[SPARK-17301][SQL] Remove unused classTag field from AtomicType base class #14869
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Test build #64605 has finished for PR 14869 at commit
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LGTM - merging in master/2.0. |
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Aug 30, 2016
…class There's an unused `classTag` val in the AtomicType base class which is causing unnecessary slowness in deserialization because it needs to grab ScalaReflectionLock and create a new runtime reflection mirror. Removing this unused code gives a small but measurable performance boost in SQL task deserialization. Author: Josh Rosen <[email protected]> Closes #14869 from JoshRosen/remove-unused-classtag. (cherry picked from commit 48b459d) Signed-off-by: Reynold Xin <[email protected]>
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There's an unused
classTagval in the AtomicType base class which is causing unnecessary slowness in deserialization because it needs to grab ScalaReflectionLock and create a new runtime reflection mirror. Removing this unused code gives a small but measurable performance boost in SQL task deserialization.