kettle pentaho"/>
kettle pentaho
在前一篇文章xms/xmx/xss在kette中的调优设置中,我对kettle进行了一次优化,这次我们再一次进行优化,这次效果非常明显,这次优化有两部分:一、修改jvm添加xmn,二、修改日志输出级别
在Java TM Performance一书中,有这样一段话:
-Xmn is convenient to size both the initial and maximum size of the young generation
space. It is important to note that if-Xms and -Xmx are not set to the same value and
-Xmn is used, a growth or contraction in the Java heap size will not adjust the size of
the young generation space. The size of the young generation space will remain constant with any growth or contraction of the Java heap size. Therefore, -Xmn should
be used only when -Xms and -Xmx are set to the same value.
好了,看看我的修改结果
# ******************************************************************
# ** Set java runtime options **
# ** Change 512m to higher values in case you
更多推荐
kettle pentaho
发布评论