The guest runs in a separate virtual address space enforced by the CPU hardware. A bug in the guest kernel cannot access host memory because the hardware prevents it. The host kernel only sees the user-space process. The attack surface is the hypervisor and the Virtual Machine Monitor, both of which are orders of magnitude smaller than the full kernel surface that containers share.
Anna HolliganBusiness reporter, Amsterdam
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这种压力也延续到了第四季度。财报显示，在第四季度，瑞幸总净收入同比增长32.9%至127.77亿元，但净利润同比下滑39%至5.18亿元，GAAP营业利润率较2024年同期下滑4.1个百分点。净利润率从8.8%降至4.1%；非GAAP净利润6.99亿元，同比下滑25.5%。即便全年营业利润率维持在10.3%，但自营门店利润率从2024年的19.0%微降至17.8%，第四季度自营门店店级运营利润率更是从19.8%下滑至15.0%。
I have been thinking a lot lately about “diachronic AI” and “vintage LLMs” — language models designed to index a particular slice of historical sources rather than to hoover up all data available. I’ll have more to say about this in a future post, but one thing that came to mind while writing this one is the point made by AI safety researcher Owain Evans about how such models could be trained: