UPSTREAM PR #21283: [SYCL] fix llama_kv_cache hang when kv_cache is huge: 5GB#1326
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UPSTREAM PR #21283: [SYCL] fix llama_kv_cache hang when kv_cache is huge: 5GB#1326
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No meaningful performance changes were detected across 123165 analyzed functions in the following binaries: build.bin.libllama.so, build.bin.llama-bench, build.bin.libmtmd.so, build.bin.llama-cvector-generator, build.bin.llama-tts, build.bin.llama-quantize, build.bin.llama-qwen2vl-cli, build.bin.llama-tokenize, build.bin.llama-gemma3-cli, build.bin.llama-gguf-split, build.bin.llama-llava-cli, build.bin.llama-minicpmv-cli, build.bin.libggml-base.so, build.bin.libggml-cpu.so, build.bin.libggml.so. 🔎 Full breakdown: Loci Inspector |
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Source pull request: ggml-org/llama.cpp#21283
In llama_kv_cache, when the cache size is huge, like 5GB, the code will hang.
The root cause is the memset() can't support more than 4GB.
Verified on Arc770.