EAGLE cache fix for HiCache (#11215)

python/sglang/srt/managers/schedule_policy.py

@@ -583,6 +583,7 @@ class PrefillAdder:
                 req.prefix_indices = torch.cat([req.prefix_indices, new_indices])
                 req.extend_input_len = len(req.fill_ids) - len(req.prefix_indices)
                 prefix_len = len(req.prefix_indices)
+                req.last_matched_prefix_len = prefix_len
 
             input_tokens = self.ceil_paged_tokens(req.extend_input_len)
 

python/sglang/srt/managers/scheduler.py

@@ -762,6 +762,7 @@ class Scheduler(
                     hicache_storage_prefetch_policy=server_args.hicache_storage_prefetch_policy,
                     model_name=server_args.served_model_name,
                     storage_backend_extra_config=server_args.hicache_storage_backend_extra_config,
+                    is_eagle=self.spec_algorithm.is_eagle(),
                 )
                 self.tp_worker.register_hicache_layer_transfer_counter(
                     self.tree_cache.cache_controller.layer_done_counter

python/sglang/srt/mem_cache/hiradix_cache.py

@@ -44,6 +44,7 @@ class HiRadixCache(RadixCache):
         hicache_storage_prefetch_policy: Optional[str] = "best_effort",
         model_name: Optional[str] = None,
         storage_backend_extra_config: Optional[str] = None,
+        is_eagle: bool = False,
     ):
 
         if hicache_io_backend == "direct":
@@ -135,6 +136,7 @@ class HiRadixCache(RadixCache):
             page_size,
             disable=False,
             eviction_policy=eviction_policy,
+            is_eagle=is_eagle,
         )
 
     def _parse_storage_backend_extra_config(
@@ -658,6 +660,7 @@ class HiRadixCache(RadixCache):
 
     def match_prefix(self, key: RadixKey, **kwargs):
         empty_value = torch.empty((0,), dtype=torch.int64, device=self.device)
+        key.token_ids = self.key_convert_fn(key.token_ids)
         if self.disable or len(key) == 0:
             return MatchResult(
                 device_indices=empty_value,
@@ -820,9 +823,15 @@ class HiRadixCache(RadixCache):
         return new_node
 
     def insert(self, key: RadixKey, value=None, chunked=False):
+        key.token_ids = self.key_convert_fn(key.token_ids)
+
         if len(key) == 0:
             return 0
 
+        if self.is_eagle and value is not None:
+            # Make sure the value len equal to the EAGLE bigram key len
+            value = value[: len(key)]
+
         node = self.root_node
         child_key = self.get_child_key_fn(key)
         total_prefix_length = 0

test/srt/hicache/test_hicache_eagle.py

+import unittest
+from types import SimpleNamespace
+
+import requests
+
+from sglang.bench_serving import get_tokenizer
+from sglang.srt.utils import kill_process_tree
+from sglang.test.run_eval import run_eval
+from sglang.test.test_utils import (
+    DEFAULT_EAGLE_TARGET_MODEL_FOR_TEST_EAGLE3,
+    DEFAULT_MODEL_NAME_FOR_TEST_EAGLE3,
+    DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
+    DEFAULT_URL_FOR_TEST,
+    CustomTestCase,
+    popen_launch_server,
+)
+
+
+class TestHiCacheEagle(CustomTestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.model = DEFAULT_EAGLE_TARGET_MODEL_FOR_TEST_EAGLE3
+        cls.base_url = DEFAULT_URL_FOR_TEST
+        cls.tokenizer = get_tokenizer(cls.model)
+        cls.process = popen_launch_server(
+            cls.model,
+            cls.base_url,
+            timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
+            other_args=[
+                "--enable-hierarchical-cache",
+                "--hicache-ratio",
+                1.2,
+                "--mem-fraction-static",
+                0.7,
+                "--speculative-algorithm",
+                "EAGLE3",
+                "--speculative-draft-model-path",
+                DEFAULT_MODEL_NAME_FOR_TEST_EAGLE3,
+                "--speculative-num-steps",
+                2,
+                "--speculative-eagle-topk",
+                1,
+                "--speculative-num-draft-tokens",
+                3,
+                "--dtype",
+                "float16",
+                "--chunked-prefill-size",
+                1024,
+            ],
+        )
+
+    @classmethod
+    def tearDownClass(cls):
+        kill_process_tree(cls.process.pid)
+
+    def test_mmlu(self):
+        args = SimpleNamespace(
+            base_url=self.base_url,
+            model=self.model,
+            eval_name="mmlu",
+            num_examples=64,
+            num_threads=32,
+        )
+
+        metrics = run_eval(args)
+        self.assertGreaterEqual(metrics["score"], 0.72)
+
+        server_info = requests.get(self.base_url + "/get_server_info")
+        print(f"{server_info=}")
+        avg_spec_accept_length = server_info.json()["internal_states"][0][
+            "avg_spec_accept_length"
+        ]
+        print(f"{avg_spec_accept_length=}")
+        self.assertGreater(avg_spec_accept_length, 2.26)
+
+
+if __name__ == "__main__":
+    unittest.main()

test/srt/run_suite.py

@@ -17,6 +17,7 @@ suites = {
         TestFile("hicache/test_hicache.py", 116),
         TestFile("hicache/test_hicache_mla.py", 127),
         TestFile("hicache/test_hicache_storage.py", 127),
+        TestFile("hicache/test_hicache_eagle.py", 150),
         TestFile("lora/test_lora.py", 200),
         TestFile("lora/test_lora_eviction.py", 200),
         TestFile("lora/test_lora_backend.py", 99),