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Old 17th October 2018, 03:52   #6441  |  Link
Wolfberry
Helenium(Easter)
 
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Join Date: Aug 2017
Location: Hsinchu, Taiwan
Posts: 99
Quote:
Originally Posted by benwaggoner View Post
No reason it would be a bad idea, I just haven't seen it used before. Generally parameters that have a reliable quality/speed tradeoff are in a preset. But it isn't listed as experimental...
Anyone from multicoreware care to weigh in? What's the tradeoff? Is this something that should get added to the faster presets, or default to on but off in --preset placebo?
Quote:
In fact, this skip is not a fast skip algorithm.
As the sum of split cost is larger than none split CU's best cost (both rdcost of sub-cu and none split CU are without split flag cost), which means splitting into 4 parts at this depth of cu is a worse case compared with none split CU. So that, the remain N * 1/4 parts of CU analysis is useless.
Quote:
Originally Posted by LigH View Post
If I understood the patch comment in the mailing list correctly, it should speed up intra split cost calculation a little while possibly preserving identical output.
splitrd-skip sounds like a small speedup with no trade off, but still disabled by default (according to the doc)
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