running 1 test
test engine::metal::qwen_mtplx::owner::issue111_product::issue111_token_prefix_cache ... ds4: Metal device Apple M5 Max, 128.00 GiB RAM
ds4: Metal 4 tensor API enabled for Tensor kernels
ds4: drift-patch flags hc_stable=on norm_unify=on kv_raw_f32=off rope_exp2_log2=off math_safe=off tensor_matmul=on
ds4: Qwen reference kernels: Powered by MTPLX — https://github.com/youssofal/mtplx
[qwen4_exp] ngram table: streamed from SSD (file-backed pages, hot cache 1023M, prefetch on) — resident only at >=160G RAM or MTPLX_NGRAM_RESIDENT=1
[mtplx] verify SDPA head-chunked: q_len=24 heads_per_chunk=1 chunks=24
{"case":"token_cache","old_tokens":89,"new_tokens":93,"old_prefix_miss":true,"warm_cached":95,"disk_cached":95,"warm_disk_state_exact":true}
ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 554 filtered out; finished in 16.10s