Isolate FFMPEG on a dedicated CPU
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12-01-2020, 17:13
Post: #1
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Isolate FFMPEG on a dedicated CPU
Hi Simon,
I'm still working on tests with Minimserver and Linux, with the main purpose to test anything I'm think about. Recently, after having installed a RT kernel, fix CPU freq and latency using frequtils, I got a real improvement on the sound. Today I tried to use taskset to assign specific CPUs to minimserver and ffmpg. So I had "isolcpus=2,3" to grub conf reserve the 2 last cores of my CPU to this purpose. Then it was easy to set minimserver to use cpu 3 using "taskset -cp 3 MinimServer_ID" Problems comes when I wanted to dedicate cpu 2 to ffmpeg. Because ffmpeg is launched at each song, with a different ID each time. so I'd like to know if there is way to force ffmpeg to always use CPU2, whatever happen ? Also, I didn't look at the way to get minim running on CPU 3 at each boot. Is this possible ? Last thing : do you think that this is the right thing to do ? Thank, Manu |
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