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Gopal V commented on TEZ-3349: ------------------------------ The movabs + cmp is a type check - I'm guessing for a JIT inline cache, checking for the impl. Doing that once per IndexedSortable::swap() seems to be excessive. > Tez: PipelinedSorter - remove interface calls from the inner loop > ----------------------------------------------------------------- > > Key: TEZ-3349 > URL: https://issues.apache.org/jira/browse/TEZ-3349 > Project: Apache Tez > Issue Type: Sub-task > Reporter: Gopal V > Attachments: movabs-check.png > > > IndexedSortable is responsible for a huge degradation in sort performance in > PipelinedSorter. > With the TezRawComparator in place, the interface dispatch within indexed > sortable is significantly affecting the speed of the sort impl. > !movabs-check.png! -- This message was sent by Atlassian JIRA (v6.3.4#6332)