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One major limitation of malloc (and even the best implementations like jemalloc and dlmalloc) is that they try to use a single allocator for each data structure. This is a mistake: A huge performance gain can be had by using

That looks something like this for a small grid where our snake is moving down. Notice that we delete and re-print 3 entire lines!

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Web streams was an ambitious project that brought streaming to the web platform when nothing else existed. The people who designed it made reasonable choices given the constraints of 2014 – before async iteration, before years of production experience revealed the edge cases.

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