4KB (Vec) heap allocation on every read. The page cache returns data via .to_vec(), which creates a new allocation and copies it into the Vec even on cache hits. SQLite returns a direct pointer into pinned cache memory, creating zero copies. The Fjall database team measured this exact anti-pattern at 44% of runtime before building a custom ByteView type to eliminate it.
Last month, the Bank of England held interest rates at 3.75% and at the time its governor, Andrew Bailey, told the BBC that there was likely to be "some further reduction" in rates later this year.
，更多细节参见新收录的资料
// 1 means ascending order，这一点在新收录的资料中也有详细论述
Anthropic 于周四表示，五角大楼将这家人工智能公司列为 “对美国国家安全构成供应链风险” 的决定，对其商业伙伴的影响，不会像国防部长皮特・赫格塞思上周暗示的那样严重。。业内人士推荐新收录的资料作为进阶阅读