China retaliated against new US tariffs with a slew of measures, including levies on all American imports and export controls on rare earths, escalating the trade fight with President Donald Trump.

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A new command-line option to control how many threads should be used to allocate huge pages. This can help "significantly" reduce boot time by tuning the parallelization of huge page initialization. This new command line option is "hugetlb_alloc_threads" and ideal if wanting to speed-up boot performance when allocating a large number of huge pages. The hugetlb_alloc_threads default is 25% of the available hardware threads. Cyberus Tech engineers found as much as a 2.75~4.3x speed-up for large servers:

NASA's Electrodynamic Dust Shield (EDS) successfully demonstrated its ability to remove regolith, or lunar dust and dirt, from its various surfaces on the moon during Firefly Aerospace's Blue Ghost Mission 1, which concluded on March 16.

Lunar dust is extremely abrasive and electrostatic, which means it clings to anything that carries a charge. It can damage everything from spacesuits and hardware to human lungs, making lunar dust one of the most challenging features of living and working on the lunar surface.

To begin with, the contentious 28 February Oval Office meeting can’t be understood without a crucial piece of context: there are no deposits of rare-earth ore in Ukraine known to be minable in an economically viable way. And that would be true even if full-scale warfare were not raging in the country’s east, where a great deal of its mineral resources are concentrated.

Ukraine is believed to have four areas with substantial deposits of rare earth ores, according to Erik Jonsson, senior geologist with the Geological Survey of Sweden. “There are four slightly bigger deposits: Yastrubetske, Novopoltavske, Azovske, and Mazurivske. All but one of them seem to be now within or near the zone that the Russians control, as far as I can tell,” says Jonsson. “And when it comes to resources in those deposits, I mean, we have numbers; yes, that’s nice. But we have no real, detailed, outline of how those numbers were arrived at.” The numbers are believed to come from Soviet surveys dating as far back as the 1960s.

“The rare-earth deposits don’t look that relevant,” Jonsson concludes. “I mean, I wouldn’t go for them.” Two of the deposits are dominated by a mineral called britholite, he notes, which is not desirable because it has not been processed for rare earths, which means that almost nothing exists in the way of process chemistry and equipment