简单讲，要做L3，需要先做L2积累数据。那么要做L4，也一样依赖L3的数据。技术上他们是一脉相承的，不存在一口就能吃个胖子的技术路线。
drop-oldest: Drops the oldest buffered data to make room. Useful for live feeds where stale data loses value.
。业内人士推荐服务器推荐作为进阶阅读
If the number of candidates for each pixel grows too large (as is common in algorithms such as Knoll and Yliluoma) then sorting the candidate list for every pixel can have a significant impact on performance. A solution is to instead sort the palette in advance and keep a separate tally of weights for every palette colour. The weights can then be accumulated by iterating linearly through the tally of sorted colours.
О задержании Костылева стало известно 27 февраля. В ближайшее время суд изберет ему меру пресечения. Расследованием дела экс-главреда Readovka занимается Главное следственное управление МВД России.