We reuse our scavanger counter, so values 0...n
There is a plan to prevent such a strike—the Space Surveillance Network, a bevy of sensors that the military uses to track space debris. NASA monitors what’s unofficially known as the “pizza box,” a sort of no-fly zone around the ISS. When pieces of debris are predicted to enter the box—if there’s at least a 1 in 100,000 chance of collision—mission controllers order avoidance maneuvers, firing thrusters that move the ISS and dodge the trash. The technique has been used dozens of times since the first ISS module launched in 1998. But the system only tracks about 45,000 larger pieces, and all sensors have noise. Plus, risk thresholds can miss stuff, sometimes badly. In 2025, Chinese astronauts were briefly stranded at their station after debris hit their return vehicle.
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屯头村没有闲人。一年四季如此。庄稼只种一季,做宫灯一年四季都忙。李婶在小苏家帮忙,已做了奶奶的她说话幽默,用“铁路警察各管一段”形象地概括了宫灯的复杂工序。她是屯头村闺女,从小跟着家里人做灯,4个哥哥全开着宫灯厂。
Дания захотела отказать в убежище украинцам призывного возраста09:44。91视频对此有专业解读
How often does the "slow path" actually trigger? With 32 TLB entries covering 128 KB, Intel claimed a 98% hit rate for typical workloads of the era. That sounds impressive, but a 2% miss rate means a page walk every 50 memory accesses -- still quite frequent. So the 386 overlaps page walks with normal instruction execution wherever possible. A dedicated hardware state machine performs each walk:,更多细节参见Line官方版本下载
Backpressure: good in theory, broken in practice