[GH-ISSUE #76] How does 3FS support kvcache with high performance？ #41

New issue

Open

opened 2026-10-26 09:43:57 +00:00 by bsakaguchi · 2 comments

bsakaguchi commented

2026-10-26 09:43:57 +00:00

Owner

Originally created by @walsonyang on GitHub (Mar 4, 2025).
Original GitHub issue: https://github.com/deepseek-ai/3FS/issues/76

What's the difference between 3FS and RocksDB？Seems that 3FS use Foundation DB to store KV, and RocksDB supports SSD too.
So, in the scenario of KVCache for inference, why is 3FS needed?

Originally created by @walsonyang on GitHub (Mar 4, 2025). Original GitHub issue: https://github.com/deepseek-ai/3FS/issues/76 What's the difference between 3FS and RocksDB？Seems that 3FS use Foundation DB to store KV, and RocksDB supports SSD too. So, in the scenario of KVCache for inference, why is 3FS needed?

bsakaguchi commented

2026-10-26 09:43:58 +00:00

Author

Owner

@clicx commented on GitHub (Mar 5, 2025):

I have similar questions, why 3fs uses FoundationDB, LevelDB and RocksDB, they are working as the same functions.

@clicx commented on GitHub (Mar 5, 2025): I have similar questions, why 3fs uses FoundationDB, LevelDB and RocksDB, they are working as the same functions.

bsakaguchi commented

2026-10-26 09:43:59 +00:00

Author

Owner

@xiaoyao9933 commented on GitHub (Mar 5, 2025):

from github.com/deepseek-ai/3FS@a3f0380a30/src/lib/api/hf3fs_expected.h (L53), it seems 3fs was developed as early as year 2014. Maybe its initial motivation is for quantitative trading, not for AI.

@xiaoyao9933 commented on GitHub (Mar 5, 2025): from https://github.com/deepseek-ai/3FS/blob/a3f0380a301530a972c4813d3d47bdd28050d7ff/src/lib/api/hf3fs_expected.h#L53, it seems 3fs was developed as early as year 2014. Maybe its initial motivation is for quantitative trading, not for AI.

bsakaguchi referenced this issue

2026-10-26 09:48:02 +00:00

[PR #41] [MERGED] add missing headers for new toolchain #264