perf(eval): case/rule/campaign 并发执行

- EvalEngine case 循环改 asyncio.gather + semaphore（默认 3 并发）
- 规则评估并行（默认 5 并发），LLM 评分耗时从串行求和降为最慢一条
- _resolve_model 改 async + 双重检查锁，保护共享模型缓存
- _case_errors / case_outcomes 并发写入加状态锁
- Campaign occurrence 派生并行（默认 2 并发），claim 拒绝时提前收敛
- 新增配置：max_concurrent_cases=3 / max_concurrent_rules=5 / max_concurrent_runs=2

SQLite StaticPool 单连接下 DB 写入仍天然串行，并行收益集中在
channel I/O 与 LLM 调用的等待重叠。

backend/agenteval/config/settings.py

@@ -81,6 +81,18 @@ class Settings(BaseSettings):
         default=30.0,
         description="Seconds to wait for the target's reply per turn before recording no-reply.",
     )
+    max_concurrent_cases: int = Field(
+        default=3,
+        description="Max cases running concurrently within a single eval run.",
+    )
+    max_concurrent_rules: int = Field(
+        default=5,
+        description="Max rules evaluated concurrently within a single case.",
+    )
+    max_concurrent_runs: int = Field(
+        default=2,
+        description="Max child Runs spawned concurrently per campaign plan entry.",
+    )
 
     # ── Webhook ────────────────────────────────────────────────────
     webhook_url: Optional[str] = Field(

backend/agenteval/evaluation/campaign_runner.py

@@ -21,6 +21,7 @@ from typing import Awaitable, Callable, Optional
 
 from sqlmodel import Session
 
+from agenteval.config import get_settings
 from agenteval.evaluation.campaign_lifecycle import complete_campaign
 from agenteval.evaluation.campaign_lifecycle import start_campaign as start_campaign_lifecycle
 from agenteval.evaluation.campaign_scheduler import (
@@ -121,7 +122,12 @@ async def _execute_child_run(
     target = TargetRepository(session).get(campaign.target_id)
     if not target:
         raise ValueError(f"campaign target missing: {campaign.target_id}")
-    engine = EvalEngine(target=target, scenario=scenario, triggered_by=RunTrigger.CAMPAIGN)
+    engine = EvalEngine(
+        target=target,
+        scenario=scenario,
+        triggered_by=RunTrigger.CAMPAIGN,
+        max_concurrent_cases=get_settings().max_concurrent_cases,
+    )
     await engine.run(existing_run=run)
 
 
@@ -194,14 +200,18 @@ async def _advance_campaign(
 
     result = AdvanceResult(finished=decision.finished)
     errors: list[dict] = list(campaign.summary.scheduler.errors) if campaign.summary else []
+    run_semaphore = asyncio.Semaphore(max(1, get_settings().max_concurrent_runs))
     for due in decision.due:
         # Cancellation stops further spawning; runs already in flight finish.
         if cancel_event is not None and cancel_event.is_set():
             break
         claim_rejected = False
-        try:
+
-            for occurrence_index in range(due.entry.count):
+        async def _spawn_one(occurrence_index: int) -> Optional[str]:
-                run_id = await _spawn_child_run(
+            async with run_semaphore:
+                if claim_rejected:
+                    return None
+                return await _spawn_child_run(
                     campaign,
                     due.entry.scenario_id,
                     plan_index=due.index,
@@ -209,6 +219,11 @@ async def _advance_campaign(
                     session=session,
                     execute_child_run=execute_child_run,
                 )
+
+        try:
+            tasks = [_spawn_one(i) for i in range(due.entry.count)]
+            run_ids = await asyncio.gather(*tasks)
+            for run_id in run_ids:
                 if run_id is None:
                     claim_rejected = True
                     break

backend/agenteval/evaluation/engine.py

@@ -114,6 +114,10 @@ class EvalEngine:
         )
         self.triggered_by = triggered_by
         self._case_semaphore = asyncio.Semaphore(max(1, max_concurrent_cases))
+        self._rule_semaphore = asyncio.Semaphore(
+            max(1, get_settings().max_concurrent_rules),
+        )
+        self._state_lock = asyncio.Lock()
         # Collects fatal case-level errors (e.g. dynamic message generation
         # failures) so their cause is persisted into run.summary — not just
         # emitted transiently over WebSocket.
@@ -155,7 +159,7 @@ class EvalEngine:
             total_cases = len(self.scenario.cases)
             case_outcomes: dict[str, CaseOutcome] = {}
 
-            for idx, case in enumerate(self.scenario.cases, start=1):
+            async def _case_worker(idx: int, case: Case) -> None:
                 self._check_cancel()
                 await self._emit(
                     progress_callback,
@@ -172,6 +176,7 @@ class EvalEngine:
                         case,
                         progress_callback,
                     )
+                async with self._state_lock:
                     case_outcomes[case.id] = outcome
                 await self._emit(
                     progress_callback,
@@ -186,6 +191,21 @@ class EvalEngine:
                     },
                 )
 
+            workers = [
+                _case_worker(idx, case)
+                for idx, case in enumerate(self.scenario.cases, start=1)
+            ]
+            try:
+                await asyncio.gather(*workers)
+            except Exception:
+                raise
+
+            async with self._state_lock:
+                resolved_snapshot = {
+                    purpose.value: config.snapshot()
+                    for purpose, config in self._resolved_models.items()
+                }
+
             results = self.run_repo.get_results(run.id)
             turns = self.run_repo.get_turns(run.id)
             summary = build_run_summary(
@@ -193,11 +213,7 @@ class EvalEngine:
                 latencies=[t.latency_ms for t in turns if t.latency_ms is not None],
                 rule_passes=[r.passed for r in results],
                 case_errors=self._case_errors or None,
-                model_configs=(
+                model_configs=resolved_snapshot or None,
-                    {purpose.value: config.snapshot() for purpose, config in self._resolved_models.items()}
-                    if self._resolved_models
-                    else None
-                ),
             )
             run.status = RunStatus.COMPLETED
             run.completed_at = utc_now()
@@ -445,10 +461,15 @@ class EvalEngine:
         implicit_outcomes: list[RuleOutcome] = []
 
         all_rules = [(cfg, False) for cfg in rules_config] + [(cfg, True) for cfg in implicit_config]
-        for rule_config, is_implicit in all_rules:
+
+        async def _eval_one(
+            rule_config: EvalRuleConfig,
+            is_implicit: bool,
+        ) -> tuple[EvalRuleConfig, bool, RuleResult]:
+            async with self._rule_semaphore:
                 purpose = RULE_PURPOSE.get(rule_config.type)
                 try:
-                model_config = self._resolve_model(purpose) if purpose else None
+                    model_config = await self._resolve_model(purpose) if purpose else None
                     rule = get_rule(
                         rule_config.type,
                         rule_config.params,
@@ -458,6 +479,18 @@ class EvalEngine:
                     result = await rule.evaluate(case, dialog)
                 except Exception as exc:
                     result = RuleResult(passed=False, reason=f"模型配置解析失败: {exc}")
+                return rule_config, is_implicit, result
+
+        rule_results = await asyncio.gather(
+            *[_eval_one(cfg, is_impl) for cfg, is_impl in all_rules]
+        )
+
+        passed_count = 0
+        total_count = 0
+        explicit_outcomes: list[RuleOutcome] = []
+        implicit_outcomes: list[RuleOutcome] = []
+
+        for rule_config, is_implicit, result in rule_results:
             reason = f"[期望] {result.reason}" if is_implicit else result.reason
             eval_result = EvalResult(
                 id=str(uuid.uuid4()),
@@ -513,6 +546,7 @@ class EvalEngine:
         async def _fail(msg: str) -> list[str]:
             # Persist the reason into run-level case_errors (surfaced in summary),
             # not just a transient WebSocket emit that's lost after the run.
+            async with self._state_lock:
                 self._case_errors.append({"case_id": case.id, "stage": "generate_messages", "error": msg})
             await self._emit(progress_callback, "error", {"error": msg, "case_id": case.id})
             return []
@@ -533,7 +567,7 @@ class EvalEngine:
         ]
 
         try:
-            model_config = self._resolve_model(ModelPurpose.GENERATOR)
+            model_config = await self._resolve_model(ModelPurpose.GENERATOR)
             if model_config:
                 content = await self.model_gateway.chat(model_config, messages_payload, temperature=0.7)
             else:
@@ -589,9 +623,12 @@ class EvalEngine:
             raise ValueError("LLM 返回内容为空或无法解析")
         return content
 
-    def _resolve_model(self, purpose: ModelPurpose | None) -> ModelRuntimeConfig | None:
+    async def _resolve_model(self, purpose: ModelPurpose | None) -> ModelRuntimeConfig | None:
         if purpose is None:
             return None
+        if purpose in self._resolved_models:
+            return self._resolved_models[purpose]
+        async with self._state_lock:
             if purpose in self._resolved_models:
                 return self._resolved_models[purpose]
             config_id = self.scenario.model_bindings.get(purpose)

backend/agenteval/services/runs.py

@@ -10,6 +10,7 @@ import asyncio
 
 from sqlmodel import Session
 
+from agenteval.config import get_settings
 from agenteval.evaluation.case_verdict import build_case_evidence, resolve_case_verdicts
 from agenteval.evaluation.engine import EvalEngine
 from agenteval.models import EvalRun, RunStatus, RunSummary, RunTrigger
@@ -61,6 +62,7 @@ async def execute_run(
             scenario=scenario,
             session=session,
             cancel_token=cancel_token,
+            max_concurrent_cases=get_settings().max_concurrent_cases,
         )
         await engine.run(progress_callback=on_progress, existing_run=existing_run)
         # Fire webhook after run completes (non-blocking, best-effort)