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Efficient deployment of Large Language Models (LLMs) requires batching multiple requests together to improve throughput. As the batch size, context length, or model size increases, the size of the key and value (KV) cache can quickly become…

Machine Learning · Computer Science 2024-05-08 Tianyi Zhang , Jonah Yi , Zhaozhuo Xu , Anshumali Shrivastava

Being more powerful and intrusive into user-device interactions, LLMs are eager for on-device execution to better preserve user privacy. In this work, we propose a new paradigm of mobile AI: LLM as a system service on mobile devices…

Operating Systems · Computer Science 2024-03-19 Wangsong Yin , Mengwei Xu , Yuanchun Li , Xuanzhe Liu

Large Language Models (LLMs) are increasingly deployed in scenarios demanding ultra-long context reasoning, such as agentic workflows and deep research understanding. However, long-context inference is constrained by the KV cache, a…

Hardware Architecture · Computer Science 2026-03-11 Jianlong Lei , Shashikant Ilager

The linear memory growth of the KV cache poses a significant bottleneck for LLM inference in long-context tasks. Existing static compression methods often fail to preserve globally important information. Although recent dynamic retrieval…

Computation and Language · Computer Science 2026-04-21 Zhiyuan Shi , Qibo Qiu , Feng Xue , Zhonglin Jiang , Li Yu , Jian Jiang , Xiaofei He , Wenxiao Wang

With the growing demand for long-context LLMs across a wide range of applications, the key-value (KV) cache has become a critical bottleneck for both latency and memory usage. Recently, KV-cache offloading has emerged as a promising…

Machine Learning · Computer Science 2026-05-18 Andrey Bocharnikov , Ivan Ermakov , Denis Kuznedelev , Vyacheslav Zhdanovskiy , Yegor Yershov

Reinforcement Learning (RL) has emerged as a crucial paradigm for unlocking the advanced reasoning capabilities of Large Language Models (LLMs), encompassing frameworks like RLHF and RLAIF. Regardless of the specific optimization algorithm…

Machine Learning · Computer Science 2026-05-11 Rui Zhu , Weiheng Bai , Qiushi Wu , Yang Ren , Haixu Tang , Yuchu Liu

Processing long-context inputs with large language models presents a significant challenge due to the enormous memory requirements of the Key-Value (KV) cache during inference. Existing KV cache compression methods exhibit noticeable…

Computation and Language · Computer Science 2025-07-29 Dongquan Yang , Yifan Yang , Xiaotian Yu , Xianbiao Qi , Rong Xiao

In modern Commercial Off-The-Shelf (COTS) multicore systems, each core can generate many parallel memory requests at a time. The processing of these parallel requests in the DRAM controller greatly affects the memory interference delay…

Distributed, Parallel, and Cluster Computing · Computer Science 2014-07-29 Heechul Yun

Multi-agent applications utilize the advanced capabilities of large language models (LLMs) for intricate task completion through agent collaboration in a workflow. Under this situation, requests from different agents usually access the same…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-08-12 Jinyuan Chen , Jiuchen Shi , Quan Chen , Minyi Guo

Large language models (LLMs) rely on Key-Value (KV) cache to reduce time-to-first-token (TTFT) latency, but existing disk-based KV cache systems using file-per-object layouts suffer from severe scalability bottlenecks due to file system…

Databases · Computer Science 2025-11-26 Weiping Yu , Ye Jiarui , He Mengke , Junfeng Liu , Siqiang Luo

The advent of pre-trained large language models (LLMs) has revolutionized various natural language processing tasks. These models predominantly employ an auto-regressive decoding mechanism that utilizes Key-Value (KV) caches to eliminate…

Computation and Language · Computer Science 2024-06-12 Hao Yu , Zelan Yang , Shen Li , Yong Li , Jianxin Wu

Multi model inference has recently emerged as a prominent paradigm, particularly in the development of agentic AI systems. However, in such scenarios, each model must maintain its own Key-Value (KV) cache for the identical prompt, leading…

Efficient inference of large language models (LLMs) is hindered by an ever-growing key-value (KV) cache, making KV cache compression a critical research direction. Traditional methods selectively evict less important KV cache entries, which…

Machine Learning · Computer Science 2025-12-01 Yuxuan Tian , Zihan Wang , Yebo Peng , Aomufei Yuan , Zhiming Wang , Bairen Yi , Xin Liu , Yong Cui , Tong Yang

Long-running agentic tasks, such as deep research, require multi-hop reasoning over information distributed across multiple webpages and documents. In such tasks, the LLM context is dominated by tokens from external retrieval, causing…

Artificial Intelligence · Computer Science 2026-03-03 Sanjay Kariyappa , G. Edward Suh

Long-horizon LLM inference turns the key--value (KV) cache into the dominant GPU memory consumer and makes per-token attention increasingly expensive. Many common eviction policies use static recency windows or historical attention, leaving…

Machine Learning · Computer Science 2026-05-26 Yubo Li , Yidi Miao

Large language models (LLMs) support long-context inference but suffer from substantial memory and runtime overhead due to Key-Value (KV) Cache growth. Existing KV Cache eviction methods primarily rely on local attention weights, neglecting…

Computation and Language · Computer Science 2026-05-11 Tho Mai , Joo-Young Kim

The large size of the KV cache has become a major bottleneck for serving LLMs with increasing context lengths. In response, many KV cache compression methods, such as token dropping and quantization, have been proposed. However, almost all…

Hardware Architecture · Computer Science 2026-05-19 Jiayi Yao , Samuel Shen , Kuntai Du , Shaoting Feng , Dongjoo Seo , Rui Zhang , Yuyang Huang , Yuhan Liu , Shan Lu , Junchen Jiang

Communication in Large Language Model (LLM)-based multi-agent systems is moving beyond discrete tokens to preserve richer context. Recent work such as LatentMAS enables agents to exchange latent messages through full key-value (KV) caches.…

Machine Learning · Computer Science 2026-04-16 Yiping Li , Zhiyu An , Wan Du

Recently, significant progress has been made in developing reasoning-capable Large Language Models (LLMs) through long Chain-of-Thought (CoT) techniques. However, this long-CoT reasoning process imposes substantial memory overhead due to…

Computation and Language · Computer Science 2025-05-27 Tengxuan Liu , Shiyao Li , Jiayi Yang , Tianchen Zhao , Feng Zhou , Xiaohui Song , Guohao Dai , Shengen Yan , Huazhong Yang , Yu Wang

While Key-Value (KV) cache succeeds in reducing redundant computations in auto-regressive models, it introduces significant memory overhead, limiting its practical deployment in long-sequence scenarios. Existing KV retrieval methods…

Machine Learning · Computer Science 2025-10-14 Wenbo Wu , Qingyi Si , Xiurui Pan , Ye Wang , Jie Zhang