JDK-8267125 : AES Galois CounterMode (GCM) interleaved implementation using AVX512 + VAES instructions
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 17
  • Priority: P2
  • Status: Resolved
  • Resolution: Fixed
  • CPU: x86
  • Submitted: 2021-05-14
  • Updated: 2024-04-11
  • Resolved: 2021-08-24
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JDK 18
18 b12Fixed
Related Reports
Blocks :  
JDK-8298249 - Excessive memory allocation in CipherInputStream AEAD decryption
Duplicate :  
JDK-8178478 - Better parallelize GCM
Relates :  
JDK-8296507 - GCM using more memory than necessary with in-place operations
Relates :  
JDK-8231349 - Move intrinsic stubs generation to compiler runtime initialization code
Relates :  
JDK-8273297 - AES/GCM non-AVX512+VAES CPUs suffer after 8267125
Relates :  
JDK-8319747 - galoisCounterMode_AESCrypt stack walking broken
Relates :  
JDK-8273297 - AES/GCM non-AVX512+VAES CPUs suffer after 8267125
Description
I would like to submit AES-GCM optimization for x86_64 architectures supporting AVX3+VAES (Evex encoded AES). This optimization interleaves AES and GHASH operations.
Performance gain of ~1.5x - 2x for message sizes 8k and above.

Contributor: Smita Kamath (smita.kamath@intel.com) and Tomasz Kantecki (tomasz.kantecki@intel.com)
Comments
Changeset: 0e7288ff Author: Smita Kamath <svkamath@openjdk.org> Committer: Anthony Scarpino <ascarpino@openjdk.org> Date: 2021-08-24 18:48:31 +0000 URL: https://git.openjdk.java.net/jdk/commit/0e7288ffbf635b9fdb17e8017e9a4f673ca0501d
24-08-2021