缓存M3U8 CPU和内存巨高

[YasinTian]

CPU一直百分之百，几秒钟内存就会占用到1个G。
21.53 s 100.0% 0 s HGPJ (1358)
18.07 s 83.9% 0 s _pthread_wqthread 0x24342
18.07 s 83.9% 0 s _pthread_wqthread
18.07 s 83.9% 0 s 0x1036cde36
18.07 s 83.9% 0 s 0x1036c1cb2
18.07 s 83.9% 0 s 0x1036c0fa6
18.07 s 83.9% 0 s 0x1036b95ee
18.07 s 83.9% 0 s 0x1036b7b66
9.26 s 43.0% 0 s 0x102fc0cae
9.26 s 43.0% 0 s 0x102fc0d66
8.74 s 40.6% 0 s 0x102faed12
8.74 s 40.6% 0 s 0x102fae7b2
8.70 s 40.3% 0 s 0x102fae916
8.70 s 40.3% 0 s -[NSArray sortedArrayFromRange:options:usingComparator:]
8.69 s 40.3% 0 s CFSortIndexes
8.69 s 40.3% 0 s __CFSimpleMergeSort
7.74 s 35.9% 0 s __CFSimpleMergeSort
6.72 s 31.2% 0 s __CFSimpleMergeSort
5.68 s 26.3% 0 s __CFSimpleMergeSort
4.62 s 21.4% 0 s __CFSimpleMergeSort
3.59 s 16.6% 0 s __CFSimpleMergeSort
2.58 s 11.9% 0 s __CFSimpleMergeSort
1.68 s 7.8% 0 s __CFSimpleMergeSort
888.00 ms 4.1% 0 s __CFSimpleMergeSort
444.00 ms 2.0% 0 s 0x102faebfe
444.00 ms 2.0% 0 s +[NSFileAttributes _attributesAtPath:partialReturn:filterResourceFork:error:]
172.00 ms 0.7% 0 s +[NSFileAttributes _populateCatInfo:forURL:statInfo:error:]
91.00 ms 0.4% 91.00 ms __getattrlist
87.00 ms 0.4% 87.00 ms lstat
63.00 ms 0.2% 0 s _attributesAtPath
12.00 ms 0.0% 0 s +[NSURL(NSURL) fileURLWithPath:isDirectory:]
8.00 ms 0.0% 0 s -[NSFileManager getFileSystemRepresentation:maxLength:withPath:]
6.00 ms 0.0% 0 s 0x11e871a52
2.00 ms 0.0% 0 s 0x11e871a96
2.00 ms 0.0% 0 s +[NSFileAttributes attributesWithStat:]
1.00 ms 0.0% 0 s 0xbd2d17019e7618f6