With JVM inlining enabled, profiles of Terasort run show more than 3% time
spent in MapTask$MapOutputBuffer.compare( ) method in each of the Map JVMs.
In this particular configuration there are 8 Map JVMs. So a big chunk of
time is spent in this particular method. With JVM inlining disabled
:
With JVM inlining enabled, profiles of Terasort run show more than 3% time
spent in MapTask$MapOutputBuffer.compare( ) method in each of the Map JVMs.
In this particular configuration there are 8 Map JVMs. So a big chunk of
time is spent in this particular method. With JVM inlining disabled