JDK-8245304 : Re-examine ThreadLocal usage in java.math.BigDecimal
  • Type: Sub-task
  • Component: core-libs
  • Sub-Component: java.math
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2020-05-19
  • Updated: 2020-09-19
  • Resolved: 2020-08-13
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JDK 16
16 b12Fixed
Related Reports
Relates :  
JDK-6622432 - RFE: Performance improvements to java.math.BigDecimal
Description
Need to measure the impact of not caching StringBuilderHelper.
Comments
We've been through the changes in JDK-6622432. The TL may have been useful before the stringCache was added. The only method that seems to benefit from the TL now is the toEngineeringString method but that benefit goes away if the StringBuilder is created with a larger capacity (which avoids resizing).
19-09-2020
URL: https://hg.openjdk.java.net/jdk/jdk/rev/a4a148fe1005 User: bpb Date: 2020-08-13 16:34:11 +0000
13-08-2020
Thanks for confirming that [~alanb].
12-08-2020
The use of ThreadLocal was added by JDK-6622432. The performance metrics from that issue should be re-examined with the proposed changes.
11-08-2020