The old GC routinely gives me lower performance than modern GC. The default is now quite good for batch programs.
On Sun, Sep 26, 2010 at 8:10 AM, Chris K Wensel <[email protected]> wrote: > historically i'v run this property with no issues, but should probably > re-research the gc setting (comments please) > "mapred.child.java.opts", "-server -Xmx2000m -XX:+UseParallelOldGC" >
