiara <[email protected]>
To: Motion discussion list <[email protected]>
Subject: Re: [Motion-user] Motion 4.2.2 vs 4.1.1 CPU usage
Message-ID:
<cachtdwqyivn3g-xucswkq_aei-2+ew3vs6yodl6nrskbbgb...@mail.gmail.com>
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Would be nice to see motion log from 4.1.1 and 4.2.2 first
On Sat, Jul 20, 2019 at 9:11 PM rmbusy <[email protected]> wrote:
> I heard you in the beginning Rusian, but I really want to understand why
> I'm seeing the increased CPU usage before I simply try reducing it by other
> means. Believe me, your suggestion is on my list. :-)
>
>
> --
> Rob.
>
>
> On 7/20/19 10:30 AM, Ruslan Matveev wrote:
>
> Wow! Thats what I've been saying to topic starter from very beginning ))
>
> ??, 20 ???. 2019 ?., 20:28 tosiara <[email protected]>:
>
>> Solution for most popular RSTP cameras is to use low-res secondary stream
>> for motion detection, and main high-res stream for pass through
>>
>> On Sat, Jul 20, 2019 at 7:55 PM oleg.chekalin via Motion-user <
>> [email protected]> wrote:
>>
>>> Hi All,
>>>
>>> Then if all is bad as is, could someone propose a solution, to avoid the
>>> high load impact to processor?
>>>
>>> I mean seam no way for capturing rtsp without coding/decoding date?
>>>
>>> Regards,
>>> Oleg
>>>
>>>
>>>
>>> ?????????? ? MI MAX 2
>>> tosiara <[email protected]> | ??: 20 ???. 2019 ?. 6:53 ?? | ?????????:
>>>
>>> I have tested RTSP H264 1280x960 20 fps running on ARM ODROID C1.
>>> Just running, without any recording it takes 130% CPU. 4.1.1, 4.2.2,
>>> Ubuntu 16.04 and 18.04 - the result was always the same. NEON optimizations
>>> reduced to 125%, not much. Pretty all the time motion was decoding H264.
>>> The decoding, as already mentioned, is very CPU intensive
>>>
>>> On Sat, Jul 20, 2019 at 5:36 PM Colin Law <[email protected]> wrote:
>>>
>>>> On Sat, 20 Jul 2019 at 15:24, John D. Gwinner <[email protected]> wrote:
>>>>
>>>>> Ok, that helps me with my project ? we need to get 15fps or 30fps;
>>>>> (it?s a medical project).
>>>>>
>>>>>
>>>>>
>>>>> If you?re getting 2-5 and that high a CPU rate, clearly we?ll never
>>>>> get to 15.
>>>>>
>>>>
>>>> It also depends dramatically on the format of the data. If it is
>>>> mpjpeg for example then motion need do very little to decode the image, if
>>>> however it is H264 then there is a vast amount of work required just
>>>> extracting the images from the stream. On my system running an H264 camera
>>>> a lot more processor time is spent decoding the stream than is spent in
>>>> motion detection.
>>>>
>>>> Colin
>>>>
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>
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