我在釋放Python中的內(nèi)存時(shí)遇到問(wèn)題。情況基本上是這樣的：我有一個(gè)大數(shù)據(jù)集，分為4個(gè)文件。每個(gè)文件包含5000個(gè)numpy形狀數(shù)組（3072，412）的列表。我試圖將每個(gè)數(shù)組的第10至20列提取到一個(gè)新列表中。我想要做的是依次讀取每個(gè)文件，提取需要的數(shù)據(jù)，并釋放我正在使用的內(nèi)存，然后再繼續(xù)下一個(gè)文件。但是，刪除對(duì)象，將其設(shè)置為None并將其設(shè)置為0，然后再調(diào)用gc.collect()似乎無(wú)效。這是我正在使用的代碼片段：num_files=4start=10end=20           fields = []for j in range(num_files):    print("Working on file ", j)    source_filename = base_filename + str(j) + ".pkl"    print("Memory before: ", psutil.virtual_memory())    partial_db = joblib.load(source_filename)    print("GC tracking for partial_db is ",gc.is_tracked(partial_db))    print("Memory after loading partial_db:",psutil.virtual_memory())    for x in partial_db:        fields.append(x[:,start:end])    print("Memory after appending to fields: ",psutil.virtual_memory())    print("GC Counts before del: ", gc.get_count())    partial_db = None    print("GC Counts after del: ", gc.get_count())    gc.collect()    print("GC Counts after collection: ", gc.get_count())    print("Memory after freeing partial_db: ", psutil.virtual_memory())這是幾個(gè)文件后的輸出：Working on file  0Memory before:  svmem(total=67509161984, available=66177449984,percent=2.0, used=846712832, free=33569669120, active=27423051776, inactive=5678043136, buffers=22843392, cached=33069936640, shared=15945728)GC tracking for partial_db is  TrueMemory after loading partial_db:  svmem(total=67509161984, available=40785944576, percent=39.6, used=26238181376, free=8014237696, active=54070542336, inactive=4540620800, buffers=22892544, cached=33233850368, shared=15945728)Memory after appending to fields:  svmem(total=67509161984, available=40785944576, percent=39.6, used=26238181376, free=8014237696, active=54070542336, inactive=4540620800, buffers=22892544, cached=33233850368, shared=15945728)GC Counts before del:  (0, 7, 3)GC Counts after del:  (0, 7, 3)GC Counts after collection:  (0, 0, 0)如果我不放手，它將耗盡所有內(nèi)存并觸發(fā)MemoryError異常。有誰(shuí)知道我該怎么做才能確保partial_db釋放使用的數(shù)據(jù)？