memory leak

[leviluo]

this is my main socket.io code:
chat.js.zip

this is dump file socket.io at start:
1660347155092.heapsnapshot.zip

this is dump file socket.io after about 12 hours:
1660434926431.heapsnapshot.zip

this is memory record at start:
{
gc_ts: 1660435083534346,
gcScavengeCount: 6,
gcScavengeTime: 35094684,
gcMarkSweepCompactCount: 1,
gcMarkSweepCompactTime: 11370196,
gcIncrementalMarkingCount: 2,
gcIncrementalMarkingTime: 779792,
gcProcessWeakCallbacksCount: 1,
gcProcessWeakCallbacksTime: 229,
total_heap_size: 109916160,
total_heap_size_executable: 2359296,
total_physical_size: 109668288,
total_available_size: 2089975504,
used_heap_size: 82783856,
heap_size_limit: 2197815296,
malloced_memory: 1065032,
peak_malloced_memory: 3763256,
gc_time: 11370196
}

this is memory record after about 12 hours:
{
gc_ts: 1660434978708896,
gcScavengeCount: 8330,
gcScavengeTime: 6094003772,
gcMarkSweepCompactCount: 68,
gcMarkSweepCompactTime: 1072605909,
gcIncrementalMarkingCount: 132,
gcIncrementalMarkingTime: 61912948,
gcProcessWeakCallbacksCount: 2,
gcProcessWeakCallbacksTime: 4448,
total_heap_size: 114634752,
total_heap_size_executable: 5767168,
total_physical_size: 113205152,
total_available_size: 2085620912,
used_heap_size: 109306480,
heap_size_limit: 2197815296,
malloced_memory: 4210760,
peak_malloced_memory: 4870952,
gc_time: 36112984
}