本篇文章主要介绍了"jvm性能 java-jvm-jmap"，主要涉及到jvm性能方面的内容，对于其他编程jrs看球网直播吧_低调看直播体育app软件下载_低调看体育直播感兴趣的同学可以参考一下：
sudo jmap -heap 27409输出：
Attaching to process ID 27409, please wait...Debugger a...
sudo jmap -heap 27409
输出：
Attaching to process ID 27409, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 24.45-b08
using thread-local object allocation.
Parallel GC with 4 thread(s)
Heap Configuration:
MinHeapFreeRatio = 40
MaxHeapFreeRatio = 70
MaxHeapSize = 2147483648 (2048.0MB)
NewSize = 268435456 (256.0MB)
MaxNewSize = 17592186044415 MB
OldSize = 5439488 (5.1875MB)
NewRatio = 2
SurvivorRatio = 8
PermSize = 268435456 (256.0MB)
MaxPermSize = 268435456 (256.0MB)
G1HeapRegionSize = 0 (0.0MB)
Heap Usage:
PS Young Generation
Eden Space:
capacity = 704643072 (672.0MB)
used = 429546320 (409.6472930908203MB)
free = 275096752 (262.3527069091797MB)
60.959418614705406% used
From Space:
capacity = 5767168 (5.5MB)
used = 4327344 (4.1268768310546875MB)
free = 1439824 (1.3731231689453125MB)
75.03412420099431% used
To Space:
capacity = 5767168 (5.5MB)
used = 0 (0.0MB)
free = 5767168 (5.5MB)
0.0% used
PS Old Generation
capacity = 1431830528 (1365.5MB)
used = 574251648 (547.6490478515625MB)
free = 857578880 (817.8509521484375MB)
40.106118480524536% used
PS Perm Generation
capacity = 268435456 (256.0MB)
used = 72128064 (68.78668212890625MB)
free = 196307392 (187.21331787109375MB)
26.869797706604004% used
31742 interned Strings occupying 3432376 bytes.
以上就介绍了jvm性能 java-jvm-jmap，包括了jvm性能方面的内容，希望对其他编程jrs看球网直播吧_低调看直播体育app软件下载_低调看体育直播有兴趣的朋友有所帮助。
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