CS348Project/llama.cpp
5
0
Fork 0
mirror of https://github.com/ggml-org/llama.cpp.git synced 2025-11-01 09:01:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

kv-cache : refactor the update/defrag mechanism (#13988)

Browse Source 
* kv-cache : refactor update mechanism

ggml-ci

* memory : improve status handling

* defrag : reset head + add comments

ggml-ci

* cont : minor fixes

ggml-ci
This commit is contained in:
Georgi Gerganov
2025-06-04 18:58:20 +03:00
committed by GitHub
parent 2589ad3704
commit 3e63a58ef7
11 changed files with 340 additions and 191 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
src/llama-kv-cache.h
View File

@@ -1,12 +1,16 @@
#pragma once
#include "llama.h"
#include "llama-io.h"
#include "llama-memory.h"
class llama_io_write_i;
class llama_io_read_i;
struct llama_kv_cache : public llama_memory_i {
virtual ~llama_kv_cache() = default;
// TODO: move the init_ interfaces to llama_memory_i
// split the input batch into a set of ubatches and verify that they can fit into the cache
// return a state object containing the ubatches and KV cache state required to process them
// check the llama_memory_state_i::get_status() for the result
@@ -19,16 +23,9 @@ struct llama_kv_cache : public llama_memory_i {
// simulate full cache, used for allocating worst-case compute buffers
virtual llama_memory_state_ptr init_full() = 0;
// process any pending defrag/shift/etc. operations
// optionally call once before processing a new batch
// return true if any operations were performed
virtual bool update(llama_context & lctx) = 0;
// schedule a defrag if the fragmentation threshold is exceeded. otherwise, do nothing
// TODO: change to
// llama_memory_state_ptr init_defrag(float thold) = 0;
//
virtual void defrag_sched(float thold) = 0;
// prepare for any pending memory updates, such as shifts, defrags, etc.
// status == LLAMA_MEMORY_STATUS_NO_UPDATE if there is nothing to update
virtual llama_memory_state_ptr init_update(llama_context * lctx, bool optimize) = 0;
// getters
virtual bool get_can_shift() const = 0;