[CI][Perf] Add JSON mark support and paired parametrize for L4 perf, so as to further support performance‑case selection for NPU‑CI. (#5084)

Signed-off-by: wangyu <410167048@qq.com>
Signed-off-by: wangyu <53896905+yenuo26@users.noreply.github.com>

recipes/LTX/LTX-2.3.md

@@ -148,7 +148,7 @@ Do not copy latency or VRAM numbers between commits or machines. Record them
 only after running a latest-head sweep on the target hardware.
 
 For formal PR benchmarking, reuse
-`tests/dfx/perf/tests/test_ltx2_3_vllm_omni.json` with
-`tests/dfx/perf/scripts/run_diffusion_benchmark.py`. That config captures the
+`tests/dfx/perf/tests/test_ltx2_vllm_omni.json` with
+`tests/dfx/perf/scripts/run_diffusion_benchmark.py`. Each case in that file includes a JSON **`mark`** (`hardware_marks` + `full_model` + `diffusion`) for local `-m` filtering. That config captures the
 single-device eager baseline and CFG-parallel=2 case for a small 384x512,
 25-frame, 20-step workload.