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...
International Agency for Research on Cancer of WHO: Aspartame is a possible carcinogen
The Joint Expert Committee on Food Additives of the International Agency for Research on Cancer, the World Health Organization (WHO) and the Food and Agriculture Organization (FAO) recently released the assessment report on the health impact of sugar free sweetener Aspartame. The International Agency for Research on Cancer cited the "limited evidence" of carcinogenicity to human beings and classified Aspartame as one of the possible carcinogens to human beings...
US regulatory agencies are taking action for the first time! OpenAI officially investigated by FTC: generating false information poses risks
The Federal Trade Commission (FTC) may investigate OpenAI, the developer of the Chatbot ChatGPT, on consumer protection issues.On July 13 local time, CNN reported that the Federal Trade Commission of the United States was investigating whether OpenAI violated consumer protection laws, and asked OpenAI to provide a large number of records about the possibility of its processing personal data, providing inaccurate information to users, and "the risk of damage to consumers (including reputation damage)"...
Building Intelligent Coal Mines in Ordos
The picture shows the intelligent fully mechanized mining face underground in Tarahao Coal Mine. Photographed by Hao JingRecently, in the underground 3206 working face of Talahao Coal Mine of Inner Mongolia Inner Mongolia Yitai Coal Company Co...
Zhongke Chuangda and Beijing Zhiyuan Artificial Intelligence Research Institute Established a Joint Laboratory for Artificial Intelligence Large Models
[Global Network Technology Comprehensive Report] On July 14, according to the information released on the official WeChat official account of China Science and Technology Chuangda, China Science and Technology Chuangda and Beijing Zhiyuan Artificial Intelligence Research Institute jointly established the "Rubik's Cube Future Joint Laboratory". Based on this laboratory, both parties will engage in strategic cooperation in the development and application innovation of large models, promoting the application of artificial intelligence technology in fields such as intelligent cars, intelligent robots, intelligent industry, and intelligent Internet of Things...
A plane crashed into farmland in Zhenjiang, Jiangsu? Emergency Bureau: Forced landing due to malfunction, one person suffered a hand fracture and one person was slightly injured
On July 12, a netizen took a video saying that a plane crashed in a farmland near Zhenjiang City, Jiangsu Province. The on-site video shows that a plane overturned on the ground, with its wings broken and a warning line visible all around...
United Nations agencies say the continued outbreak of avian influenza poses a risk to humans
Xinhua News Agency, Geneva, July 12 (Reporter Wang Qibing) - Three United Nations agencies jointly released a press release on the 12th, stating that avian influenza has erupted in multiple parts of the world. Although it mainly affects poultry, wild birds, and some mammals, it still poses a continuous risk to humans...
The alarm bell rings long! Chinese aerospace experts were countered by a certain country's policy and sold a large amount of confidential intelligence
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Chinese scientists found nickel oxide superconductor at liquid nitrogen temperature, which is expected to break the mechanism of High-temperature superconductivity
On July 12, the journal Nature published the achievements of Professor Wang Meng's team from Sun Yat-sen University and other units: the first discovery of nickel oxide superconductors in the liquid nitrogen temperature zone. This is the first new High-temperature superconductivity system independently discovered by Chinese scientists...
Tianyan Xinzhi | [Inventory] Analysis of the Investment and Financing Situation of the Artificial Intelligence Industry in the First Half of 2023
Artificial intelligence, the "synonym" of cutting-edge technology, will become the hottest year in history in 2023. From the "fire" of the Primary market to the Secondary market, the flavor of "AI" will permeate everywhere...
One confirmed case in neighboring province! Isolation in progress! Shanxi issues an emergency reminder!
According to the website of the Shaanxi Provincial Center for Disease Control and PreventionNews on July 10thOn July 4, Xi'an City, Shaanxi Province reported a suspected case of Monkeypox virus infection. The case was tested by provincial and municipal centers for disease control and rechecked by China Center for Disease Control, and the laboratory test result was positive for Monkeypox virus Nucleic acid test...
First release of the Electric Power Artificial Intelligence Dataset Catalog
First release of the Electric Power Artificial Intelligence Dataset CatalogOn July 6, 2023, the World Artificial Intelligence Conference (WAIC 2023) with the theme of "Zhilian World: Generating the Future" was held at the Shanghai World Expo Center. Artificial intelligence technology, as a key variable, has now become a strategic lever for promoting a new round of technological revolution, industrial transformation, and social development, empowering various industries to profoundly change people's social life, industrial structure, work methods, and technological trends...