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性能暴涨 80%!Windows发布原生功能
猿大侠· 2025-12-28 04:11
近期,微软宣布 Windows Server 2025 正式引入原生 NVMe 存储支持,打破了长达十多年的架构限制,彻底告别传统的 SCSI 兼容模式! SCSI 全称为 Small Computer System Interface,翻译过来就是小型计算机系统接口,是一种传统的存储连接标准,早期主要用于机械硬盘,其基于单队列模型,每 个队列最多只能处理 32 条命令,就像一条单车道,容易拥堵,难以发挥SSD的并行处理能力。 相比之下,NVMe 从一开始就是为闪存存储而设计的,最高支持 6.4 万个队列,每个队列最多可以同时处理 6.4 万条命令。这相当于把单车道换成了多车道高速公 路,数据可以直接、无锁地在CPU和SSD之间流动。 根据微软官方和多家科技媒体的实测数据,启用原生NVMe支持后,性能提升非常显著: 基于英特尔双路 CPU 和 Solidigm 3.5TB NVMe 设备的实测数据显示,在 NTFS 卷上测试 4K 随机读取后,开启原生 NVMe 的 Windows Server 2025 相比 Windows Server 2022,IOPS 提升了约 80%。 *IOPS,即每秒读写次数, ...
Seagate Stock Declined 13% In A Week. Have You Assessed The Risk?
Forbes· 2025-10-09 14:30
Core Insights - Seagate Technology (STX) stock has decreased by 12.6% over the past 5 trading days, raising concerns about its valuation and potential investment decisions [1][3] - The company plans to lay off 3,000 employees as part of a restructuring plan aimed at saving $110 million annually [3] - STX has shown a tendency to underperform compared to the S&P 500 during economic downturns, indicating potential risks for investors [3][8] Company Performance - Seagate Technology is valued at $48 billion with current revenue of $9.1 billion, trading at $224.35 [7] - The company has experienced a revenue growth of 38.9% over the last 12 months and maintains an operating margin of 21.1% [7] - STX has a Debt to Equity ratio of 0.1 and a Cash to Assets ratio of 0.11, indicating strong liquidity [7] Valuation Metrics - The stock is currently trading at a P/E multiple of 32.8 and a P/EBIT multiple of 26.3, suggesting it may be overvalued [7] - Historically, STX has provided median returns of 65.7% within a year following significant dips since 2010 [7] Historical Performance During Crises - STX stock dropped 58.2% from a peak of $116.02 on January 4, 2022, to $48.49 on November 3, 2022, while the S&P 500 saw a peak-to-trough decline of 25.4% [8] - The stock fully recovered to its pre-crisis peak by May 27, 2025, and reached a maximum of $256.84 on October 1, 2025, currently valued at $224.35 [8] - In previous crises, STX stock has shown significant declines, such as a 35.6% drop during the 2020 Covid pandemic and an 89.1% drop during the 2008 financial crisis, but it has historically recovered to pre-crisis levels [10]