American astronaut missed a spacewalk and lost a tool bag
Two American astronauts embarked on a spacewalk this month to repair the solar panels of the International Space Station. During the mission, they accidentally lost a tool bag...
Astronauts forced to sleep together, foreign media evaluation: garbage dump! China Space Station is like an Apple store
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Four Mantou and one piece of cabbage for plane meal? China Southern Airlines responded
Recently, the online celebrity "Brother Feng fled to the ends of the world" sent a microblog roast that the plane meal on a flight of China Southern Airlines was four Mantou and one piece of cabbage, plus a small packet of mustard tuber. This microblog triggered a heated discussion among netizens, and many netizens left messages saying "too shabby"...
Four Mantou and one piece of cabbages were sent by China Southern Airlines to prevent Mantou from being burnt
Recently, the online celebrity "Brother Feng fled to the ends of the world" sent a microblog roast that when taking a flight of China Southern Airlines, the plane meal was four Mantou and one piece of cabbage, plus a small bag of pickles. "For the first time in so many years, I saw such a wonderful air meal...
Breaking through the garbage dilemma, technology brings new directions for nitrogen pollution control
Global Network Technology Comprehensive ReportIn the context of global climate change and environmental pollution, how to effectively deal with nitrogen pollution has become an urgent task. In 2023, the No...
The world's first! Will oil change the "price of cabbage"? China's new technology has once again boosted its national strength!
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The garbage thrown by Chinese people has become the treasure of Africans, and the more they pick up, the more respected they become
With the process and development of urbanization, more and more people are flocking to big cities, striving to find a job in them. But the increasing population in big cities has also led to a problem, which is the continuous increase in garbage in big cities...
New generation Java garbage collection tool: ZGC
JavaZGCZGC ZGCThe Z Garbage CollectorTBZGC JDK 11 JDK 15 Production ReadyZGC"Z"ZZGC ZFSZFSZFS Zettabyte File SystemJeff Bonwick Oracle ZGCZGC2018Oracle ZGC TB GC 10ms G1 15%202211Oracle ZGClive-set root-set TB 8MB-16TB ZGCZGC 10ms 2018 ZGCConcurrentTracing: CompactingSingle generation: Region-basedRegionNUMA-awareNUMANon-Uniform Memory AccessLoad barriersColored pointers2022 ZGCConcurrentRegion-basedRegionCompactingNUMA-awareNUMANon-Uniform Memory AccessUsing colored pointersUsing load barriers 2018 2022 ZGC Single generation G1G1 Region-based RegionRegionZGC G1ZGC Region-basedRegion-basedZGC G1ZGC Region :Small Region Region 2M 256KMedium Region Region 32M 256K 4MLarge Region Region: 2M 4MBCompactingCompacting ZGC CMSG1"-"NUMANUMANon-Uniform Memory Access CPU CPU CPUUniform Memory Access UMA CPU CPUNUMAUMANUMA ZGC NUMAColored pointersColored pointersJVMGC CMSG1 GC ZGC GC 64 JDK zGlobals_x86.cpp ZGC 31[0 ~ 41] 42-bits 4TB Java[42-45] 4-bits Metadata Bits Marked0Marked1RemappedFinalizable [46-63] 18-bits02[0 ~ 42] 43-bits 8TB Java[43-46] 4-bits Metadata Bits Marked0Marked1RemappedFinalizable [47-63] 17-bits03[0 ~ 43] 44-bits 16TB Java[44-47] 4-bits Metadata Bits Marked0Marked1RemappedFinalizable [48-63] 16-bits0 3 4-bits Marked0Marked1RemappedFinalizable 4Marked01-bitMarked11-bitRemapped1-bitFinalizable1-bitfinalizer Marked0Marked1RemappedZGC Marked0Marked1 RemappedZGC""GCGCLoad barriersLoad barriers JIT just-in-time compilation JVMjavaString n = person...
Three foldable screen phones that were once unattainable but have now fallen to the "cabbage price"
From the pastUnparalleled to the current "cabbage price"? What have these three foldable screen phones gone through?Imagine,Have a phone that can fold and easily fit into a pocket like a bookWhat an exciting scene this is! The emergence of foldable screen phones has filled people with infinite imagination.However, although foldable screen phones have revolutionary innovations in concept,But its actual market demand is not as much as imagined...
Not selling cabbage for a price! China launches a "rare earth defense war", and the United States is anxious: technology should not have borders
How ironic is it to guard the golden bowl of rare earths and only beg for foodAs the country with the world's largest rare earth reserves, China has long lacked purification technology and can only export primary mineral soil at a "cabbage price", and then spend real gold and silver to buy back rare earth products,It is jokingly referred to by foreign media as "holding a golden rice bowl to beg for food".However, benevolence and righteousness are not applied, and there is a mutual exchange of attack and defense...