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4年前
系统上内存泄漏的有什么可以定位的思路
因为系统隔三岔五地出现问题,每次都重启服务器就能解决了,所以我想是不是系统里面存在内存泄漏,但是对操作系统这方面一窍不通,百度了一下,用了jmap -heap pid
输出了以下参数,本人只能看到From Space的使用率特别高,其他的几个使用,但是具体有没有毛病就不太清楚了,恳求各位大佬帮忙看一下哪些参数有异常。谢谢。
using thread-local object allocation.
Parallel GC with 4 thread(s)
Heap Configuration:
MinHeapFreeRatio = 0
MaxHeapFreeRatio = 100
MaxHeapSize = 1038090240 (990.0MB)
NewSize = 21495808 (20.5MB)
MaxNewSize = 346030080 (330.0MB)
OldSize = 43515904 (41.5MB)
NewRatio = 2
SurvivorRatio = 8
MetaspaceSize = 21807104 (20.796875MB)
CompressedClassSpaceSize = 1073741824 (1024.0MB)
MaxMetaspaceSize = 17592186044415 MB
G1HeapRegionSize = 0 (0.0MB)
Heap Usage:
PS Young Generation
Eden Space:
capacity = 161480704 (154.0MB)
used = 96519472 (92.04814147949219MB)
free = 64961232 (61.95185852050781MB)
59.771520441228695% used
From Space:
capacity = 24641536 (23.5MB)
used = 24184032 (23.063690185546875MB)
free = 457504 (0.436309814453125MB)
98.14336249168883% used
To Space:
capacity = 40370176 (38.5MB)
used = 0 (0.0MB)
free = 40370176 (38.5MB)
0.0% used
PS Old Generation
capacity = 159907840 (152.5MB)
used = 82973360 (79.12956237792969MB)
free = 76934480 (73.37043762207031MB)
51.88823762487193% used
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