Cortex X925’s branch target caching compares well too. Arm has a large first level BTB capable of handling two taken branches per cycle. Capacity for this first level BTB varies with branch spacing, but it seems capable of tracking up to 2048 branches. This large capacity brings X925’s branch target caching strategy closer to Zen 5’s, rather than prior Arm cores that used small micro-BTBs with 32 to 64 entries. For larger branch footprints, X925 has slower BTB levels that can track up to 16384 branches and deliver targets with 2-3 cycle latency. There may be a mid-level BTB with 4096 to 8192 entries, though it’s hard to tell.
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跳出一眼望到底的生活:国企中层的“疯狂”突围李婷 河北省 运动心理学专业傍晚,40岁的李婷去食堂点了一份“学生套餐”,阿姨冲着她笑:“老师,新来的?”她回答:“我是学生,研一。”
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