diff --git a/.buildkite/run-cpu-test-ppc64le.sh b/.buildkite/run-cpu-test-ppc64le.sh
index 5add7ff0c15c9..cd2bfd8bb5bf4 100755
--- a/.buildkite/run-cpu-test-ppc64le.sh
+++ b/.buildkite/run-cpu-test-ppc64le.sh
@@ -17,30 +17,35 @@ source /etc/environment
 #docker run -itd --entrypoint /bin/bash -v ~/.cache/huggingface:/root/.cache/huggingface --privileged=true --network host -e HF_TOKEN --env VLLM_CPU_KVCACHE_SPACE=4 --shm-size=4g --name cpu-test cpu-test
 docker run -itd --entrypoint /bin/bash -v ~/.cache/huggingface:/root/.cache/huggingface --privileged=true --network host -e HF_TOKEN="$HF_TOKEN" --name cpu-test cpu-test
 
-# Run basic model test
-docker exec cpu-test bash -c "
-  set -e
-  pip install pytest pytest-asyncio \
-    decord einops librosa peft Pillow sentence-transformers soundfile \
-    transformers_stream_generator matplotlib datamodel_code_generator
-  pip install torchvision --index-url https://download.pytorch.org/whl/cpu
-  # Embedding models are not supported for CPU yet
-  # pytest -v -s tests/models/embedding/language
-  pytest -v -s tests/models/encoder_decoder/language
-  pytest -v -s tests/models/decoder_only/language/test_models.py
-  # Chunked prefill not supported for CPU yet
-  # pytest -v -s tests/models/decoder_only/audio_language -m cpu_model
-  pytest -v -s tests/models/decoder_only/vision_language -m cpu_model"
+function cpu_tests() {
+  # Run basic model test
+  docker exec cpu-test bash -c "
+    set -e
+    pip install pytest pytest-asyncio \
+      decord einops librosa peft Pillow sentence-transformers soundfile \
+      transformers_stream_generator matplotlib datamodel_code_generator
+    pip install torchvision --index-url https://download.pytorch.org/whl/cpu
+    # Embedding models are not supported for CPU yet
+    # pytest -v -s tests/models/embedding/language
+    pytest -v -s tests/models/encoder_decoder/language
+    pytest -v -s tests/models/decoder_only/language/test_models.py
+    pytest -v -s tests/models/decoder_only/audio_language -m cpu_model
+    pytest -v -s tests/models/decoder_only/vision_language -m cpu_model"
 
-# online inference
-docker exec cpu-test bash -c "
-  set -e
-  python3 -m vllm.entrypoints.openai.api_server --model facebook/opt-125m & 
-  timeout 600 bash -c 'until curl localhost:8000/v1/models; do sleep 1; done' || exit 1
-  python3 benchmarks/benchmark_serving.py \
-    --backend vllm \
-    --dataset-name random \
-    --model facebook/opt-125m \
-    --num-prompts 20 \
-    --endpoint /v1/completions \
-    --tokenizer facebook/opt-125m"
+  # online inference
+  docker exec cpu-test bash -c "
+    set -e
+    python3 -m vllm.entrypoints.openai.api_server --model facebook/opt-125m & 
+    timeout 600 bash -c 'until curl localhost:8000/v1/models; do sleep 1; done' || exit 1
+    python3 benchmarks/benchmark_serving.py \
+      --backend vllm \
+      --dataset-name random \
+      --model facebook/opt-125m \
+      --num-prompts 20 \
+      --endpoint /v1/completions \
+      --tokenizer facebook/opt-125m"
+}
+
+# All of CPU tests are expected to be finished less than 25 mins.
+export -f cpu_tests
+timeout 25m bash -c "cpu_tests"
diff --git a/.buildkite/run-cpu-test.sh b/.buildkite/run-cpu-test.sh
index 25a448e63be27..8d4f4d1a681f2 100644
--- a/.buildkite/run-cpu-test.sh
+++ b/.buildkite/run-cpu-test.sh
@@ -19,50 +19,55 @@ docker run -itd --entrypoint /bin/bash -v ~/.cache/huggingface:/root/.cache/hugg
 docker run -itd --entrypoint /bin/bash -v ~/.cache/huggingface:/root/.cache/huggingface --cpuset-cpus=48-95 \
  --cpuset-mems=1 --privileged=true --network host -e HF_TOKEN --env VLLM_CPU_KVCACHE_SPACE=4 --shm-size=4g --name cpu-test-avx2 cpu-test-avx2
 
-# offline inference
-docker exec cpu-test-avx2 bash -c "
-  set -e
-  python3 examples/offline_inference.py"
+function cpu_tests() {
+  # offline inference
+  docker exec cpu-test-avx2 bash -c "
+    set -e
+    python3 examples/offline_inference.py"
 
-# Run basic model test
-docker exec cpu-test bash -c "
-  set -e
-  pip install pytest pytest-asyncio \
-    decord einops librosa peft Pillow sentence-transformers soundfile \
-    transformers_stream_generator matplotlib datamodel_code_generator
-  pip install torchvision --index-url https://download.pytorch.org/whl/cpu
-  # Embedding models are not supported for CPU yet
-  # pytest -v -s tests/models/embedding/language
-  pytest -v -s tests/models/encoder_decoder/language
-  pytest -v -s tests/models/decoder_only/language/test_models.py
-  # Chunked prefill not supported for CPU yet
-  # pytest -v -s tests/models/decoder_only/audio_language -m cpu_model
-  pytest -v -s tests/models/decoder_only/vision_language -m cpu_model"
+  # Run basic model test
+  docker exec cpu-test bash -c "
+    set -e
+    pip install pytest pytest-asyncio \
+      decord einops librosa peft Pillow sentence-transformers soundfile \
+      transformers_stream_generator matplotlib datamodel_code_generator
+    pip install torchvision --index-url https://download.pytorch.org/whl/cpu
+    # Embedding models are not supported for CPU yet
+    # pytest -v -s tests/models/embedding/language
+    pytest -v -s tests/models/encoder_decoder/language
+    pytest -v -s tests/models/decoder_only/language/test_models.py
+    pytest -v -s tests/models/decoder_only/audio_language -m cpu_model
+    pytest -v -s tests/models/decoder_only/vision_language -m cpu_model"
 
-# Run compressed-tensor test
-docker exec cpu-test bash -c "
-  set -e
-  pytest -s -v \
-  tests/quantization/test_compressed_tensors.py::test_compressed_tensors_w8a8_static_setup \
-  tests/quantization/test_compressed_tensors.py::test_compressed_tensors_w8a8_dynamic_per_token"
+  # Run compressed-tensor test
+  docker exec cpu-test bash -c "
+    set -e
+    pytest -s -v \
+    tests/quantization/test_compressed_tensors.py::test_compressed_tensors_w8a8_static_setup \
+    tests/quantization/test_compressed_tensors.py::test_compressed_tensors_w8a8_dynamic_per_token"
 
-# Run AWQ test
-docker exec cpu-test bash -c "
-  set -e
-  pytest -s -v \
-  tests/quantization/test_ipex_quant.py"
+  # Run AWQ test
+  docker exec cpu-test bash -c "
+    set -e
+    pytest -s -v \
+    tests/quantization/test_ipex_quant.py"
 
-# online inference
-docker exec cpu-test bash -c "
-  set -e
-  export VLLM_CPU_KVCACHE_SPACE=10 
-  export VLLM_CPU_OMP_THREADS_BIND=48-92 
-  python3 -m vllm.entrypoints.openai.api_server --model facebook/opt-125m --dtype half & 
-  timeout 600 bash -c 'until curl localhost:8000/v1/models; do sleep 1; done' || exit 1
-  python3 benchmarks/benchmark_serving.py \
-    --backend vllm \
-    --dataset-name random \
-    --model facebook/opt-125m \
-    --num-prompts 20 \
-    --endpoint /v1/completions \
-    --tokenizer facebook/opt-125m"
+  # online inference
+  docker exec cpu-test bash -c "
+    set -e
+    export VLLM_CPU_KVCACHE_SPACE=10 
+    export VLLM_CPU_OMP_THREADS_BIND=48-92 
+    python3 -m vllm.entrypoints.openai.api_server --model facebook/opt-125m --dtype half & 
+    timeout 600 bash -c 'until curl localhost:8000/v1/models; do sleep 1; done' || exit 1
+    python3 benchmarks/benchmark_serving.py \
+      --backend vllm \
+      --dataset-name random \
+      --model facebook/opt-125m \
+      --num-prompts 20 \
+      --endpoint /v1/completions \
+      --tokenizer facebook/opt-125m"
+}
+
+# All of CPU tests are expected to be finished less than 25 mins.
+export -f cpu_tests
+timeout 25m bash -c "cpu_tests"