JDK-7005859 : G1: implement +UseNUMA for G1
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 7
  • Priority: P3
  • Status: Closed
  • Resolution: Duplicate
  • OS: generic
  • CPU: generic
  • Submitted: 2010-12-09
  • Updated: 2023-12-13
  • Resolved: 2018-11-22
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Other
tbdResolved
Related Reports
Duplicate :  
JDK-8210473 - JEP 345: NUMA-Aware Memory Allocation for G1
Relates :  
JDK-8046147 - JEP 157: G1 GC: NUMA-Aware Allocation
Description
We should port the NUMA allocator from ParallelGC to G1 to improve G1's performance on NUMA architectures. The high-level idea is to have a pool of G1 regions associated with each lgroup and one allocating region per lgroup. So, at the point of slow path allocation (i.e., when allocating a new TLAB or an object outside a TLAB) we should decide which current allocating region to allocate out of.
Comments
To be implemented as part of JDK-8210473
22-11-2018