JDK-8031960 : Improve BigInteger Karatsuba multiplication performance under high allocation pressure
  • Type: Enhancement
  • Component: core-libs
  • Sub-Component: java.math
  • Affected Version: 9
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2014-01-16
  • Updated: 2018-09-11
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tbdUnresolved
Related Reports
Relates :  
JDK-4837946 - Faster multiplication and exponentiation of large integers
Description
The performance of Karatsuba multiplication may suffer from high allocation pressure under saturated threading. The current implementation allocates approximately 15 BigIntegers per recursion level (30 objects, 15 wrappers + 15 int[]).