From 088d6d943e2669426a1b410e438e9da3a29f1203 Mon Sep 17 00:00:00 2001
From: Junjie <fallin.jie@qq.com>
Date: 星期二, 14 四月 2026 08:57:35 +0800
Subject: [PATCH] #算法耗时优化loadLoopMergeGuardContext增加缓存
---
src/main/java/com/zy/common/utils/NavigateUtils.java | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++++---
1 files changed, 108 insertions(+), 6 deletions(-)
diff --git a/src/main/java/com/zy/common/utils/NavigateUtils.java b/src/main/java/com/zy/common/utils/NavigateUtils.java
index a36d2bc..8d5ef42 100644
--- a/src/main/java/com/zy/common/utils/NavigateUtils.java
+++ b/src/main/java/com/zy/common/utils/NavigateUtils.java
@@ -55,7 +55,7 @@
public class NavigateUtils {
private static final long STATION_PATH_SLOW_LOG_THRESHOLD_MS = 500L;
- private static final long STATION_PATH_RUNTIME_SNAPSHOT_TTL_MS = 200L;
+ private static final long STATION_PATH_RUNTIME_SNAPSHOT_TTL_MS = 2000L;
private static final double CONGESTION_BUSY_BASE = 1.0d;
private static final double CONGESTION_ISSUED_RESERVE_BASE = 0.75d;
private static final double CONGESTION_PENDING_QUEUE_BASE = 0.45d;
@@ -79,6 +79,9 @@
private final Object runtimeSnapshotLock = new Object();
private volatile CachedStationPathRuntimeSnapshot cachedRuntimeSnapshot;
+
+ private final Object loopMergeGuardLock = new Object();
+ private volatile CachedLoopMergeGuardContext cachedLoopMergeGuardContext;
public List<NavigateNode> calcOptimalPathByStationId(Integer startStationId,
Integer endStationId,
@@ -1701,7 +1704,7 @@
if (stepCostMap != null) {
stepCostMap.put("buildBaseSnapshot", elapsedMillis(stepStartNs));
}
- cachedRuntimeSnapshot = new CachedStationPathRuntimeSnapshot(now, baseRuntimeSnapshot);
+ cachedRuntimeSnapshot = new CachedStationPathRuntimeSnapshot(System.currentTimeMillis(), baseRuntimeSnapshot);
return baseRuntimeSnapshot;
}
}
@@ -1732,7 +1735,7 @@
}
stepStartNs = System.nanoTime();
- List<StationTaskTraceVo> activeTraceList = Collections.unmodifiableList(new ArrayList<>(loadPlanningActiveTraceList(statusMap)));
+ List<StationTaskTraceVo> activeTraceList = Collections.unmodifiableList(new ArrayList<>(loadPlanningActiveTraceList(statusMap, stepCostMap)));
if (stepCostMap != null) {
stepCostMap.put("loadActiveTraceList", elapsedMillis(stepStartNs));
}
@@ -1766,6 +1769,23 @@
}
private LoopMergeGuardContext loadLoopMergeGuardContext() {
+ long now = System.currentTimeMillis();
+ CachedLoopMergeGuardContext cached = cachedLoopMergeGuardContext;
+ if (cached != null && now - cached.cacheAtMs <= STATION_PATH_RUNTIME_SNAPSHOT_TTL_MS) {
+ return new LoopMergeGuardContext(cached.context);
+ }
+ synchronized (loopMergeGuardLock) {
+ cached = cachedLoopMergeGuardContext;
+ if (cached != null && now - cached.cacheAtMs <= STATION_PATH_RUNTIME_SNAPSHOT_TTL_MS) {
+ return new LoopMergeGuardContext(cached.context);
+ }
+ LoopMergeGuardContext context = buildLoopMergeGuardContext();
+ cachedLoopMergeGuardContext = new CachedLoopMergeGuardContext(System.currentTimeMillis(), context);
+ return new LoopMergeGuardContext(context);
+ }
+ }
+
+ private LoopMergeGuardContext buildLoopMergeGuardContext() {
LoopMergeGuardContext context = new LoopMergeGuardContext();
try {
if (stationCycleCapacityService == null) {
@@ -2138,10 +2158,19 @@
}
private List<StationTaskTraceVo> loadPlanningActiveTraceList(Map<Integer, StationProtocol> statusMap) {
+ return loadPlanningActiveTraceList(statusMap, null);
+ }
+
+ private List<StationTaskTraceVo> loadPlanningActiveTraceList(Map<Integer, StationProtocol> statusMap,
+ Map<String, Long> stepCostMap) {
Map<Integer, StationTaskTraceVo> traceMap = new LinkedHashMap<>();
if (stationTaskTraceRegistry != null) {
try {
- List<StationTaskTraceVo> traceList = stationTaskTraceRegistry.listLatestTraces();
+ long stepStartNs = System.nanoTime();
+ List<StationTaskTraceVo> traceList = stationTaskTraceRegistry.listPlanningActiveTraceSnapshots();
+ if (stepCostMap != null) {
+ stepCostMap.put("loadRegistryTraces", elapsedMillis(stepStartNs));
+ }
if (traceList != null) {
for (StationTaskTraceVo traceVo : traceList) {
if (!isPlanningActiveTrace(traceVo)) {
@@ -2155,7 +2184,11 @@
} catch (Exception ignore) {
}
}
- Map<Integer, StationTaskTraceVo> fallbackTraceMap = loadFallbackActiveTraceMap(null, statusMap, traceMap.keySet());
+ long stepStartNs = System.nanoTime();
+ Map<Integer, StationTaskTraceVo> fallbackTraceMap = buildProtocolFallbackTraceMap(statusMap, traceMap.keySet());
+ if (stepCostMap != null) {
+ stepCostMap.put("loadFallbackTraces", elapsedMillis(stepStartNs));
+ }
if (!fallbackTraceMap.isEmpty()) {
traceMap.putAll(fallbackTraceMap);
}
@@ -2170,6 +2203,55 @@
return StationTaskTraceRegistry.STATUS_WAITING.equals(status)
|| StationTaskTraceRegistry.STATUS_RUNNING.equals(status)
|| StationTaskTraceRegistry.STATUS_REROUTED.equals(status);
+ }
+
+ private Map<Integer, StationTaskTraceVo> buildProtocolFallbackTraceMap(Map<Integer, StationProtocol> statusMap,
+ Set<Integer> existingTaskNoSet) {
+ if (statusMap == null || statusMap.isEmpty()) {
+ return Collections.emptyMap();
+ }
+ Map<Integer, StationTaskTraceVo> result = new LinkedHashMap<>();
+ for (StationProtocol protocol : statusMap.values()) {
+ if (protocol == null || protocol.getTaskNo() == null || protocol.getTaskNo() <= 0) {
+ continue;
+ }
+ if (!Boolean.TRUE.equals(protocol.isLoading())) {
+ continue;
+ }
+ if (existingTaskNoSet != null && existingTaskNoSet.contains(protocol.getTaskNo())) {
+ continue;
+ }
+ Integer stationId = protocol.getStationId();
+ Integer targetStaNo = protocol.getTargetStaNo();
+ if (stationId == null || targetStaNo == null || stationId.equals(targetStaNo)) {
+ continue;
+ }
+ List<Integer> path = new ArrayList<>();
+ path.add(stationId);
+ path.add(targetStaNo);
+ List<Integer> pendingStationIds = new ArrayList<>();
+ pendingStationIds.add(targetStaNo);
+ StationTaskTraceVo vo = new StationTaskTraceVo();
+ vo.setTaskNo(protocol.getTaskNo());
+ vo.setThreadImpl("PROTOCOL_FALLBACK");
+ vo.setStatus(StationTaskTraceRegistry.STATUS_RUNNING);
+ vo.setTraceVersion(1);
+ vo.setStartStationId(stationId);
+ vo.setCurrentStationId(stationId);
+ vo.setFinalTargetStationId(targetStaNo);
+ vo.setFullPathStationIds(path);
+ vo.setIssuedStationIds(path);
+ vo.setPassedStationIds(Collections.emptyList());
+ vo.setPendingStationIds(pendingStationIds);
+ vo.setLatestIssuedSegmentPath(path);
+ vo.setSegmentList(Collections.emptyList());
+ vo.setIssuedSegmentCount(0);
+ vo.setTotalSegmentCount(1);
+ vo.setUpdatedAt(System.currentTimeMillis());
+ vo.setEvents(Collections.emptyList());
+ result.put(protocol.getTaskNo(), vo);
+ }
+ return result;
}
private Map<Integer, StationTaskTraceVo> loadFallbackActiveTraceMap(Integer currentTaskNo,
@@ -2200,7 +2282,7 @@
}
List<Integer> taskNoList = new ArrayList<>(activeTaskProtocolMap.keySet());
- int limit = Math.max(50, taskNoList.size() * 8);
+ int limit = Math.max(taskNoList.size(), taskNoList.size() * 2);
List<BasStationOpt> optList;
try {
optList = basStationOptService.list(new QueryWrapper<BasStationOpt>()
@@ -3021,6 +3103,16 @@
}
}
+ private static class CachedLoopMergeGuardContext {
+ private final long cacheAtMs;
+ private final LoopMergeGuardContext context;
+
+ private CachedLoopMergeGuardContext(long cacheAtMs, LoopMergeGuardContext context) {
+ this.cacheAtMs = cacheAtMs;
+ this.context = context;
+ }
+ }
+
private static class PathCandidateMetrics {
private List<NavigateNode> path;
private int pathLen;
@@ -3074,6 +3166,16 @@
private static class LoopMergeGuardContext {
private final Set<Integer> loopStationIdSet = new HashSet<>();
private final Map<Integer, Set<Integer>> loopNeighborMap = new HashMap<>();
+
+ private LoopMergeGuardContext() {
+ }
+
+ private LoopMergeGuardContext(LoopMergeGuardContext source) {
+ this.loopStationIdSet.addAll(source.loopStationIdSet);
+ for (Map.Entry<Integer, Set<Integer>> entry : source.loopNeighborMap.entrySet()) {
+ this.loopNeighborMap.put(entry.getKey(), new LinkedHashSet<>(entry.getValue()));
+ }
+ }
}
private static class LoopMergeEntry {
--
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