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        如何将详细的垃圾收集输出重定向到文件?

        How to redirect verbose garbage collection output to a file?(如何将详细的垃圾收集输出重定向到文件?)
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                  本文介绍了如何将详细的垃圾收集输出重定向到文件?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  如何将详细垃圾回收输出重定向到文件?Sun 的网站显示了一个适用于 Unix 的示例,但它不适用于 Windows.

                  解决方案

                  来自java -X的输出:

                  <上一页>-Xloggc: 将 GC 状态记录到带有时间戳的文件中

                  记录在这里:

                  <块引用>

                  -Xloggc:文件名

                  设置详细的 GC 事件信息应重定向到的文件以进行日志记录.写入此文件的信息类似于 -verbose:gc 的输出,其中包含自每个记录事件之前的第一个 GC 事件以来经过的时间.-Xloggc 选项覆盖 -verbose:gc 如果两者都使用相同的 java 命令.

                  例子:

                   -Xloggc:garbage-collection.log

                  所以输出看起来像这样:

                  <上一页>0.590:[GC 896K->278K(5056K),0.0096650 秒]0.906:[GC 1174K->774K(5056K),0.0106856 秒]1.320:[GC 1670K->1009K(5056K),0.0101132 秒]1.459:[GC 1902K->1055K(5056K),0.0030196 秒]1.600:[GC 1951K->1161K(5056K),0.0032375 秒]1.686:[GC 1805K->1238K(5056K),0.0034732 秒]1.690:[完整 GC 1238K->1238K(5056K),0.0631661 秒]1.874:[GC 62133K->61257K(65060K),0.0014464 秒]

                  How do I redirect verbose garbage collection output to a file? Sun’s website shows an example for Unix but it doesn't work for Windows.

                  解决方案

                  From the output of java -X:

                      -Xloggc:<file>    log GC status to a file with time stamps
                  

                  Documented here:

                  -Xloggc:filename

                  Sets the file to which verbose GC events information should be redirected for logging. The information written to this file is similar to the output of -verbose:gc with the time elapsed since the first GC event preceding each logged event. The -Xloggc option overrides -verbose:gc if both are given with the same java command.

                  Example:

                      -Xloggc:garbage-collection.log

                  So the output looks something like this:

                  0.590: [GC 896K->278K(5056K), 0.0096650 secs]
                  0.906: [GC 1174K->774K(5056K), 0.0106856 secs]
                  1.320: [GC 1670K->1009K(5056K), 0.0101132 secs]
                  1.459: [GC 1902K->1055K(5056K), 0.0030196 secs]
                  1.600: [GC 1951K->1161K(5056K), 0.0032375 secs]
                  1.686: [GC 1805K->1238K(5056K), 0.0034732 secs]
                  1.690: [Full GC 1238K->1238K(5056K), 0.0631661 secs]
                  1.874: [GC 62133K->61257K(65060K), 0.0014464 secs]
                  

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