[PR #1314] [MERGED] [Store] Tiered Backend add Dram tier support

No labels

No milestone

No project

No assignees

1 participant

Notifications

Due date

The due date is invalid or out of range. Please use the format "yyyy-mm-dd".

No due date set.

Dependencies

No dependencies set.

Reference

kvcache-ai/Mooncake#2153

bsakaguchi commented

2026-10-29 21:33:11 +00:00

Owner

📋 Pull Request Information

Original PR: https://github.com/kvcache-ai/Mooncake/pull/1314
Author: @YiXR
Created: 12/31/2025
Status: ✅ Merged
Merged: 1/8/2026
Merged by: @wanyue-wy

Base: P2P-Mooncake-Store ← Head: xinyi/tiered-backend-next

📝 Commits (8)

fee0642 [Store]: add dram tier support
6691a98 [Store]: add unit test for tiered backend
925fb18 [Store] Optimize TempDRAMBuffer with RAII memory management
b40bb82 [Store] optimize cache tier and backend api
81d6739 [Store] change uuid to CacheTier* in TieredLocation
80f5659 [Store] Add wait handle logic in dram iter exit
90db6b6 [Store] update tiered backend init return code
751d5f6 [Store] tiered backend remove FreeInternal func

📊 Changes

9 files changed (+1632 additions, -66 deletions)

View changed files

📝 mooncake-store/include/tiered_cache/cache_tier.h (+69 -10)
➕ mooncake-store/include/tiered_cache/dram_tier.h (+47 -0)
📝 mooncake-store/include/tiered_cache/tiered_backend.h (+5 -7)
📝 mooncake-store/src/CMakeLists.txt (+1 -0)
📝 mooncake-store/src/tiered_cache/data_copier.cpp (+52 -5)
➕ mooncake-store/src/tiered_cache/dram_tier.cpp (+199 -0)
📝 mooncake-store/src/tiered_cache/tiered_backend.cpp (+109 -44)
📝 mooncake-store/tests/CMakeLists.txt (+1 -0)
➕ mooncake-store/tests/tiered_backend_test.cpp (+1149 -0)

📄 Description

Description

Type of Change

Types
- Bug fix
- New feature
  - Transfer Engine
  - Mooncake Store
  - Mooncake EP
  - Integration
  - P2P Store
  - Python Wheel
- Breaking change
- CI/CD
- Documentation update
- Other

How Has This Been Tested?

Checklist

I have performed a self-review of my own code.
I have updated the documentation.
I have added tests to prove my changes are effective.

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/kvcache-ai/Mooncake/pull/1314 **Author:** [@YiXR](https://github.com/YiXR) **Created:** 12/31/2025 **Status:** ✅ Merged **Merged:** 1/8/2026 **Merged by:** [@wanyue-wy](https://github.com/wanyue-wy) **Base:** `P2P-Mooncake-Store` ← **Head:** `xinyi/tiered-backend-next` --- ### 📝 Commits (8) - [`fee0642`](https://github.com/kvcache-ai/Mooncake/commit/fee0642df64deb11805604ea7596d24a40a0abe4) [Store]: add dram tier support - [`6691a98`](https://github.com/kvcache-ai/Mooncake/commit/6691a9856acf51c4952fd1f8d3dcc54bbee14bcf) [Store]: add unit test for tiered backend - [`925fb18`](https://github.com/kvcache-ai/Mooncake/commit/925fb18b1121411cadfeef7fdb3e3b3f5a58c76c) [Store] Optimize TempDRAMBuffer with RAII memory management - [`b40bb82`](https://github.com/kvcache-ai/Mooncake/commit/b40bb82830480653db363e3d8b95bf317ff55013) [Store] optimize cache tier and backend api - [`81d6739`](https://github.com/kvcache-ai/Mooncake/commit/81d673979c107cb6b9e7611302560717b5ca3bc2) [Store] change uuid to CacheTier* in TieredLocation - [`80f5659`](https://github.com/kvcache-ai/Mooncake/commit/80f5659348e45433c44102547a46b150b5264791) [Store] Add wait handle logic in dram iter exit - [`90db6b6`](https://github.com/kvcache-ai/Mooncake/commit/90db6b61992a290c504b2f114da8ae2ffdae597a) [Store] update tiered backend init return code - [`751d5f6`](https://github.com/kvcache-ai/Mooncake/commit/751d5f6122af3ee8f7bbd91e8caf0e9358a50b13) [Store] tiered backend remove FreeInternal func ### 📊 Changes **9 files changed** (+1632 additions, -66 deletions) <details> <summary>View changed files</summary> 📝 `mooncake-store/include/tiered_cache/cache_tier.h` (+69 -10) ➕ `mooncake-store/include/tiered_cache/dram_tier.h` (+47 -0) 📝 `mooncake-store/include/tiered_cache/tiered_backend.h` (+5 -7) 📝 `mooncake-store/src/CMakeLists.txt` (+1 -0) 📝 `mooncake-store/src/tiered_cache/data_copier.cpp` (+52 -5) ➕ `mooncake-store/src/tiered_cache/dram_tier.cpp` (+199 -0) 📝 `mooncake-store/src/tiered_cache/tiered_backend.cpp` (+109 -44) 📝 `mooncake-store/tests/CMakeLists.txt` (+1 -0) ➕ `mooncake-store/tests/tiered_backend_test.cpp` (+1149 -0) </details> ### 📄 Description ## Description  ## Type of Change * Types - [ ] Bug fix - [ ] New feature - [ ] Transfer Engine - [ ] Mooncake Store - [ ] Mooncake EP - [ ] Integration - [ ] P2P Store - [ ] Python Wheel - [ ] Breaking change - [ ] CI/CD - [ ] Documentation update - [ ] Other ## How Has This Been Tested?  ## Checklist - [ ] I have performed a self-review of my own code. - [ ] I have updated the documentation. - [ ] I have added tests to prove my changes are effective. --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

bsakaguchi

closed this issue
added the
pull-request
label

Rows
Columns

[PR #1314] [MERGED] [Store] Tiered Backend add Dram tier support #2153