// Check terrain passability
Malloy bought those two machines from NVIDIA in 2024, and just recently ordered two more, which should arrive later this week. He’s also threading new cabling through the ceiling to plug the machines straight into the computers of his data science team, so they can train models directly on‑site instead of renting time in the cloud.
。pg电子官网对此有专业解读
the last two rows are where we lose, and it’s not close - regex uses Teddy/SIMD for literals and short alternations, and we simply don’t have that yet. the case-insensitive row is the opposite story: regex falls back to an NFA when case-insensitivity with (?i) blows up the state space, dropping to 0.03 MiB/s. yes, that 16,833x number is real - this is exactly the NFA slowdown i described in the previous post. it’s not a contrived input, just case-insensitive matching on a dictionary. O(n * m) is technically “linear in n”, but when m blows up it stops feeling linear real fast.
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