Unverified50% confidenceFactExact time
DS4通过KV缓存磁盘持久化，保留了1M（100万token）的超长上下文能力
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026
Sources
Redis之父DS4引擎实测：128G Mac本地跑DeepSeek V4表现如何
bilibili苦苦菜-分享版6/6/2026
Related Claims
UnverifiedDS4 implements KV cache disk persistence to preserve the 1 million token ultra-long context capability of DeepSeek V4 Flash.82% similarUnverifiedDS4 leverages Apple silicon's high-speed NVMe storage to offload portions of the KV cache to disk when memory is insufficient.72% similarUnverified无DRAM缓存的PSSD在持续写入超过SLC缓存容量（通常几十GB）后速度会暴跌至100-200MB/s，大文件搬运选带独立缓存的型号更稳定71% similarUnverified4K/HDR录制文件体积大，建议搭配大容量高速存储卡，否则循环覆盖频繁且易丢帧71% similarUnverified移动固态（PSSD）持续大文件写入超过其SLC缓存容量（通常几十GB）后会掉速，无独立DRAM缓存和散热片的产品，写满缓存后速度可能跌至200MB/s以下70% similar
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