VxWorks has been around forever, and while Linux likely leads in raw unit count now due to massive constellations like Starlink, an incredible number of legacy deep-space missions are still chugging along!
I heard Curiosity only has 1% of the availble memory on-board and it's still doing science. Memory mapping and not requiring an MMU probably helps with that.
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[ 0.21 ms ] story [ 10.5 ms ] threadI heard Curiosity only has 1% of the availble memory on-board and it's still doing science. Memory mapping and not requiring an MMU probably helps with that.
https://spectrum.ieee.org/curiosity-rover-jpl-mars-science